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The Syncfusion UWP Word library (Essential DocIO) offers powerful and comprehensive APIs to merge or combine multiple Word documents into a single Word document with few lines of code. It also allows splitting a large Word document into multiple smaller documents programmatically.

Merge Multiple Word Documents into a Single Document

Easily merges or combines multiple Word documents into a single document with several formatting options. Also, allows converting the merged document to HTML, ODT and EPUB.

Merge with Original Formatting

Merges the contents from multiple Word documents, retaining the original formatting in the merged document.

Merge with Destination Formatting

Merges the entire content from a Word document by applying the formatting of the destination document.

Merge with Numbering Restart Options

Merges the entire contents from a Word document by either restarting or continuing the list numbering.

Merge Text alone

Merges the text alone from multiple Word documents without copying the format, headers, and footers.

Import a Part of Document

Imports a part of a document and merges it into an existing document.

Split Large Document into Multiple Documents

Easily splits the contents of a large Word document into multiple small Word documents programmatically using powerful and comprehensive APIs of Syncfusion UWP Word library (Essential DocIO). Also, allows splitting HTML, RTF and Text files.

Split by Section

Iterates the document content by section and saves each section as an individual Word document.

Split by Headings

Extracts the content of a heading in the Word document by iterating the document contents and saving the extracted content as an individual Word document.

Split using Placeholder Text

Extracts a part of a document based on placeholder text and saves the extracted content as an individual Word document.

Split by Bookmark

Navigates to a bookmark in the document and retrieves the bookmark content as a separate Word document.


File Formats
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$ 2,495

Per developer 1st year

Includes 1,600+ Controls
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Unlimited Global License

Cover everyone in your organization for one low annual fee


File Formats

$ 995

Per developer 1st year

  • 65+ Components each for JavaScript, Angular, jQuery, React, and Vue.
  • 75+ ASP.NET Web Forms Controls
  • 70+ Blazor Components
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  • 70+ ASP.NET Core Controls
  • File Formats (Word, Excel, PowerPoint and PDF) Tool tip information icon
  • Report Viewer SDK
  • 15+ WinUI Controls
  • 155+ Xamarin Controls *Includes iOS, Android and UWP
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  • 70+ UWP Controls
  • 60+ PHP Controls
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  • 1 year
File Formats
Developer Platform
Unlimited Global License



Syncfusion’s file format components helped me create the reports I needed, fast. – J. Pereira, Software Developer.

The libraries have been built from scratch and refined for more than a decade to provide blazing-fast performance, comprehensive API, and compatibility across the latest and older versions of these files.

CONTINUE READING View all Customer Stories


Syncfusion File Format Libraries - Manipulate Excel, Word, PowerPoint, and PDF files

Read and write Excel, Word, PDF, and PowerPoint files. Also includes integrated visualization capabilities. Advanced features include support for pivot tables, pivot charts, mail-merge, and extensive formatting.


Succinctly Series: Statistics Using Excel Succinctly

Succinctly Series: Statistics Using Excel Succinctly

- by Charles Zaiontz


Greatness—it’s one thing to say you have it, but it means more when others recognize it. Syncfusion is proud to hold the following industry awards.

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