---
title: "iOS PDF library — View, edit, annotate, and more | Nutrient"
canonical_url: "https://www.nutrient.io/guides/ios/"
md_url: "https://www.nutrient.io/guides/ios.md"
last_updated: "2026-06-09T00:00:00.000Z"
description: "Unlock the secrets to mastering iOS development with our comprehensive guide. Enhance your skills and elevate your projects with expert insights!"
---

# iOS PDF library

Use Nutrient iOS SDK for viewing, annotating, editing, and creating PDFs. It offers developers powerful Swift APIs for adding PDF functionality to iOS applications using SwiftUI or UIKit. Explore the [iOS PDF SDK](https://www.nutrient.io/sdk/ios/) for pricing and deployment options.

[Try for free](https://www.nutrient.io/sdk/ios/getting-started.md)

[Launch demo](https://www.nutrient.io/guides/ios/demo.md)

**Latest release**: Discover what’s new! Check out our changelog for the latest release updates.

[Learn more](https://www.nutrient.io/guides/ios/changelog.md)

## Essential guides

Learn how to get started with opening documents, saving changes, and customizing the UI.

[Explore all](https://www.nutrient.io/guides/ios/intro.md)

---

**Open a document**

How to open a PDF from local storage, URL, in-memory data, and more

[Read more](https://www.nutrient.io/guides/ios/open-a-document.md)

---

**Save a document**

How to save a PDF to local storage, remote server, and more

[Read more](https://www.nutrient.io/guides/ios/save-a-document.md)

---

**User interface**

How to customize icons, buttons, toolbars, the look and feel, and more

[Read more](https://www.nutrient.io/guides/ios/user-interface.md)

## Framework support

Nutrient iOS SDK is compatible with [iPadOS](https://www.nutrient.io/guides/ios/ipad.md), [Mac Catalyst](https://www.nutrient.io/guides/ios/catalyst.md), [Flutter](https://www.nutrient.io/guides/flutter.md), [React Native](https://www.nutrient.io/guides/react-native.md), and [.NET for iOS](https://www.nutrient.io/sdk/dotnet-for-ios/getting-started.md).

Mac Catalyst

[Read more](https://www.nutrient.io/guides/ios/catalyst.md)

Flutter

[Read more](https://www.nutrient.io/guides/flutter.md)

React Native

[Read more](https://www.nutrient.io/guides/react-native.md).NET for iOS

[Read more](https://www.nutrient.io/sdk/dotnet-for-ios/getting-started.md)

## File type support

Microsoft Office file types are supported when using the optional [Document Engine](https://www.nutrient.io/guides/document-engine.md).

`PDF documents`

`Image documents`

`Office files`

**Call to Action**

Start your free trial for unlimited access and expert support.

[Learn More](https://www.nutrient.io/sdk/ios/getting-started.md)
---

## Related pages

- [Agent skill](/guides/ios/agent-skill.md)
- [Best practices](/guides/ios/best-practice.md)
- [iOS PDF bookmark SDK](/guides/ios/bookmarks.md)
- [Mac Catalyst PDF library](/guides/ios/catalyst.md)
- [Changelog for iOS](/guides/ios/changelog.md)
- [Compare documents on iOS](/guides/ios/compare-documents.md)
- [Cordova PDF library](/guides/ios/cordova.md)
- [Discover innovative PDF SDK demos for multiple platforms](/guides/ios/demo.md)
- [Download our iOS library](/guides/ios/downloads.md)
- [visionOS buides: Integrate our PDF library](/guides/ios/intro-visionos.md)
- [iOS guides: Integrate our PDF library](/guides/ios/intro.md)
- [Ionic PDF library](/guides/ios/ionic.md)
- [iPad PDF Library](/guides/ios/ipad.md)
- [iPhone PDF library](/guides/ios/iphone.md)
- [Knowledge base](/guides/ios/kb.md)
- [Contributing to Nutrient projects](/guides/ios/miscellaneous/contributing.md)
- [Swift PDF library](/guides/ios/swift.md)
- [Upgrade and migration guides](/guides/ios/upgrade.md)
- [visionOS PDF library](/guides/ios/visionos.md)
- [Xamarin.iOS PDF library](/guides/ios/xamarin.md)

