Cross-Platform Word File Processing

Generate and process Microsoft Word documents across multiple platforms and operating systems. DevExpress .NET Word Document API supports the following platforms and operating systems:

  • Windows, Linux, MacOS
  • Azure, Docker
  • .NET 6 / .NET Framework 4.5.2+
  • .NET Core 2.1+ / NET Core 3.0+ / .NET Standard 2.0+

Install NuGet Packages (.NET Core)

Cross-Platform Word Document Processing - Office File API | DevExpress

Supported File Formats

The Word Document API allows you to create document processing/document generation solutions with ease. It supports nearly all Microsoft Word document formats including:

  • TXT, RTF
  • OpenDocument (ODT)
  • WordML
  • XML
Supported File Formats - Office File API | DevExpress

Supported Word Doc Elements

Our Word API library supports a massive range of document formatting elements including:

  • Paragraphs and Sections
  • Lists (Bulleted, Numbered, Multilevel)
  • Bookmarks, Hyperlinks
  • Tables
  • Table of Contents
  • Fields / Placeholders
  • Text Boxes, Checkboxes
  • Shapes, Images, OLE Objects
  • Headers and Footers
  • Footnotes and Endnotes
  • Comments
  • Custom XML
  • Document Properties
Supported Word Doc Elements - Office File API | DevExpress

Print. Convert DOC to PDF or Image

Printing a Word document has never been easier. You can configure printer settings and print your document with a simple method call or use a Print Dialog integrated into DevExpress Rich Text Editors (if using our UI controls). You can customize page range, number of copies, paper size, orientation, and other relevant page settings.

And yes, our Word Document API includes everything you need to convert documents from one format to another, be it PDF or Image formats (PNG, JPEG, BMP, TIFF, EMF, WMF, GIF). You can also convert your rich text documents to accessible PDF files that conform PDF/A-1a, PDF/A-2a, PDF/A-3a, and PDF/UA standards.

How to convert documents (DOCX, XLSX, PDF) within Blazor Server Apps

See Demo

Print. Convert to PDF or an Image - Office File API | DevExpress

Word Mail Merge

The Word API ships with built-in Mail Merge support. This feature allows you to automatically generate a batch of documents based on a single document template and instantly address a variety of usage scenarios within an enterprise - from automated form letter generation to the printing of product catalogs (and everything in between).

See Demo

Word Mail Merge - Office File API | DevExpress

Merge/Split Word Documents

With the DevExpress .NET Document API, you can easily combine multiple Microsoft Word documents into one. You can also split a document or extract its content across multiple files.

Merge/Split Word Documents - Office File API | DevExpress

Find & Replace Text

With our Word Document API, you can quickly locate and replace text in Word documents. You can search for specific text string or specify a regular expression. Our Search API allows you to specify search direction, make your search case-sensitive, etc.

See Demo

Find and Replace Text - Office File API | DevExpress

Text Formatting & Hyphenation

Word Document API includes the following formatting options:

  • Character and Paragraph Formatting
  • Document Styles
  • Word Hyphenation
  • Right-to-Left (RTL) Support
Text Formatting and Hyphenation - Office File API | DevExpress

Track Document Changes

Track Changes support allows you to retain a history of edits made to a document. With this feature, you can obtain, accept or reject changes made to a document (DOCX, DOC, RTF, WordML, HTML). Documents - along with their revisions - can be printed and exported to PDF as needed. Our Track Changes API allows you to execute the following actions:

  • Manage Existing Revisions
  • Create New Revisions
  • Specify Display Options for Revisions
Track Document Changes - Office File API | DevExpress

Protect Word Documents

With our .NET Document API, you can quickly password-protect your Word documents and prevent unauthorized use. Security options include:

  • Restrict Document Modification
  • Encrypt a Document with a Password
  • Grant User Permissions
  • Electronically Sign Microsoft Word Documents

See Demo

Protect Word Documents - Office File API | DevExpress

DevExpress Rich Text Editors (RTF)

Embed Word UI into your desktop and web apps.

From DOC to DOCX and everything in between, the DevExpress Rich Text Editors ship with everything you'll need to quickly incorporate advanced text editing functionality in your next desktop and web application.

Our RTF Editors ship with a rich collection of end-user options so you can deliver Microsoft Word-inspired functionality with ease. If your app requires a full document processing user interface (if you need to introduce a Word-inspired UX into your app), please refer to the following web pages for more information on our Rich Text Editors:

DevExpress Rich Text Editors (RTF) - Office File API | DevExpress

Newest Office File API & Word API Features

for the .NET, .NET Core, Visual Studio 2022

Our goal is perfection and thanks to feedback from our loyal users, we continue to improve the capabilities of our Word Document API.
See what we've been up to in the recent release cycle.

RC4 CryptoAPI Encryption - Word Document API | DevExpress

RC4 CryptoAPI Encryption

DevExpress Word Processing Document API can import and export RC4 CryptoAPI encrypted DOC files. RC4 CryptoAPI is now the default encryption method for binary files if you use the Strong encryption type to encrypt your documents.

Charts - Word Document API | DevExpress


Our Word Processing Document API can now display, print, and export (to PDF) documents with charts. You can also use our Spreadsheet Chart API to create 2D/3D charts in code, apply chart styles, and format individual chart elements.

Watermarks - Word Document API | DevExpress


You can now import and export documents with watermarks. Watermarks are displayed, printed, and exported to PDF. Word File API allows you to insert picture and text watermarks, specify watermark options, or remove existing watermarks from a document.


