.NET Document Comparison API

Nuget

On-premise library to compare documents in applications based on .NET platform. Retrieve the list of changes in the desired format with a line-by-line comparison of content, paragraphs, characters, styles, shapes, and position.

Document Comparison Features

Compare and detect differences among similar documents.
Support for 55+ popular document formats from various categories.
Visual separation of detected changes with the ability to accept or reject modifications.
Generate document preview.
Compare paragraph, word as well as characters.
Identify content styling and formatting changes.
Set metadata from the source, target files or keep it user-defined.
Make the resultant document password protected.

Supported Microsoft Office Formats

Microsoft Word: DOC, DOCM, DOCX, DOT, DOTM, DOTX
Microsoft Excel: XLS, XLT, XLSX, XLTM, XLSB, XLSM, XLSX, CSV
Microsoft PowerPoint: POT, POTX, PPS, PPSX, PPTX, PPT
Microsoft OneNote: ONE
Microsoft Visio: VSDX, VSD, VSS, VST, VDX

Other Supported Formats

OpenDocument: ODT, ODP, OTP, ODS, OTT
Fixed Layout: PDF
AutoCAD: DWG, DXF
Email: EML, EMLX, MSG
Images: BMP, GIF, JPG, JPEG, PNG
Web: HTM, HTML, MHT, MHTML
Text: RTF, TXT
eBook: MOBI, DjVu
Medical Imaging: DCM
Programming Language: CS, JAVA, CPP, JS, PY, RB

Develop & Deploy GroupDocs.Comparison Anywhere

Microsoft Windows: Windows Azure, Microsoft Windows Desktop (x86, x64), Microsoft Windows Server (x86, x64)
macOS: Mac OS X
Linux: Ubuntu, OpenSUSE, CentOS, and others
Development Environments: Microsoft Visual Studio (2010 & up), Xamarin.Android, Xamarin.IOS, Xamarin.Mac, MonoDevelop 2.4 and later
Supported Frameworks: .NET Standard 2.0, .NET Framework 2.0 or higher, .NET Core 2.0 or higher, Mono Framework 1.2 or higher

Get Started

Are you ready to give GroupDocs.Comparison for .NET a try? Simply execute Install-Package GroupDocs.Comparison from Package Manager Console in Visual Studio to fetch & reference GroupDocs.Comparison assembly in your project. If you already have GroupDocs.Comparison for .NET and want to upgrade it, please execute Update-Package GroupDocs.Comparison to get the latest version.

Compare Password Protected `DOCX` Files using C# Code

using(Comparer comparer = new Comparer("source.docx", new LoadOptions() {
    Password = "1234"
})) {
    comparer.Add("target1.docx", new LoadOptions() {
        Password = "5678"
    });
    comparer.Add("target2.docx", new LoadOptions() {
        Password = "5678"
    });
    comparer.Add("target3.docx", new LoadOptions() {
        Password = "5678"
    });
    comparer.Compare("result.docx");
}

GroupDocs.Comparison for .NET

GroupDocs