## Pages in this section

- [Changelog](/guides/ios/about/changelog.md)
- [File type support](/guides/ios/about/file-type-support.md)
- [Framework support](/guides/ios/about/framework-support.md)
- [System compatibility for iOS](/guides/ios/announcements/version-support.md)
- [Licensing](/guides/ios/faq/licensing.md)
- [Add AI capabilities to Nutrient document viewer](/guides/ios/ai-assistant.md)
- [Customize AI Assistant appearance](/guides/ios/ai-assistant/appearance-customization-swiftui.md)
- [Customize AI Assistant appearance](/guides/ios/ai-assistant/appearance-customization-uikit.md)
- [Introduction to AI Assistant](/guides/ios/ai-assistant/introduction.md)
- [Work with multiple documents in AI Assistant](/guides/ios/ai-assistant/multiple-documents-swiftui.md)
- [Work with multiple documents in AI Assistant](/guides/ios/ai-assistant/multiple-documents-uikit.md)
- [On-device AI Assistant with Apple Intelligence](/guides/ios/ai-assistant/on-device.md)
- [Image annotation on iOS](/guides/ios/annotations/annotate-images.md)
- [Image annotation specification](/guides/ios/features/image-document-standard.md)
- [Automatically save PDF annotations on iOS](/guides/ios/annotations/annotation-and-bookmark-saving-triggers.md)
- [Save PDF annotations on iOS](/guides/ios/annotations/annotation-saving-mechanism.md)
- [Embed annotations in PDF on iOS](/guides/ios/annotations/save/embed-into-pdf.md)
- [Save PDF annotations to external storage on iOS](/guides/ios/importing-exporting/annotation-providers.md)
- [Setting annotation authors on iOS](/guides/ios/annotations/annotation-author-name.md)
- [Defining annotation blend modes on iOS](/guides/ios/annotations/annotation-blend-modes.md)
- [Define annotation behavior with flags on iOS](/guides/ios/annotations/annotation-flags.md)
- [Annotation state manager on iOS](/guides/ios/annotations/annotation-state-manager.md)
- [Z-index for annotation stacking order on iOS](/guides/ios/annotations/annotation-z-index.md)
- [How to embed files in PDF annotations on iOS](/guides/ios/annotations/create-edit-and-remove/attach-a-file.md)
- [Disable PDF annotation editing for iOS users](/guides/ios/annotations/create-edit-and-remove/disable-editing.md)
- [Drag-and-drop annotations on iOS](/guides/ios/annotations/create-edit-and-remove/drag-and-drop.md)
- [Detect changes to PDF annotations in iOS apps](/guides/ios/annotations/detecting-if-annotations-have-changed.md)
- [Programmatically create PDF annotations on iOS](/guides/ios/annotations/programmatically-creating-annotations.md)
- [Annotations object model on iOS](/guides/ios/annotations/the-annotation-object-model.md)
- [Undo and redo annotations on iOS](/guides/ios/features/undo-redo.md)
- [Image picker: Add image annotations to PDFs on iOS](/guides/ios/miscellaneous/image-picker.md)
- [Customize the annotation inspector on iOS](/guides/ios/annotations/annotation-inspector.md)
- [Customizing annotation color pickers on iOS](/guides/ios/customizing-the-interface/customizing-color-pickers.md)
- [Customizing lists of annotations on iOS](/guides/ios/customizing-the-interface/customizing-the-annotation-table-view-controller.md)
- [Customizing the annotation toolbar on iOS](/guides/ios/customizing-the-interface/customizing-the-annotation-toolbar.md)
- [How to rotate annotations on iOS](/guides/ios/annotations/annotation-rotation.md)
- [Flatten annotations on iOS](/guides/ios/annotations/flatten.md)
- [PDF annotation library for iOS](/guides/ios/annotations/introduction-to-annotations.md)
- [Magic Ink tool: Draw and detect annotation shapes](/guides/ios/annotations/magic-ink.md)
- [Review and reply to annotations on iOS](/guides/ios/annotations/replies.md)
- [Customizing PDF annotation appearance streams](/guides/ios/annotations/appearance-streams.md)
- [Configure annotation presets on iOS](/guides/ios/annotations/changing-default-values-for-color-and-text-size-of-annotations.md)
- [Store custom data in iOS PDF annotations](/guides/ios/annotations/custom-data-in-annotations.md)
- [Customizing note icons on iOS](/guides/ios/annotations/customize-annotation-rendering.md)
- [Customizing color presets on iOS](/guides/ios/annotations/customizing-presets.md)
- [Hiding annotations on iOS](/guides/ios/annotations/disable-rendered-annotation-types.md)
- [Creating a fixed-sized annotation on iOS](/guides/ios/annotations/fixed-size-annotations.md)
- [Support for Apple Pencil double tap on iOS](/guides/ios/annotations/apple-pencil-double-tap-actions.md)
- [Customizing Apple Pencil annotations on iOS](/guides/ios/annotations/apple-pencil.md)
- [Custom image stamp annotations on iOS](/guides/ios/annotations/image-annotations.md)
- [PDF stamp annotations on iOS](/guides/ios/annotations/stamp-annotations-configuration.md)
- [Import and export annotations from a database on iOS](/guides/ios/annotations/import-and-export/database.md)
- [Import and export PDF annotations on iOS](/guides/ios/annotations/import-and-export/document-engine.md)
- [Import and export annotations from Instant JSON on iOS](/guides/ios/importing-exporting/instant-json.md)
- [Import and export annotations from XFDF files on iOS](/guides/ios/importing-exporting/xfdf-support.md)
- [Supported PDF annotation types on iOS](/guides/ios/annotations/introduction-to-annotations/annotation-types.md)
- [Compare XFDF and Instant JSON for PDF annotations](/guides/ios/annotations/introduction-to-annotations/data-formats.md)
- [What are PDF annotations?](/guides/ios/annotations/introduction-to-annotations/what-are-annotations.md)
- [Add link annotations to PDFs on iOS](/guides/ios/annotations/link-annotations.md)
- [Explore flexible PDF annotation actions on iOS](/guides/ios/annotations/pdf-actions.md)
- [Multimedia PDF annotations library on iOS](/guides/ios/annotations/multimedia-annotations.md)
- [iOS video annotation library](/guides/ios/annotations/video-annotations.md)
- [Synchronizing PDF annotations on iOS](/guides/ios/annotations/synchronization.md)
- [Resolve conflicts for concurrent editing on iOS](/guides/ios/annotations/synchronization/conflict-resolution.md)
- [Storing PDF annotation data on iOS](/guides/ios/annotations/synchronization/storing-annotation-data.md)
- [Version String Enforcements](/guides/ios/announcements/version-string-enforcements.md)
- [Pspdfkitbundle Issues](/guides/ios/configuration-issues/pspdfkitbundle-issues.md)
- [Incorrect Bundle Version](/guides/ios/faq/incorrect-bundle-version.md)
- [Error 999](/guides/ios/pspdfkit-instant/error-999.md)
- [Sqlite Warnings](/guides/ios/troubleshooting/sqlite-warnings.md)
- [Undefined Symbols Error](/guides/ios/usage-issues/undefined-symbols-error.md)
- [Carthage integration](/guides/ios/best-practices/carthage-integration.md)
- [Nightly Builds](/guides/ios/best-practices/nightly-builds.md)
- [Reduce App Size](/guides/ios/best-practices/reduce-app-size.md)
- [Transferring File Edits To A Server](/guides/ios/best-practices/transferring-file-edits-to-a-server.md)
- [Using Automatic Saving Safely](/guides/ios/best-practices/using-automatic-saving-safely.md)
- [Version Numbering](/guides/ios/best-practices/version-numbering.md)
- [Customizing The Page Number](/guides/ios/customizing-pdf-pages/customizing-the-page-number.md)
- [Bitcode](/guides/ios/faq/bitcode.md)
- [Framework Size](/guides/ios/faq/framework-size.md)
- [iOS PDF SDK security](/guides/ios/faq/sdk-security.md)
- [Strategies For Multiple Bundle Ids](/guides/ios/faq/strategies-for-multiple-bundle-ids.md)
- [Manage your iOS status bar with view controllers](/guides/ios/faq/view-controller-based-status-bar-appearance.md)
- [Airdrop](/guides/ios/features/airdrop.md)
- [Customizing the log level on iOS](/guides/ios/features/logging.md)
- [Modifying permissions in your iOS app](/guides/ios/getting-started/permissions.md)
- [Using Document Efficiently](/guides/ios/getting-started/using-document-efficiently.md)
- [About Memory Usage](/guides/ios/memory-and-storage/about-memory-usage.md)
- [Saving Data Externally](/guides/ios/memory-and-storage/saving-data-externally.md)
- [Advanced Carthage integration](/guides/ios/miscellaneous/advanced-carthage-integration.md)
- [Advanced CocoaPods integration](/guides/ios/miscellaneous/advanced-cocoapods-integration.md)
