--- title: "Swift PDF viewer library: Fast and easy integration | Nutrient" canonical_url: "https://www.nutrient.io/guides/ios/viewer/swift/" md_url: "https://www.nutrient.io/guides/ios/viewer/swift.md" last_updated: "2026-05-30T02:20:01.337Z" description: "Start your free trial for unlimited access and expert support. for Nutrient iOS SDK." --- # Swift PDF viewer library Nutrient iOS SDK includes a high-fidelity PDF rendering engine that’s fast, precise, and feature rich. It offers developers a way to quickly embed a highly configurable PDF viewer in any iOS application. ## Key capabilities - **Customizable UI** — Hide or add buttons, and match your look and feel - **Page modes and transition** — Single or double, multiple scroll modes - **Thumbnails** — Resizable view shows page numbers or labels - **Outline** — Supports all custom variants and PDF action types - **Bookmarks** — Users can add, remove, and sort bookmarks - **Dark mode** — Choose between bright and dark themes - **Reader mode** — Reflow text to present it in a single-column view - **PNG and JPG** — Open images in the viewer (in addition to PDFs) - **Extendable** — Add annotation, signing, forms, and more ## PDF viewer guides **[Page transition](https://www.nutrient.io/guides/ios/customizing-the-interface/document-presentation-options.md)** How to configure page transition, scroll direction, and scroll mode **[Page navigation](https://www.nutrient.io/guides/ios/getting-started/document-interactions.md)** How to programmatically scroll to different pages **[Reader View](https://www.nutrient.io/guides/ios/features/reader-view.md)** How to reflow text for an easy-to-read, single-column view **[Night appearance](https://www.nutrient.io/guides/ios/customizing-the-interface/appearance-mode-manager.md)** How to render PDFs in color-correct night mode **[Right-to-left](https://www.nutrient.io/guides/ios/miscellaneous/page-bindings.md)** How to bind pages to the right edge for right-to-left scripts **[Multiple windows](https://www.nutrient.io/guides/ios/features/multiple-windows.md)** How to show documents in multiple windows **[User interactions](https://www.nutrient.io/guides/ios/customizing-the-interface/handling-user-interactions.md)** How to customize the way user interactions are handled **[Text selection](https://www.nutrient.io/guides/ios/features/text-selection.md)** How to configure text selection **[Keyboard shortcuts](https://www.nutrient.io/guides/ios/features/keyboard-shortcuts.md)** Learn about supported keyboard shortcuts **[Trackpad and mouse](https://www.nutrient.io/guides/ios/features/trackpad-and-mouse-support.md)** How to optimize your app for indirect input mechanisms **[Zooming](https://www.nutrient.io/guides/ios/miscellaneous/zooming.md)** How to programmatically manage the zoom scale **[Drag and drop](https://www.nutrient.io/guides/ios/features/drag-and-drop.md)** How to configure drag-and-drop interactions **[Embedded files](https://www.nutrient.io/guides/ios/features/embedded-files.md)** How to preview and open embedded files **[View state](https://www.nutrient.io/guides/ios/view-management/store-load-view-state.md)** Learn about concepts behind `PDFViewState` and how it’s used **[Accessibility features](https://www.nutrient.io/guides/ios/viewer/accessibility/features.md)** Learn how Nutrient supports various accessibility requirements **[Text-to-speech](https://www.nutrient.io/guides/ios/features/text-to-speech.md)** How to configure the text-to-speech feature **[Rendering PDF pages](https://www.nutrient.io/guides/ios/getting-started/rendering-pdf-pages.md)** How to render a page or part of a page as an image **[Rendering PDF forms](https://www.nutrient.io/guides/ios/viewer/rendering/pdf-forms.md)** How to disable form interactions **[Coordinate space](https://www.nutrient.io/guides/ios/faq/coordinate-spaces.md)** How to convert to and from the PDF coordinate space **[Annotation rendering](https://www.nutrient.io/guides/ios/getting-started/rendering-annotations.md)** How to render PDF annotations **[Font rendering](https://www.nutrient.io/guides/ios/features/custom-fonts.md)** How to configure custom fonts for rendering PDF documents **[Image viewer](https://www.nutrient.io/guides/ios/viewer/images.md)** How to display images in the viewer **[PDF JavaScript support](https://www.nutrient.io/guides/ios/features/javascript.md)** How to enable PDF JavaScript support **[Permissions](https://www.nutrient.io/guides/ios/features/document-permissions.md)** Learn about the document permissions that can be set **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 - [Embedded files and PDF portfolio collections](/guides/ios/features/embedded-files.md) - [Customizing page navigation in our iOS viewer](/guides/ios/getting-started/document-interactions.md) - [Enhance your PDF workflow with JavaScript support](/guides/ios/features/javascript.md) - [Configuring scroll directions and page transitions in our viewer](/guides/ios/customizing-the-interface/document-presentation-options.md) - [iOS image viewer library](/guides/ios/viewer/images.md) - [iOS PDF viewer library](/guides/ios/viewer.md) - [Configure permissions for iOS PDF viewer](/guides/ios/features/document-permissions.md) - [Troubleshooting](/guides/ios/viewer/troubleshooting.md) - [visionOS AR/VR PDF viewer](/guides/ios/viewer/visionos.md) - [Display PDFs with the view state on iOS](/guides/ios/view-management/store-load-view-state.md)