Qtrac Ltd.

Commercial PDF Comparison Software

"Your software is the best I've ever used for comparing PDFs.", —customer feedback.

Our commercial software is for sale or resale in the US and most countries outside Europe. (Why?)

DiffPDF

DiffPDF — compare PDF files quickly and easily: Click to choose one PDF; click to choose another PDF; click Compare. The changes are shown as if you'd used highlighter pens to show added, changed, or deleted text.

This Windows application is our easiest to use and most affordable and popular product. Some customers report it as superior in functionality and far faster than Adobe Acrobat's Diff tool. Your PDFs are safely compared on your own computer without the size or page limits of online tools. Try free for 20 days or buy an annual license key for $149 USD. (See also Why Compare PDFs?)

DiffPDF


com­pare­pdf­cmd

com­pare­pdf­cmd — compare PDF files. In a console (i.e., in a Command Prompt window opened by running cmd.exe) enter, e.g., com­pare­pdf­cmd.exe -r report.pdf old.pdf new.pdf and see any differences highlighted in report.pdf. Cloud-free: your PDFs are safely compared on your own computer without the size or page limits of online tools.

This commercial console (command line) program for Windows is ideal for more technical users doing testing, quality assurance, and scripted comparisons, and it is even faster than DiffPDF. Try free for 20 days or buy an annual license key for $199 USD. (See also Why Compare PDFs?)

C:\> com­pare­pdf­cmd.exe


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