- [Optimize PDF documents for mobile rendering on iOS](/guides/ios/miscellaneous/optimize-pdf-documents-for-mobile-rendering.md)
- [Powered By Nutrient](/guides/ios/miscellaneous/powered-by-nutrient.md)
- [Third Party Compatibility](/guides/ios/miscellaneous/third-party-compatibility.md)
- [Youtube Links](/guides/ios/miscellaneous/youtube-links.md)
- [App Transport Security](/guides/ios/pspdfkit-instant/app-transport-security.md)
- [Editing user permissions](/guides/ios/collaboration-permissions/changing-permissions.md)
- [Setting user collaboration permissions](/guides/ios/collaboration-permissions/defining-permissions.md)
- [Enhance collaboration with fine-grained permissions](/guides/ios/collaboration-permissions/introduction-to-collaboration-permissions.md)
- [Define document collaboration permissions effectively](/guides/ios/instant-synchronization/permissions/content-ownership.md)
- [Adding comments to PDFs on iOS](/guides/ios/comments/introduction-to-instant-comments.md)
- [PDF collaboration library for iOS](/guides/ios/instant-synchronization.md)
- [Client authentication in Nutrient Instant](/guides/ios/instant-synchronization/authentication.md)
- [Frequently asked questions](/guides/ios/instant-synchronization/faq.md)
- [Nutrient Instant and iOS data protection](/guides/ios/pspdfkit-instant/data-protection.md)
- [Integrating real-time collaboration into your iOS application](/guides/ios/pspdfkit-instant/getting-started.md)
- [Nutrient Instant and the document state](/guides/ios/pspdfkit-instant/instant-document-state.md)
- [Create PDF annotation layers on iOS](/guides/ios/pspdfkit-instant/instant-layers.md)
- [Seamless offline PDF annotation and synchronization](/guides/ios/pspdfkit-instant/offline-support.md)
- [Streamline PDF annotation syncing on iOS](/guides/ios/pspdfkit-instant/syncing.md)
- [Nutrient Instant usage](/guides/ios/pspdfkit-instant/usage.md)
- [App Fails To Archive](/guides/ios/configuration-issues/app-fails-to-archive.md)
- [Pspdfkit Doesnt Compile Or Link](/guides/ios/configuration-issues/pspdfkit-doesnt-compile-or-link.md)
- [PDF conversion library for iOS](/guides/ios/conversion.md)
- [Convert HTML to PDF on iOS](/guides/ios/conversion/html-to-pdf.md)
- [Convert images to PDF on iOS](/guides/ios/conversion/image-to-pdf.md)
- [Convert images to text on iOS](/guides/ios/conversion/image-to-text.md)
- [Convert PDFs to images on iOS](/guides/ios/conversion/pdf-to-image.md)
- [Scan and convert to searchable PDFs on iOS](/guides/ios/conversion/scan-to-searchable-pdf.md)
- [MS Office converter for iOS](/guides/ios/features/office-conversion.md)
- [Adding Auxiliary Or Decorative Views](/guides/ios/customizing-pdf-pages/adding-auxiliary-or-decorative-views.md)
- [Adding Custom Views To A Page](/guides/ios/customizing-pdf-pages/adding-custom-views-to-a-page.md)
- [Options to disable or enable PDF editing on iOS](/guides/ios/features/controlling-pdf-editing.md)
- [Document Features](/guides/ios/features/document-features.md)
- [SwiftUI PDF library](/guides/ios/getting-started/swiftui.md)
- [Document Downloads](/guides/ios/miscellaneous/document-downloads.md)
- [Configure document sharing options on iOS](/guides/ios/miscellaneous/document-sharing.md)
- [Changing The Font Size Or Color Of Page Text](/guides/ios/customizing-pdf-pages/changing-the-font-size-or-color-of-page-text.md)
- [A Graywhiteblack Page Is Rendered](/guides/ios/rendering-issues/a-graywhiteblack-page-is-rendered.md)
- [In Adobe Acrobat Hyperlinks Are Clickable But In Pspdfkit Some Or All Of Them Are Not Marked As Touchable](/guides/ios/rendering-issues/in-adobe-acrobat-hyperlinks-are-clickable-but-in-pspdfkit-some-or-all-of-them-are-not-marked-as-touchable.md)
- [Fixing inconsistent font issues in PDFs](/guides/ios/rendering-issues/inconsistent-fonts.md)
- [Inconsistent Labels](/guides/ios/rendering-issues/inconsistent-labels.md)
- [Understanding XFA forms and their impact](/guides/ios/rendering-issues/pspdfkit-doesnt-show-the-pdf-form.md)
- [Understanding PDF rendering complexities](/guides/ios/troubleshooting/complexities-of-rendering-pdfs.md)
- [Edit PDF metadata on iOS](/guides/ios/customizing-pdf-pages/customizing-document-metadata.md)
- [Change the document title in PDF metadata on iOS](/guides/ios/customizing-the-interface/changing-the-document-title.md)
- [Customize the document information on iOS](/guides/ios/customizing-the-interface/customizing-the-available-document-information.md)
- [Add Dark Mode to our iOS PDF viewer](/guides/ios/customizing-the-interface/appearance-mode-manager.md)
- [Open multiple windows in our iOS viewer](/guides/ios/features/multiple-windows.md)
- [Optimize your PDF reading with Reader View](/guides/ios/features/reader-view.md)
- [RTL support in our iOS viewer](/guides/ios/miscellaneous/page-bindings.md)
- [Customizing PDF viewer styling on iOS](/guides/ios/customizing-the-interface/appearance-styling.md)
- [Customizing menus on iOS](/guides/ios/customizing-the-interface/customizing-menus.md)
- [Editing PDFs in our iOS viewer](/guides/ios/features/document-editor-ui.md)
- [Localization: Change languages in our iOS PDF viewer](/guides/ios/features/localization.md)
- [Overriding classes in our iOS viewer](/guides/ios/getting-started/overriding-classes.md)
- [Customize electronic signatures UI on iOS](/guides/ios/signatures/customizing-the-signature-user-interface.md)
- [Customizing our iOS PDF viewer](/guides/ios/user-interface.md)
- [Customizing the toolbar in our visionOS PDF viewer](/guides/ios/user-interface/main-toolbar-visionos.md)
- [Customizing the toolbar in our iOS PDF viewer](/guides/ios/user-interface/main-toolbar.md)
- [Customizing iOS PDF viewer icons](/guides/ios/customizing-the-interface/changing-an-image-used-in-pspdfkit.md)
- [Customizing toolbar button styling on iOS](/guides/ios/customizing-the-interface/changing-the-design-of-the-default-buttons.md)
- [Customize view control modals on iOS](/guides/ios/faq/modally-presented-view-controllers.md)
- [Configuring scroll directions and page transitions in our viewer](/guides/ios/customizing-the-interface/document-presentation-options.md)
- [Configure permissions for iOS PDF viewer](/guides/ios/features/document-permissions.md)
- [Embedded files and PDF portfolio collections](/guides/ios/features/embedded-files.md)
- [Enhance your PDF workflow with JavaScript support](/guides/ios/features/javascript.md)
- [Customizing page navigation in our iOS viewer](/guides/ios/getting-started/document-interactions.md)
- [Display PDFs with the view state on iOS](/guides/ios/view-management/store-load-view-state.md)
- [iOS PDF viewer library](/guides/ios/viewer.md)
- [iOS image viewer library](/guides/ios/viewer/images.md)
- [Swift PDF viewer library](/guides/ios/viewer/swift.md)
- [Troubleshooting](/guides/ios/viewer/troubleshooting.md)
- [visionOS AR/VR PDF viewer](/guides/ios/viewer/visionos.md)
- [Embedding PDF view controllers on iOS](/guides/ios/customizing-the-interface/embedding-the-pdfviewcontroller-inside-a-custom-container-view-controller.md)
- [Customize PDF view controller states on iOS](/guides/ios/customizing-the-interface/state-customization.md)
- [Customize the display of PDFs with the view hierarchy](/guides/ios/customizing-the-interface/the-document-view-hierarchy.md)
- [Configure PDF view controllers on iOS](/guides/ios/getting-started/view-controller-configuration.md)
- [Customize user interactions on iOS](/guides/ios/customizing-the-interface/handling-user-interactions.md)
- [Drag and drop text or images in our iOS viewer](/guides/ios/features/drag-and-drop.md)
- [Keyboard shortcuts in our iOS viewer](/guides/ios/features/keyboard-shortcuts.md)
- [Selecting text in our iOS viewer](/guides/ios/features/text-selection.md)
- [Trackpad and mouse support in our iOS viewer](/guides/ios/features/trackpad-and-mouse-support.md)
- [Customize zooming options in our iOS viewer](/guides/ios/miscellaneous/zooming.md)
- [Document security on iOS](/guides/ios/document-security.md)
- [Creating password-protected PDFs on iOS](/guides/ios/document-security/add-a-password.md)
- [Securing PDFs by adding watermarks on iOS](/guides/ios/document-security/add-a-watermark.md)
