FAQ

What operating systems are supported?

MatchPDF runs in Microsoft Windows environments only.

How much does it cost?

This is a free application licensed under the GNU General Public License.

Does MatchPDF examine PDF documents in terms of structure or appearance?

Two PDF documents can be visually identical and still have different file sizes or internal structures. 
​MatchPDF, by design, does not compare file size or internal contents or structure.  The utility is intended to compare the appearance of the PDF documents.

Does MatchPDF detect changes with images as well as text?

Yes.  Even a one-pixel difference between two documents will be detected.