Compare Documents in C#

Document comparison using 'Wordize for .NET' is fast, simple, and efficient. Whether you're working with contracts, reports, or collaborative draft materials, Wordize simplifies the process of identifying changes between any two documents. The C# API accurately identifies and highlights differences such as text edits, formatting changes, and structural modifications. Wordize is the perfect tool for automating document comparison processes in your .NET applications. Save time, increase accuracy, and ensure consistency in your documents with our powerful API.

Key Features

Character or word-level document comparison for highly accurate results.
Identification of differences in text, formatting, headers/footers, and tables.
Flexible customization of comparison methods using parameters such as ignoring comments, formatting, or headers/footers.
Support for a wide range of document formats, including DOCX, PDF, TXT, and RTF.

Practical Applications

Legal industry. Quickly and efficiently identify changes in contracts, agreements, or policies.
Financial sector. Detect changes in financial reports or regulatory documents.
Collaborative content work. Automate version tracking of documents in team projects.
Publishing. Ensure consistency between versions during editorial review.

Wordize provides consistent and reliable comparison results even for the most complex documents. Advanced customization options allow developers to adapt the comparison process to specific requirements, such as ignoring trivial formatting changes while focusing on critical differences in content. Whether you're creating document management systems or automating content verification processes, Wordize provides the necessary flexibility and accuracy.

Test our product's capabilities in our online demo by uploading your documents, configuring comparison parameters, and downloading the comparison result to your computer.

Run code

Upload the source document

Upload the second document to compare with the source

Select the target format from the list

using Wordize.Comparing;

Comparer.Compare("Input1.docx", "Input2.docx",
    "Output.pdf", "Author Name", DateTime.Now);

							using Wordize.Comparing;

Comparer.Compare("Input1.docx", "Input2.docx",
    "Output.pdf", "Author Name", DateTime.Now);

							using Wordize.Comparing;
using Wordize.Saving;

var imageStreams = Comparer.CompareToImages("Input1.docx", "Input2.pdf", 
    new ImageSaveOptions(SaveFormat.Pdf), "Author Name", DateTime.Now);

foreach (var (stream, page) in imageStreams.Select((s, i) => (s, i)))
{
    using var _ = stream;
    stream.Position = 0;
    
    using var file = File.Create($"Output_{page + 1}.pdf");
    stream.CopyTo(file);
}
			

					Run code
				

How to compare two documents (Word, PDF, HTML, Markdown) in C#

Install Wordize for .NET
Add a library reference (import the library) to your C# project
Call the Compare method to find differences between documents
Get the results of your document comparison in a separate file