- [Prevent sharing of PDF files on iOS](/guides/ios/document-security/prevent-sharing.md)
- [Managing PDF restrictions on iOS](/guides/ios/document-security/set-permissions.md)
- [Decrypt PDFs with AES on iOS](/guides/ios/security/aesdataprovider.md)
- [Encrypt PDFs with AES on iOS](/guides/ios/security/encrypt-or-decrypt-files-on-the-server.md)
- [Introduction to PDF encryption on iOS](/guides/ios/security/introduction-to-encryption.md)
- [Add and insert images into PDFs on iOS](/guides/ios/editor/add-image.md)
- [Add pages to PDF files on iOS](/guides/ios/editor/add-page.md)
- [How to attach files to PDFs on iOS](/guides/ios/editor/attach-a-file.md)
- [Customizing PDF editing permissions on iOS](/guides/ios/editor/document-permissions.md)
- [Edit text in PDFs on iOS](/guides/ios/editor/edit-text.md)
- [Merge multiple PDF files on iOS](/guides/ios/editor/merge-or-combine.md)
- [Split PDFs on iOS](/guides/ios/editor/split.md)
- [Adding watermarks to PDFs on iOS](/guides/ios/editor/watermark.md)
- [iOS PDF editor API usage](/guides/ios/features/document-editor.md)
- [PDF editor library for iOS](/guides/ios/features/document-processing.md)
- [PDF thumbnail view on iOS](/guides/ios/editor/built-in-ui/thumbnail-view.md)
- [PDF editing toolbar UI on iOS](/guides/ios/editor/built-in-ui/toolbar.md)
- [Cropping PDF pages on iOS](/guides/ios/editor/page-manipulation/crop.md)
- [Move or copy PDF pages on iOS](/guides/ios/editor/page-manipulation/move-or-copy.md)
- [Removing pages from a PDF on iOS](/guides/ios/editor/page-manipulation/remove.md)
- [Rotating PDF pages on iOS](/guides/ios/editor/page-manipulation/rotate.md)
- [Scale or resize PDFs on iOS](/guides/ios/editor/page-manipulation/scale-or-resize.md)
- [Events and notifications](/guides/ios/events-and-notifications.md)
- [iOS PDF annotation events and notifications](/guides/ios/events-and-notifications/annotation.md)
- [Analytics events](/guides/ios/events-and-notifications/events.md)
- [iOS PDF form updates and notifications guide](/guides/ios/events-and-notifications/forms.md)
- [Text selection events and notifications](/guides/ios/events-and-notifications/text-selection.md)
- [Analytics](/guides/ios/features/analytics.md)
- [PDF extraction library for iOS](/guides/ios/extraction.md)
- [Extract images from PDFs on iOS](/guides/ios/extraction/image-extraction.md)
- [Extract metadata from PDFs on iOS](/guides/ios/extraction/metadata.md)
- [Extract pages from PDFs on iOS](/guides/ios/extraction/page-extraction.md)
- [Parse PDF content on iOS](/guides/ios/extraction/parse-content.md)
- [Extract selected text from PDFs on iOS](/guides/ios/extraction/selected-text.md)
- [Extract the text position from PDFs on iOS](/guides/ios/extraction/text-position.md)
- [Extract text from PDFs on iOS](/guides/ios/features/text-extraction.md)
- [Coordinate space conversion](/guides/ios/faq/coordinate-spaces.md)
- [Customize PDF fonts on iOS](/guides/ios/features/custom-fonts.md)
- [Rendering annotations in our iOS PDF viewer](/guides/ios/getting-started/rendering-annotations.md)
- [PDF rendering library for iOS](/guides/ios/getting-started/rendering-pdf-pages.md)
- [Rendering PDF forms in our iOS viewer](/guides/ios/viewer/rendering/pdf-forms.md)
- [Finding The App Bundle Id](/guides/ios/faq/finding-the-app-bundle-id.md)
- [Understanding bundle IDs for iOS app development](/guides/ios/faq/what-is-a-bundle-id.md)
- [How to find the currently used SDK version](/guides/ios/license-issues/getting-the-currently-used-version.md)
- [Updates Have Expired](/guides/ios/license-issues/updates-have-expired.md)
- [Using The License Key In Other Languages](/guides/ios/license-issues/using-the-license-key-in-other-languages.md)
- [License Troubleshooting](/guides/ios/troubleshooting/license-troubleshooting.md)
- [Incremental PDF saving on iOS](/guides/ios/faq/growing-pdf-file-size.md)
- [Conflict resolution when saving PDFs on iOS](/guides/ios/features/conflict-resolution.md)
- [Automatically save PDFs on iOS](/guides/ios/features/document-checkpointing.md)
- [Save PDF documents on iOS](/guides/ios/save-a-document.md)
- [How to save PDFs on iOS](/guides/ios/save-a-document/save-as.md)
- [Save PDFs to a custom data provider on iOS](/guides/ios/save-a-document/to-custom-data-provider.md)
- [Save PDFs to Document Engine on iOS](/guides/ios/save-a-document/to-document-engine.md)
- [Save PDFs to local storage on iOS](/guides/ios/save-a-document/to-local-storage.md)
- [Save and upload PDFs on iOS devices](/guides/ios/save-a-document/to-remote-server.md)
- [Open a PDF from a custom data provider on iOS](/guides/ios/features/data-providers.md)
- [File coordination on iOS](/guides/ios/features/file-coordination.md)
- [Open a PDF on iOS](/guides/ios/open-a-document.md)
- [Open a PDF from Document Engine on iOS](/guides/ios/open-a-document/from-document-engine.md)
- [Open a PDF from in-memory data on iOS](/guides/ios/open-a-document/from-in-memory-data.md)
- [Open a local file on iOS](/guides/ios/open-a-document/from-local-storage.md)
- [Open password-protected PDFs on iOS](/guides/ios/open-a-document/password-protected-pdfs.md)
- [Troubleshoot opening a document](/guides/ios/open-a-document/troubleshooting.md)
- [Adding a digital signature to a PDF on iOS](/guides/ios/features/digital-signatures.md)
- [Biometric signatures on iOS](/guides/ios/signatures/digital-signatures/biometric.md)
- [Signatures in iOS viewer](/guides/ios/signatures/digital-signatures/built-in-ui.md)
- [Contained digital signatures on iOS](/guides/ios/signatures/digital-signatures/contained-signatures.md)
- [Sign PDFs and add custom encryption on iOS](/guides/ios/signatures/digital-signatures/custom-signers.md)
- [Customizing digital signatures on iOS](/guides/ios/signatures/digital-signatures/customization.md)
- [Generate a self-signed certificate for signing on iOS](/guides/ios/signatures/digital-signatures/generate-certificate.md)
- [Digital signature standards: CAdES and PAdES](/guides/ios/signatures/digital-signatures/standards.md)
- [Secure digital signatures for iOS PDF libraries](/guides/ios/signatures/digital-signatures/supported-methods.md)
- [Troubleshooting](/guides/ios/signatures/digital-signatures/troubleshooting.md)
- [Validating a digital signature on iOS](/guides/ios/signatures/digital-signatures/validation.md)
- [Generate blank PDFs on iOS](/guides/ios/features/document-creation.md)
- [Generate PDF reports on iOS](/guides/ios/generating-pdfs/generating-pdf-reports.md)
- [Generate PDFs from templates on iOS](/guides/ios/miscellaneous/custom-page-templates.md)
- [PDF generation library for iOS](/guides/ios/pdf-generation.md)
- [Generate PDFs from HTML on iOS](/guides/ios/pdf-generation/from-html.md)
- [Generate PDFs from images on iOS](/guides/ios/pdf-generation/from-images.md)
- [Generate PDFs from a PDF form in iOS](/guides/ios/pdf-generation/from-pdf-form.md)
- [Generate a password-protected PDF on iOS](/guides/ios/pdf-generation/password-protected-pdf.md)
- [Generate PDFs programmatically on iOS](/guides/ios/pdf-generation/programmatically.md)
- [Generate PDF thumbnails on iOS](/guides/ios/pdf-generation/thumbnail-preview.md)
- [Indexing PDF documents on iOS](/guides/ios/features/indexed-full-text-search.md)
- [Custom tokenizers for PDF search on iOS](/guides/ios/memory-and-storage/using-custom-tokenizers.md)
- [Adding a custom SQLite library for PDF search on iOS](/guides/ios/miscellaneous/custom-sqlite-library.md)
- [Generate PDF search previews on iOS](/guides/ios/search/indexed-full-text-search/customize-results.md)
- [PDF search matching options on iOS](/guides/ios/search/indexed-full-text-search/matching-options.md)
- [Index and search PDFs using iOS Spotlight](/guides/ios/search/indexed-full-text-search/spotlight-indexing.md)
- [Encrypt the PDF search database on iOS](/guides/ios/security/encryption-in-pdflibrary.md)
- [Redacting PDFs programmatically on iOS](/guides/ios/features/redaction.md)
- [PDF redaction library for iOS](/guides/ios/redaction.md)
- [Redacting PDFs in iOS viewer](/guides/ios/redaction/built-in-ui.md)
- [Redact PDFs with Nutrient iOS SDK](/guides/ios/redaction/introduction-to-redaction.md)
