File comparison

Compare PDF has the most powerful file comparison function. It can compare files that has a common ancestor, and it can compare non-related documents.

File Comparison feature of Compare PDF lets compare text files: PDF and plain text.

You can download and try file comparison in Compare PDF right now. The evaluation version is fully-functional and doesn't have any functional limitation, so you can try it for free for 30-days. Download Compare PDF now

Comparison methods

With Compare PDF you can compare texts char by char, word by word or by keyword. Read more about comparison methods to learn what is the best comparison method for your very job. Read more...

	Quick Start. Compare two files with Compare PDF. Read more...
	Compare documents by keywords. Read more...
	Compare two documents by keywords. Example. Read more...

Compare documents with common ancestor

Documents that are the same version of some other document compare be compared using Compare PDF's char by char or word by word comparison. Read more...

Compare non-related documents

Documents that doesn't have a common ancestor cannot be compared char by char or word by word, because of they have a different structure. Use "by keywords" comparison for that purpose. Read more...

FAQ: If documents that I'm comparing don't have common structure? Read more...

Comparative Report

For file comparison only Standard report is available. Read more about available reports for file comparison. Read more...

Other features

Compare two folders feature lets to  find changes that were made in two folders and containing files. Read more...

Command line allows to automate compare and integrate Compare PDF with other software products. Read more...