Free 30-Day TrialSee What's New

Office File API & Word API News

Generate Accessible PDF Files

Our most recent release includes enhanced PDF export options for our Spreadsheet and Word Processing. You can now convert your spreadsheet and rich text documents to accessible PDF files.

Digital Signatures in Office Documents

As of our last major release, our Office File API offers support for digital signatures. You can now electronically sign Microsorf Word, Excel, and PowerPoint documents.


OLE Objects

As you may already know, our Word Processing File API supports OLE objects. OLE technology allows you to insert data (spreadsheets, images, charts, etc.) from external applications into your document.


More News

Supported IDEs

Review the list of development tools and frameworks supported by our products. We strongly recommend that you always download and use the most recent versions. If the latest version does not support the IDE or framework that you're using, please write to us at and request the an evaluation version that suits your requirements.

Release Date
Supported Frameworks
.NET 6
.NET 5
.NET Core 3.0+
.NET Framework 4.5.2+
.NET Standard 2.0+
.NET 6
.NET 5
.NET Core 3.0+
.NET Framework 4.5.2+
.NET Standard 2.0+
.NET Framework 4.0+
.NET Framework 4.5
.NET Framework 4.0
.NET Framework 3.5
Supported IDE
Visual Studio 2022
Visual Studio 2019
Visual Studio 2017
Visual Studio 2015
Visual Studio 2022
Visual Studio 2019
Visual Studio 2017
Visual Studio 2015
Visual Studio 2013
Visual Studio 2012
Visual Studio 2019
Visual Studio 2017
Visual Studio 2015
Visual Studio 2013
Visual Studio 2012
Visual Studio 2010
Visual Studio 2013
Visual Studio 2012
Visual Studio 2010
Visual Studio 2008

Frequently Asked Questions

Is Microsoft Office required for the DevExpress Word Processing Document API?

No, you do not need a copy of Microsoft Office to generate DOC, DOCx files.

What can I do with the DevExpress Word Processing Document API?

You can manage and modify text documents through files, streams and byte arrays. You can print and export DOC/DOCx to PDF, merge or split documents, generate new documents using templates, modify content, protect documents with passwords and digital signatures, and convert documents to different rich text & image file formats.

Does the Word Processing Document API support .NET Core?

Yes. It supports .NET Core 2.1+ / NET Core 3.0+ / .NET Standard 2.0+. Our Word Processing file API is also compatible with .NET 5. The DevExpress Word Processing file generation API works in apps that run on Windows, Linux, and MacOS. You can even deploy your apps on Azure.

How do I get started with the Word Processing Document API?

Best in Class Tools

DevExpress is honored to have been voted best in class 20 times in this year's Visual Studio Magazine Reader's Choice Awards.

Experience the DevExpress difference and see why your peers consistently vote our products #1. With our Universal Subscription, you will build your best, see complex software with greater clarity, increase your productivity and create stunning applications for Windows, Web and your Mobile world.


60 Day Unconditional Money Back Guarantee

We are so confident in our products and services that we back them with a 60 day no questions asked money back guarantee. If within the first 60 days of ownership you are not satisfied with the capabilities of our tools, you can request a full refund of the amount you paid to DevExpress by writing to or by calling +1 (818) 844-3383.

Best Value
WinForms Controls
DirectX Form
WPF Controls
Blazor UI Components
Grid Layout
Stack Layout
JavaScript - jQuery, Angular, React, Vue
ASP.NET Web Forms Controls
Printing & Exporting
ASP.NET MVC Extensions
Printing & Exporting
ASP.NET MVC Client-Side Controls
ASP.NET Core Controls
ASP.NET Core Office Controls
ASP.NET Bootstrap Controls
Themes and Skinning
WinForms Document Viewer
WinForms End-User Report Designer
ASP.NET Web Forms Document Viewer
ASP.NET Web Forms End-User Report Designer
ASP.NET MVC Document Viewer
ASP.NET MVC End-User Report Designer
ASP.NET Core Document Viewer
ASP.NET Core End-User Report Designer
Blazor Document Viewer
Blazor End-User Report Designer
WPF Document Viewer
WinUI Document Viewer
WPF End-User Report Designer
Angular Document Viewer
Angular End-User Report Designer
XPO - ORM Library
Office File API (Basic)
.NET Standard 2.0+ Support (Windows, Linux, MacOS)
Office File API (Complete)
.NET Standard 2.0+ Support (Windows, Linux, MacOS)
Business Intelligence Dashboard
XAF - Cross-Platform .NET App UI
.NET App Security & Web API Service
Entity Framework Core ORM Support
XPO ORM Support
Role-based Access Control & Permission Management
ASP.NET Core Web API / OData Service for CRUD and Authorization
Administrative UI to Manage Users and Roles at Runtime
Localization Service Endpoints
Xamarin.Forms UI Controls with Support
.NET MAUI Controls with Support
.NET MAUI Project Templates
CodeRush for Visual Studio
VS 2022 Support
VS 2019 Support
VS 2017 Support
VS 2015 Support
Source Code *
WinForms Controls
ASP.NET Controls
WPF Controls
JavaScript - jQuery, Angular, React
Blazor UI Components
XPO - ORM Library
Office File API
Data Visualization Dashboard
XAF - Cross-Platform .NET App UI
Technical Support
Priority Support

* DevExpress does not include/ship source code for certain products, including CodeRush, TestCafe Studio, and Report & Dashboard Server.

Start your free 30-day trial today!

Download our fully-functional 30-day trial today and
experience the DevExpress difference today.


Download Free Trial