- [Using RegEx to redact PDFs on iOS](/guides/ios/redaction/regex-patterns.md)
- [Search and redact PDFs on iOS](/guides/ios/redaction/search-and-redact.md)
- [Search for text in PDFs on iOS](/guides/ios/features/text-search.md)
- [Search PDF annotations on iOS](/guides/ios/search/search-in-a-pdf/annotation-search.md)
- [Text-to-speech for our iOS viewer](/guides/ios/features/text-to-speech.md)
- [Accessibility support for our iOS PDF viewer](/guides/ios/viewer/accessibility/features.md)
- [PDF form library for iOS](/guides/ios/forms.md)
- [Extract data from PDF form fields on iOS](/guides/ios/forms/extract-form-data.md)
- [Flatten PDF form fields on iOS](/guides/ios/forms/flatten.md)
- [Validating PDF forms using JavaScript on iOS](/guides/ios/forms/javascript-validation.md)
- [Exploring PDF form actions on iOS devices](/guides/ios/forms/pdf-actions-support.md)
- [Programmatically add signature fields to PDF forms](/guides/ios/forms/create-edit-and-remove/add-signature-field.md)
- [How to disable PDF form editing on iOS devices](/guides/ios/forms/create-edit-and-remove/disable-editing.md)
- [PDF form field editor on iOS](/guides/ios/forms/create-edit-and-remove/edit-fields.md)
- [PDF form field flags on iOS](/guides/ios/forms/create-edit-and-remove/form-field-flags.md)
- [Form object model on iOS](/guides/ios/forms/create-edit-and-remove/form-object-model.md)
- [Creating fillable PDF forms on iOS](/guides/ios/forms/form-creation.md)
- [Attach a file to a PDF form field on iOS](/guides/ios/forms/fill-form-fields/attach-a-file.md)
- [Detect user input in PDF form fields on iOS](/guides/ios/forms/fill-form-fields/detect-user-input.md)
- [Add or edit images in PDF form fields on iOS](/guides/ios/forms/fill-form-fields/image-picker.md)
- [Undo and redo for PDF forms on iOS](/guides/ios/forms/fill-form-fields/undo-and-redo.md)
- [Form field support in our iOS viewer](/guides/ios/forms/fill-form-fields/using-the-ui.md)
- [Fill PDF form fields programmatically on iOS](/guides/ios/forms/form-filling.md)
- [Submit and save PDF forms to external destinations](/guides/ios/forms/form-submission.md)
- [Embed data into PDF forms on iOS](/guides/ios/forms/submit-or-save/embed-data-into-pdf.md)
- [Submit and save PDF forms to custom destinations](/guides/ios/forms/submit-or-save/to-custom-destination.md)
- [Save and submit PDF Forms to Document Engine on iOS](/guides/ios/forms/submit-or-save/to-document-engine.md)
- [Understanding PDF forms and their benefits](/guides/ios/forms/introduction-to-forms.md)
- [Store PDF form data on iOS](/guides/ios/forms/introduction-to-forms/data-formats.md)
- [Supported PDF form fields on iOS](/guides/ios/forms/introduction-to-forms/form-fields.md)
- [Reducing PDF size](/guides/ios/generating-pdfs/reducing-pdf-size.md)
- [Adding the Nutrient license key](/guides/ios/getting-started/adding-the-license-key.md)
- [Signed disk image for iOS](/guides/ios/security/signed-disk-image.md)
- [Framework signature validation](/guides/ios/troubleshooting/getting-started/framework-signature-validation-failed.md)
- [Example projects for iOS PDF library](/guides/ios/getting-started/example-projects.md)
- [Explore iOS PDF development with practical code samples](/guides/ios/samples.md)
- [Upgrading](/guides/ios/getting-started/upgrading.md)
- [14 2 Migration Guide](/guides/ios/migration-guides/14-2-migration-guide.md)
- [14 9 Migration Guide](/guides/ios/migration-guides/14-9-migration-guide.md)
- [Migrating From Apple Pdfkit](/guides/ios/migration-guides/migrating-from-apple-pdfkit.md)
- [Migrating To Advanced Digital Signatures Api](/guides/ios/migration-guides/migrating-to-advanced-digital-signatures-api.md)
- [Migrate to electronic signatures](/guides/ios/migration-guides/migrating-to-electronic-signatures.md)
- [Pspdfkit 10 3 Migration Guide](/guides/ios/migration-guides/pspdfkit-10-3-migration-guide.md)
- [Pspdfkit 10 4 Migration Guide](/guides/ios/migration-guides/pspdfkit-10-4-migration-guide.md)
- [Pspdfkit 10 Migration Guide](/guides/ios/migration-guides/pspdfkit-10-migration-guide.md)
- [Pspdfkit 11 3 Migration Guide](/guides/ios/migration-guides/pspdfkit-11-3-migration-guide.md)
- [Pspdfkit 11 4 Migration Guide](/guides/ios/migration-guides/pspdfkit-11-4-migration-guide.md)
- [Pspdfkit 11 5 Migration Guide](/guides/ios/migration-guides/pspdfkit-11-5-migration-guide.md)
- [Pspdfkit 12 2 Migration Guide](/guides/ios/migration-guides/pspdfkit-12-2-migration-guide.md)
- [Pspdfkit 12 3 Migration Guide](/guides/ios/migration-guides/pspdfkit-12-3-migration-guide.md)
- [Pspdfkit 12 Migration Guide](/guides/ios/migration-guides/pspdfkit-12-migration-guide.md)
- [Pspdfkit 13 3 Migration Guide](/guides/ios/migration-guides/pspdfkit-13-3-migration-guide.md)
- [Pspdfkit 13 Migration Guide](/guides/ios/migration-guides/pspdfkit-13-migration-guide.md)
- [Pspdfkit 3 Migration Guide](/guides/ios/migration-guides/pspdfkit-3-migration-guide.md)
- [Pspdfkit 4 Migration Guide](/guides/ios/migration-guides/pspdfkit-4-migration-guide.md)
- [Pspdfkit 5 Migration Guide](/guides/ios/migration-guides/pspdfkit-5-migration-guide.md)
- [Pspdfkit 6 5 Migration Guide](/guides/ios/migration-guides/pspdfkit-6-5-migration-guide.md)
- [Pspdfkit 6 Migration Guide](/guides/ios/migration-guides/pspdfkit-6-migration-guide.md)
- [Pspdfkit 7 6 Migration Guide](/guides/ios/migration-guides/pspdfkit-7-6-migration-guide.md)
- [Migrate to PSPDFKit 7 with ease](/guides/ios/migration-guides/pspdfkit-7-migration-guide.md)
- [PSPDFKit 8 migration guide for iOS developers](/guides/ios/migration-guides/pspdfkit-8-migration-guide.md)
- [Pspdfkit 9 2 Migration Guide](/guides/ios/migration-guides/pspdfkit-9-2-migration-guide.md)
- [Pspdfkit 9 3 Migration Guide](/guides/ios/migration-guides/pspdfkit-9-3-migration-guide.md)
- [Pspdfkit 9 4 Migration Guide](/guides/ios/migration-guides/pspdfkit-9-4-migration-guide.md)
- [Pspdfkit 9 5 Migration Guide](/guides/ios/migration-guides/pspdfkit-9-5-migration-guide.md)
- [Pspdfkit 9 Migration Guide](/guides/ios/migration-guides/pspdfkit-9-migration-guide.md)
- [Explore the Instant JSON format for annotations](/guides/ios/json.md)
- [JSON-to-XFDF conversion on iOS](/guides/ios/json/convert-to-xfdf.md)
- [How Instant JSON works](/guides/ios/json/how-it-works.md)
- [Understanding Instant JSON action types](/guides/ios/json/schema/actions.md)
- [Instant JSON format for PDF annotations explained](/guides/ios/json/schema/annotations.md)
- [Create and manage PDF bookmarks with Instant JSON](/guides/ios/json/schema/bookmarks.md)
- [Streamline document discussions with Instant Comments](/guides/ios/json/schema/comments.md)
- [Understanding Instant JSON attachments and schemas](/guides/ios/json/schema/file-attachments.md)
- [Sync PDF form field values using Instant JSON](/guides/ios/json/schema/form-field-values.md)
- [Effective guidelines for PDF form field types](/guides/ios/json/schema/form-fields.md)
- [Adding Swipe Gesture Recognizer](/guides/ios/knowledge-base/adding-swipe-gesture-recognizer.md)
- [Adding Vector Image Annotation From Instant Json](/guides/ios/knowledge-base/adding-vector-image-annotation-from-instant-json.md)
- [Adjusting Size Of Popovers](/guides/ios/knowledge-base/adjusting-size-of-popovers.md)
- [Fix app store connect operation errors in Xcode](/guides/ios/knowledge-base/app-store-connect-operation-errors.md)
- [Archive Errors Cocoapods](/guides/ios/knowledge-base/archive-errors-cocoapods.md)
- [Configuring Scroll Views](/guides/ios/knowledge-base/configuring-scroll-views.md)
- [Customize PDF rendering on iOS](/guides/ios/knowledge-base/customize-document-rendering.md)
- [Customize Share Sheet Apps](/guides/ios/knowledge-base/customize-share-sheet-apps.md)
- [Customize your iOS navigation bar above crop UI](/guides/ios/knowledge-base/customize-the-navigation-bar-in-crop.md)
- [Customizing Annotation Toolbar Frame](/guides/ios/knowledge-base/customizing-annotation-toolbar-frame.md)
- [Debugging Issues](/guides/ios/knowledge-base/debugging-issues.md)
- [Disabling Adding Pages With Images](/guides/ios/knowledge-base/disabling-adding-pages-with-images.md)
- [Disabling Auto Opening Comments](/guides/ios/knowledge-base/disabling-auto-opening-comments.md)
