---
title: "Document processing and editing server — Automate workflows"
canonical_url: "https://www.nutrient.io/guides/document-engine/editor/"
md_url: "https://www.nutrient.io/guides/document-engine/editor.md"
last_updated: "2026-06-08T17:11:05.477Z"
description: "Explore the ultimate guide to document editing with Nutrient. Learn how to unleash the full potential of your documents with expert tips and techniques."
---

# Document processing and editing server

Document Engine offers developers a robust API for programmatic editing of PDF documents, as well as integration with our client-side SDKs for viewing PDFs.

## Essential guides

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**Architecture diagram**

Learn what happens to a document when it’s edited

[Read more](https://www.nutrient.io/guides/document-engine/editor/architecture-diagram.md)

---

**Watermark**

How to apply an irremovable, transparent annotation to a document

[Read more](https://www.nutrient.io/guides/document-engine/editor/watermark.md)

---

**Merge or combine**

How to merge multiple PDF documents together

[Read more](https://www.nutrient.io/guides/document-engine/editor/merge-or-combine.md)

---

**Add pages**

How to add a blank page to a PDF document

[Read more](https://www.nutrient.io/guides/document-engine/editor/add-page.md)

---

**Change the page label**

How to set the label for any page in a PDF document

[Read more](https://www.nutrient.io/guides/document-engine/editor/page-label.md)

---

**Password protect**

How to  protect a PDF document with a password

[Read more](https://www.nutrient.io/guides/document-engine/editor/password-pdfs.md)

## Page manipulation guides

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**Rotate pages**

How to rotate pages by a desired amount

[Read more](https://www.nutrient.io/guides/document-engine/editor/page-manipulation/rotate.md)

---

**Duplicate pages**

How to duplicate pages within a PDF document

[Read more](https://www.nutrient.io/guides/document-engine/editor/page-manipulation/duplicate.md)

---

**Move or rearrange pages**

How to move or rearrange pages within a PDF document

[Read more](https://www.nutrient.io/guides/document-engine/editor/page-manipulation/move-or-rearrange.md)

---

**Remove pages**

How to split a PDF into two or more documents

[Read more](https://www.nutrient.io/guides/document-engine/editor/page-manipulation/remove.md)

**Call to Action**

Start your free trial for unlimited access and expert support.

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

---

## Related pages

- [Architecture diagram](/guides/document-engine/editor/architecture-diagram.md)
- [Merge multiple PDF files](/guides/document-engine/editor/merge-or-combine.md)
- [Add pages to PDFs](/guides/document-engine/editor/add-page.md)
- [Changing PDF page numbers or labels](/guides/document-engine/editor/page-label.md)
- [Password protect PDFs](/guides/document-engine/editor/password-pdfs.md)
- [Add watermarks to PDFs](/guides/document-engine/editor/watermark.md)

## Pages in this section

- [Duplicate PDF pages](/guides/document-engine/editor/page-manipulation/duplicate.md)
- [Rotate PDF pages](/guides/document-engine/editor/page-manipulation/rotate.md)
- [Move or rearrange PDF pages](/guides/document-engine/editor/page-manipulation/move-or-rearrange.md)
- [Remove pages from PDFs](/guides/document-engine/editor/page-manipulation/remove.md)