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Blazing Fast Performance

Optimized for a server environment where speed and low memory usage are critical. It works much faster and consumes less memory when compared to Office automation libraries.

Supported File Formats

Read and write files based on all popular Word file format variants like DOC, DOT, DOCM, DOTM, DOCX, DOTX, HTML, RTF, TXT, and XML (WordML). It is also possible to convert Word documents to ODT files.

.NET Standard Compliant

Compliant with .NET Standard 1.2. This library can be used in .NET Core, Xamarin, and .NET Framework applications.

Key Features

Wide Support for Document Elements

DocIO provides support for the most common elements in a Word document such as text, images, tables, hyperlinks, bookmarks, text boxes, content controls, sections, headers/footers, comments, watermarks, and more.

Advanced Mail Merge

Users can visually design reports in Microsoft Word and then populate the documents with data from various data sources, such as string arrays, XML, business objects, dynamic objects, and more.

Rich Formatting Options

DocIO provides support for all formatting options supported by Microsoft Word such as bold, italic, subscript, superscript, text color, highlight color, font, paragraph alignment, indentation, and more.


DocIO allows the application of predefined and custom styles to paragraphs. It also supports applying predefined table styles.

Bullets and Numbering

Create and manipulate bullets and numbering ranging from single level to multilevel as in Microsoft Word.

Cloning and Merging

Merge multiple documents into a single document. DocIO also allows you to clone a part of a document and merge it with an existing or new document.

Read and Write

Read and write Word documents to and from DOC, DOT, DOCM, DOTM, DOCX, DOTX, RTF, HTML, TXT, and XML (WordML). You can also write Word documents as ODT files.

Find and Replace

Search for text or patterns and then replace them. You can also replace the entire Word document contents.


Create and modify richly formatted tables, rows, and cells. There is also support to merge cells, apply predefined table styles, and format tables, rows, and cells.


DocIO provides support for inserting and deleting bookmarks. It is also possible to manipulate existing bookmarks and perform operations like insert, append, replace, and delete on the contents of the bookmarks.

For more information about the supported features, please refer to this: documentation page.


Get our entire suite of file-format manipulation components for

$995 per user

  • Includes libraries for reading and writing Excel, Word, PowerPoint, and PDF files.
  • NO server deployment fees.

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