- [Disabling Directional Lock](/guides/ios/knowledge-base/disabling-directional-lock.md)
- [Disabling Text Selection](/guides/ios/knowledge-base/disabling-text-selection.md)
- [Drawing An Upright Stamp Annotation On A Rotated Page](/guides/ios/knowledge-base/drawing-an-upright-stamp-annotation-on-a-rotated-page.md)
- [Gatekeeper Alerts Mac Catalyst](/guides/ios/knowledge-base/gatekeeper-alerts-mac-catalyst.md)
- [Generate PDFs from complex HTML](/guides/ios/knowledge-base/generating-pdf-from-complex-html.md)
- [Customize action sheet appearance on iOS links](/guides/ios/knowledge-base/hide-or-customize-the-action-sheet-link-long-press.md)
- [Adding a custom view controller in iOS](/guides/ios/knowledge-base/how-do-i-add-custom-controller-to-containerviewcontroller.md)
- [How Do I Change How To Open Links](/guides/ios/knowledge-base/how-do-i-change-how-to-open-links.md)
- [How Do I Customize Search Results](/guides/ios/knowledge-base/how-do-i-customize-search-results.md)
- [How Do I Customize The Annotation Inspector](/guides/ios/knowledge-base/how-do-i-customize-the-annotation-inspector.md)
- [How Do I Download Pspdfkit As Fat Frameworks](/guides/ios/knowledge-base/how-do-i-download-pspdfkit-as-fat-frameworks.md)
- [Capture ink signatures using SignatureViewController](/guides/ios/knowledge-base/how-do-i-get-an-image-from-signatureviewcontroller.md)
- [Get notifications for unlocked password-protected PDFs](/guides/ios/knowledge-base/how-do-i-get-notified-when-a-password-protected-document-is-unlocked.md)
- [Other dependencies.](/guides/ios/knowledge-base/how-do-i-migrate-from-carthage-to-spm.md)
- [How Do I Migrate From Cocoapods To Spm](/guides/ios/knowledge-base/how-do-i-migrate-from-cocoapods-to-spm.md)
- [How Do I Present A Pspdftabbedviewcontroller In Cordova](/guides/ios/knowledge-base/how-do-i-present-a-pspdftabbedviewcontroller-in-cordova.md)
- [How to add annotations programmatically in iOS](/guides/ios/knowledge-base/how-do-i-programmatically-add-annotation-to-the-saved-annotations-list.md)
- [How Do I Remove The Sign Arrow From The Signature Form Field](/guides/ios/knowledge-base/how-do-i-remove-the-sign-arrow-from-the-signature-form-field.md)
- [Fix incorrect page color in night appearance mode](/guides/ios/knowledge-base/how-do-i-reset-custom-document-render-options-before-change-the-appearance-mode.md)
- [How Do I Select Or Deselect An Annotation Programmatically](/guides/ios/knowledge-base/how-do-i-select-or-deselect-an-annotation-programmatically.md)
- [Creating invisible digital signatures on iOS](/guides/ios/knowledge-base/invisible-signature.md)
- [Fixing library not found issues in iOS apps](/guides/ios/knowledge-base/library-not-found-swiftpm.md)
- [Block annotation editing and deletion in iOS](/guides/ios/knowledge-base/prevent-annotation-editing-allow-manipulation.md)
- [Processor Write To File Url](/guides/ios/knowledge-base/processor-write-to-file-url.md)
- [Search Special Characters](/guides/ios/knowledge-base/search-special-characters.md)
- [Separate Photo Library And Camera Actions](/guides/ios/knowledge-base/separate-photo-library-and-camera-actions.md)
- [Setting The Initial Page Selection When Sharing](/guides/ios/knowledge-base/setting-the-initial-page-selection-when-sharing.md)
- [Showing Annotation Tools In The Main Toolbar](/guides/ios/knowledge-base/showing-annotation-tools-in-the-main-toolbar.md)
- [How to store electronic signatures using Instant JSON](/guides/ios/knowledge-base/store-electronic-signatures-from-instant-json-annotations.md)
- [Suppressing File Coordination Alerts](/guides/ios/knowledge-base/suppressing-file-coordination-alerts.md)
- [Zoom to specific PDF annotations easily](/guides/ios/knowledge-base/zoom-to-specific-annotation.md)
- [Measure distance and area in a PDF on iOS](/guides/ios/measurements.md)
- [Configure measurements in a PDF on iOS](/guides/ios/measurements/configure-measurements.md)
- [Measure area in a PDF on iOS](/guides/ios/measurements/measure-area.md)
- [Measure distance in a PDF on iOS](/guides/ios/measurements/measure-distance.md)
- [Integrate OCR capabilities into your iOS app](/guides/ios/ocr/getting-started.md)
- [Supported languages for the iOS OCR library](/guides/ios/ocr/language-support.md)
- [iOS OCR library](/guides/ios/ocr/overview.md)
- [How to perform OCR on a PDF in iOS](/guides/ios/ocr/usage.md)
- [14 12](/guides/ios/releases/14-12.md)
- [26 1](/guides/ios/releases/26-1.md)
- [26 10](/guides/ios/releases/26-10.md)
- [26 11](/guides/ios/releases/26-11.md)
- [26 2](/guides/ios/releases/26-2.md)
- [26 3](/guides/ios/releases/26-3.md)
- [26 4](/guides/ios/releases/26-4.md)
- [26 5](/guides/ios/releases/26-5.md)
- [26 6](/guides/ios/releases/26-6.md)
- [26 7](/guides/ios/releases/26-7.md)
- [26 8](/guides/ios/releases/26-8.md)
- [26 9](/guides/ios/releases/26-9.md)
- [26](/guides/ios/releases/26.md)
- [Programatically create PDF annotations in Swift for iOS](/guides/ios/samples/add-annotations-to-pdf-programmatically.md)
- [Add copyright watermark to PDF in Swift for iOS](/guides/ios/samples/add-copyright-watermark-to-pdf.md)
- [Add a custom cloudy rectangle annotation to a PDF in Swift for iOS](/guides/ios/samples/add-custom-cloudy-rectangle.md)
- [Add file annotation to PDF in Swift for iOS](/guides/ios/samples/add-file-annotation-with-embedded-file.md)
- [Add image gallery to PDF in Swift for iOS](/guides/ios/samples/add-image-gallery-to-pdf.md)
- [Add an image signature to PDF in Swift for iOS](/guides/ios/samples/add-image-signature-to-pdf-programmatically.md)
- [Add an Apple Maps widget to a PDF page in Swift for iOS](/guides/ios/samples/add-map-widget-to-pdf.md)
- [Add text annotation to PDF in Swift for iOS](/guides/ios/samples/add-text-annotation-to-pdf.md)
- [Add video annotation to PDF in Swift for iOS](/guides/ios/samples/add-video-annotation-to-pdf.md)
- [Create an always-dark annotation toolbar in Swift for iOS](/guides/ios/samples/always-dark-annotation-toolbar.md)
- [Add analytics to PDF components in Swift for iOS](/guides/ios/samples/analytics.md)
- [Image annotations in Swift for iOS](/guides/ios/samples/annotate-images.md)
- [Add annotation buttons to PDF toolbar in Swift for iOS](/guides/ios/samples/annotation-buttons-in-navigation-bar.md)
- [Customize blend modes in stamp annotations in Swift for iOS](/guides/ios/samples/annotation-inspector-stamp-blend-mode.md)
- [Embed, flatten, or remove PDF annotations in Swift for iOS](/guides/ios/samples/annotation-processing.md)
- [Using a custom annotation provider in Swift for iOS](/guides/ios/samples/annotation-provider-with-rotation.md)
- [Write PDF annotations to XFDF in Swift for iOS](/guides/ios/samples/annotations-to-xfdf.md)
- [Creating effective link annotations on iOS](/guides/ios/samples/annotations.md)
- [Create a custom appearance stream generator in Swift for iOS](/guides/ios/samples/appearance-stream-generator.md)
- [Maintain annotation aspect ratio in Swift](/guides/ios/samples/aspect-ratio-conserving-resizing.md)
- [Asynchronously sign PDF in Swift for iOS](/guides/ios/samples/asynchronous-digital-signature-in-pdf.md)
- [Enable auto-save in PDF using Swift for iOS](/guides/ios/samples/auto-saving-pdf.md)
- [Aviation example: Displaying flight plan PDF in Swift for iOS](/guides/ios/samples/aviation.md)
- [Blur PDF page in Swift for iOS](/guides/ios/samples/blur-pdf-pages.md)
- [Collaborating on PDFs in board meetings using Swift for iOS](/guides/ios/samples/board-meeting.md)
- [Add calculator to PDF using JavaScript on iOS](/guides/ios/samples/calculator.md)
- [Embed Nutrient as a child view controller in Swift for iOS](/guides/ios/samples/child-view-controller-using-parent-navigation-bar.md)
- [Embed PDFViewController as a child in iOS](/guides/ios/samples/child-view-controller.md)
- [Present a confirmation sheet for iOS annotations](/guides/ios/samples/confirm-annotation-deletion.md)
- [Display building floor plans in iOS with Swift](/guides/ios/samples/construction.md)
- [Prepare PDF to capture digital signature in Swift for iOS](/guides/ios/samples/contained-digital-signatures.md)
- [Prepare PDF to embed PAdES digital signature in Swift for iOS](/guides/ios/samples/contained-pades-digital-signature.md)
- [PDFViewController controller state in Swift for iOS](/guides/ios/samples/controller-state.md)
- [Continiously create free text annotations in Swift for iOS](/guides/ios/samples/create-free-text-annotations-continuously.md)
- [Create link annotations in PDF using Swift for iOS](/guides/ios/samples/create-link-annotation-in-pdf.md)
- [Select PDF text and create a note in Swift for iOS](/guides/ios/samples/create-note-from-selection.md)
- [Create password-protected PDF in Swift for iOS](/guides/ios/samples/create-password-protected-pdf.md)
- [Create PDF bookmark with UI in Swift for iOS](/guides/ios/samples/create-pdf-bookmark-name-ui.md)
- [Create PDF programmatically in Swift for iOS](/guides/ios/samples/create-pdf-programmatically.md)
- [Custom annotation provider in Swift for iOS](/guides/ios/samples/custom-annotation-provider.md)
- [Clear all PDF annotations with a button in Swift for iOS](/guides/ios/samples/custom-button-in-annotation-toolbar.md)
- [Add custom font sizes to free text keyboard in Swift for iOS](/guides/ios/samples/custom-buttons-free-text-keyboard-toolbar.md)
- [Custom Comments Ui](/guides/ios/samples/custom-comments-ui.md)
- [Add a custom free text input accessory in Swift for iOS](/guides/ios/samples/custom-free-text-input-accessory.md)
- [Use a custom image picker controller in Swift for iOS](/guides/ios/samples/custom-image-picker-controller.md)
- [Customize annotation link border color in Swift for iOS](/guides/ios/samples/custom-link-border-color.md)
- [Customize PDF page lables in Swift for iOS](/guides/ios/samples/custom-page-label.md)
- [Custom PDF bookmark provider in Swift for iOS](/guides/ios/samples/custom-pdf-bookmark-provider.md)
- [Customize PDF outline in Swift for iOS](/guides/ios/samples/custom-pdf-outline-controller.md)
- [Customize PDF sharing options in Swift for iOS](/guides/ios/samples/custom-pdf-sharing-options.md)
- [Custom PDF stamp annotation in Swift for iOS](/guides/ios/samples/custom-pdf-stamp-annotations.md)
- [Customize pencil interactions on PDF using Swift for iOS](/guides/ios/samples/custom-pencil-interaction-action.md)
- [Customize the PDF search highlight color in Swift for iOS](/guides/ios/samples/custom-search-highlight-color.md)
- [Customize the search result cell in Swift for iOS](/guides/ios/samples/custom-search-result-cell.md)
- [Customize the annotation selection knobs in Swift for iOS](/guides/ios/samples/custom-selection-knobs.md)
- [Customize the filename of shared PDF in Swift for iOS](/guides/ios/samples/custom-sharing-filenames.md)
- [Customize PDF tab titles in Swift for iOS](/guides/ios/samples/custom-tabbed-bar-title.md)
- [Custom Thumbnail Page Label](/guides/ios/samples/custom-thumbnail-page-label.md)
- [Custom thumbnail PDF view filter in Swift for iOS](/guides/ios/samples/custom-thumbnail-view-controller-filter.md)
- [Customize vertical annotation toolbar in Swift for iOS](/guides/ios/samples/custom-vertical-annotation-toolbar.md)
- [Customize PDF annotation toolbar in Swift for iOS](/guides/ios/samples/customize-pdf-annotation-toolbar.md)
- [Customized note annotation view controller in Swift for iOS](/guides/ios/samples/customized-note-annotation-view-controller.md)
- [Customize the annotations list in Swift for iOS](/guides/ios/samples/customizing-annotation-list.md)
- [Customize PDF form appearance in Swift for iOS](/guides/ios/samples/customizing-pdf-form-appearance.md)
- [Disable PDF annotation editing in Swift for iOS](/guides/ios/samples/disable-annotation-editing.md)
- [Disable annotations reviews in PDF using Swift for iOS](/guides/ios/samples/disable-annotation-reviews.md)
- [Disable bookmark editing in PDF using Swift for iOS](/guides/ios/samples/disable-bookmark-editing.md)
- [Disable bookmark renaming in PDF using Swift for iOS](/guides/ios/samples/disable-bookmark-renaming.md)
- [How to disable digital signature removal in PDFs](/guides/ios/samples/disable-removing-digital-signature.md)
- [Disable scroll bouncing in PDF using Swift for iOS](/guides/ios/samples/disable-scroll-bouncing.md)
- [Display PDF in inbox directory using Swift for iOS](/guides/ios/samples/display-pdf-inbox.md)
- [Initialize a PDF with data in Swift for iOS](/guides/ios/samples/document-data-provider-pdf-from-data.md)
- [Implement a Document Picker sidebar in Swift for iOS](/guides/ios/samples/document-picker-sidebar.md)
- [Save reading position in PDF using Swift for iOS](/guides/ios/samples/document-view-state-restoration.md)
- [Document With Original Url Set](/guides/ios/samples/document-with-original-url-set.md)
- [Draw all PDF annotations as overlays in Swift for iOS](/guides/ios/samples/draw-annotations-as-overlay.md)
- [Add watermark to all PDF pages using Swift for iOS](/guides/ios/samples/draw-watermark-on-pdf-pages.md)
- [Customize PDF view margins using Swift for iOS](/guides/ios/samples/dynamic-margins.md)
- [LMS example: Take and grade an exam using Swift for iOS](/guides/ios/samples/e-learning.md)
- [Configuring PDF reader in Swift for iOS](/guides/ios/samples/e-reader.md)
- [Apply XFDF annotations and save it as new PDF in Swift for iOS](/guides/ios/samples/embedded-xfdf-annotation-provider.md)
- [Encrypt and decrypt a PDF using Swift for iOS](/guides/ios/samples/encrypt-decrypt-pdf.md)
- [Encrypt disk cache when rendering PDF in Swift for iOS](/guides/ios/samples/encrypted-cache.md)
- [Encrypted Xfdf Annotation Provider](/guides/ios/samples/encrypted-xfdf-annotation-provider.md)
- [Exit PDF drawing mode automatically in Swift for iOS](/guides/ios/samples/exit-drawing-mode-automatically.md)
- [Face redaction in document using Swift for iOS](/guides/ios/samples/face-redaction-in-pdf.md)
- [Fixed-sized PDF stamp annotations in Swift for iOS](/guides/ios/samples/floating-pdf-stamp-annotation.md)
- [Allow freeform image annotation resizing in Swift for iOS](/guides/ios/samples/freeform-image-resize.md)
- [Add video, audio, image annotation to PDF in Swift for iOS](/guides/ios/samples/gallery.md)
- [Generate a PDF report using Swift for iOS](/guides/ios/samples/generate-pdf-report.md)
- [Hide or reveal an area in a PDF using Swift for iOS](/guides/ios/samples/hide-reveal-area-in-pdf.md)
- [PDF highlight annotation blend mode menu in Swift for iOS](/guides/ios/samples/highlight-annotation-blend-mode-menu.md)
- [Highlight text in PDF using Swift for iOS](/guides/ios/samples/highlight-text-in-pdf.md)
- [Convert HTML to PDF using Swift for iOS](/guides/ios/samples/html-to-pdf.md)
- [Insert page into PDF from another document in Swift for iOS](/guides/ios/samples/insert-pdf-page-from-document.md)
- [Add a bottom inset to the user interface in Swift for iOS](/guides/ios/samples/inset-user-interface.md)
- [Using Instant JSON to collaborate on PDFs in Swift for iOS](/guides/ios/samples/instant-json.md)
- [Customize comment font size in PDF using Swift for iOS](/guides/ios/samples/large-font-for-comments.md)
- [Lazy load PDF annotations in Swift for iOS](/guides/ios/samples/lazy-load-pdf-annotations.md)
- [Link annotation view customization in Swift for iOS](/guides/ios/samples/link-annotation-view-customization.md)
- [Configure PDF annotation toolbar using Swift for iOS](/guides/ios/samples/manual-toolbar-setup.md)
- [Display measurements on PDF pages or spreads in Swift for iOS](/guides/ios/samples/measurements-on-pages-spreads.md)
- [Monitor UI touches using Swift for iOS](/guides/ios/samples/monitor-touches.md)
- [Multi-user PDF collaboration using Swift for iOS](/guides/ios/samples/multi-user-pdf-collaboration.md)
- [Configuring multiline titles in PDF using Swift for iOS](/guides/ios/samples/multiline-pdf-title.md)
- [OCR PDF using Swift for iOS](/guides/ios/samples/ocr-pdf.md)
- [Convert MS Office (DOCX, XLSX, PPTX) to PDF in Swift for iOS](/guides/ios/samples/office-to-pdf-conversion.md)
- [Open AES-encrypted PDF in Swift for iOS](/guides/ios/samples/open-aes-encrypted-pdf.md)
- [Add overlay views to PDF in Swift for iOS](/guides/ios/samples/overlay-views.md)
- [Custom PDF page labels in the sharing UI in Swift for iOS](/guides/ios/samples/page-labels-in-sharing-ui.md)
- [Cycle through PDF documents using Swift for iOS](/guides/ios/samples/page-view-controller.md)
- [Password Not Preset](/guides/ios/samples/password-not-preset.md)
- [Display PDF annotations on layers in Swift for iOS](/guides/ios/samples/pdf-annotation-layers.md)
- [PDF collaboration using Swift for iOS](/guides/ios/samples/pdf-collaboration.md)
- [Compare PDF documents using Swift for iOS](/guides/ios/samples/pdf-document-comparison.md)
- [Show PDF download progress in Swift for iOS](/guides/ios/samples/pdf-download-progress.md)
- [Custom saving options after editing PDF in Swift for iOS](/guides/ios/samples/pdf-editor-custom-saving-confirmation.md)
- [Custom page template in PDF editor using Swift for iOS](/guides/ios/samples/pdf-editor-custom-templates.md)
- [Customize PDF editor toolbar using Swift for iOS](/guides/ios/samples/pdf-editor-toolbar-customization.md)
- [Toggle PDF form field highlight color in Swift for iOS](/guides/ios/samples/pdf-form-highlight-color.md)
- [PDF form examples using Swift for iOS](/guides/ios/samples/pdf-forms.md)
- [PDF magazine reader using Swift for iOS](/guides/ios/samples/pdf-magazine-reader.md)
- [Render drawings on PDF pages using Swift for iOS](/guides/ios/samples/pdf-page-drawing.md)
- [PDF page scale and resize using Swift for iOS](/guides/ios/samples/pdf-page-scaling.md)
- [PDF reflow with Reader View in Swift for iOS](/guides/ios/samples/pdf-reader-view.md)
- [Redact text in PDF using Swift for iOS](/guides/ios/samples/pdf-redaction.md)
- [Create PDF teleprompter using Swift for iOS](/guides/ios/samples/pdf-teleprompter.md)
- [Customize PDF view settings in Swift for iOS](/guides/ios/samples/pdf-view-settings.md)
- [Persist view settings using Swift for iOS](/guides/ios/samples/persist-view-settings.md)
- [Getting started with iOS playground](/guides/ios/samples/playground.md)
- [Display PDFViewController in popover using Swift for iOS](/guides/ios/samples/popover-presentation.md)
- [Create email snippet when sharing PDF in Swift for iOS](/guides/ios/samples/predefined-email-body.md)
- [Customize iOS annotation inspector color presets](/guides/ios/samples/preset-customization.md)
- [Open PDF with preset password using Swift for iOS](/guides/ios/samples/preset-pdf-passwords.md)
- [Printer defaults for PDF annotations in Swift for iOS](/guides/ios/samples/printer-defaults.md)
- [Programmatically edit PDFs using Swift for iOS](/guides/ios/samples/programmatic-pdf-editing.md)
- [Programmatically go to PDF outline in Swift for iOS](/guides/ios/samples/programmatically-go-to-outline.md)
- [PDF text redaction using regex in Swift for iOS](/guides/ios/samples/redact-pdf-text-using-regex.md)
- [Download PDF from URL using Swift for iOS](/guides/ios/samples/remote-document-url.md)
- [Remove password from PDF using Swift for iOS](/guides/ios/samples/remove-pdf-password.md)
- [Rotate PDF pages with Swift](/guides/ios/samples/rotate-page-temporarily.md)
- [Rotate PDF page using Swift for iOS](/guides/ios/samples/rotate-pdf-page.md)
- [Auto-save PDF annotation changes in Swift for iOS](/guides/ios/samples/save-as-pdf.md)
- [Enable saving confirmation when exiting PDF in Swift for iOS](/guides/ios/samples/save-confirmation.md)
- [Customize view controller for screen mirroring in Swift for iOS](/guides/ios/samples/screen-mirroring.md)
- [Customize scrubber bar with buttons using Swift for iOS](/guides/ios/samples/scrubber-bar-with-buttons.md)
- [Search and redact text in a PDF using Swift for iOS](/guides/ios/samples/search-and-redact-pdf-text.md)
- [Search multiple PDF files using Swift for iOS](/guides/ios/samples/search-multiple-pdf-files.md)
- [Programtically search a PDF using Swift for iOS](/guides/ios/samples/search-without-controller.md)
- [Select all text in a PDF using Swift for iOS](/guides/ios/samples/select-all-pdf-text.md)
- [Select free text annotation in PDF using Swift for iOS](/guides/ios/samples/select-free-text-annotations.md)
- [Show author name on annotation selection in Swift for iOS](/guides/ios/samples/show-author-name-on-annotation-selection.md)
- [Show multiple files as a single PDF using Swift for iOS](/guides/ios/samples/show-multiple-files-in-pdf.md)
- [Show note controller for highlights in Swift for iOS](/guides/ios/samples/show-note-controller-for-highlights.md)
- [Programmatically add a signature to all PDF pages using Swift for iOS](/guides/ios/samples/sign-all-pdf-pages.md)
- [Simplifying the annotation inspector using Swift for iOS](/guides/ios/samples/simple-annotation-inspector.md)
- [Simplifying the font picker for text annotation using Swift for iOS](/guides/ios/samples/simple-font-picker.md)
- [Add a snake game inside a PDF in Swift for iOS](/guides/ios/samples/snake.md)
- [Convert stamp into a PDF button in Swift for iOS](/guides/ios/samples/stamp-button.md)
- [Sticky header for PDF thumbnail view in Swift for iOS](/guides/ios/samples/sticky-header.md)
- [Store PDF annotations for multiple users in Swift for iOS](/guides/ios/samples/store-multiple-user-annotations.md)
- [Integrate UIStoryboard with PDFViewController in Swift for iOS](/guides/ios/samples/storyboard.md)
- [PDF streaming with SwiftUI for iOS](/guides/ios/samples/streaming-pdf-swiftui.md)
- [PDF streaming using Swift for iOS](/guides/ios/samples/streaming-pdf.md)
- [Customize PDF annotation toolbar with SwiftUI for iOS](/guides/ios/samples/swiftui-annotationt-toolbar.md)
- [Custom annotation inspector with SwiftUI for iOS](/guides/ios/samples/swiftui-custom-annotation-inspector.md)
- [Create a custom PDF navigation bar with SwiftUI for iOS](/guides/ios/samples/swiftui-custom-navigation-bar.md)
- [Embed a SwiftUI view inside a page view on iOS](/guides/ios/samples/swiftui-on-page-view.md)
- [Create a custom PDF page setting view in SwiftUI for iOS](/guides/ios/samples/swiftui-settings.md)
- [Swiftui Sharing](/guides/ios/samples/swiftui-sharing.md)
- [Add SwiftUI sidebar next to PDF view on iOS](/guides/ios/samples/swiftui-sidebar.md)
- [SwiftUI split screen: Display two PDF views side by side on iOS](/guides/ios/samples/swiftui-split-screen.md)
- [Use PDFViewController with SwiftUI for iOS](/guides/ios/samples/swiftui.md)
- [Show multiple PDFs with tabbed UI using Swift for iOS](/guides/ios/samples/tabbed-bar.md)
- [Show or hide PDF annotations using Swift for iOS](/guides/ios/samples/toggle-annotation-visibility.md)
- [Enable fixed PDF toolbar position in Swift for iOS](/guides/ios/samples/top-toolbar-position.md)
- [Update configuration when rotating PDF in Swift for iOS](/guides/ios/samples/update-configuration-when-rotating.md)
- [Import and export annotations in XFDF using Swift for iOS](/guides/ios/samples/xfdf-annotation-provider.md)
- [PDF search library for iOS](/guides/ios/search.md)
- [iOS PDF signature library](/guides/ios/signatures.md)
- [Add signature fields to PDFs on iOS](/guides/ios/signatures/add-a-signature-field.md)
- [Fill and sign a PDF form on iOS](/guides/ios/signatures/fill-and-sign-forms.md)
- [Understanding electronic and digital signatures](/guides/ios/signatures/overview.md)
- [How to add electronic signatures to PDFs on iOS](/guides/ios/signatures/adding-an-electronic-signature.md)
- [Save and store electronic signatures on iOS](/guides/ios/signatures/signature-storage.md)
- [eSign PDFs with a certificate on iOS](/guides/ios/signatures/using-electronic-signatures-and-digital-signatures-together.md)
- [Understanding digital signature validation states](/guides/ios/signatures/troubleshooting/chain-of-certs-not-valid.md)
- [Troubleshooting](/guides/ios/troubleshooting.md)
- [Advanced Symbolication](/guides/ios/troubleshooting/advanced-symbolication.md)
- [App Store Submissions](/guides/ios/troubleshooting/app-store-submissions.md)
- [Efficient bug reporting for SDK applications](/guides/ios/troubleshooting/bug-reporting.md)
- [Removing Architectures](/guides/ios/troubleshooting/removing-architectures.md)
- [Print Button Is Not Showing Up In The Toolbar](/guides/ios/troubleshooting/print-button-is-not-showing-up-in-the-toolbar.md)
- [Split View Controller](/guides/ios/troubleshooting/split-view-controller.md)
- [Transparent Bar Backgrounds](/guides/ios/troubleshooting/user-interface/transparent-bar-backgrounds.md)
- [Dealing With Exceptions](/guides/ios/usage-issues/dealing-with-exceptions.md)