ComparePDF compares two PDFs and shows any different pages side-by-side color highlighted.

This product is no longer for sale.

We recommend DiffPDF rather than ComparePDF because DiffPDF is much more popular with customers and therefore gets the lion's share of resources for development.

Use ComparePDF to compare two PDF files quickly and easily:
Click and choose one PDF; click and choose another PDF; click Compare.

ComparePDF was a Windows application ideal for office workers. (See also Why Compare PDFs?)

When two PDFs are compared, if differences are found, ComparePDF creates a PDF with each pair of pages that are different from the two PDFs side-by-side with differences color highlighted (as with a highlighter pen). ComparePDF then shows the difference PDF in your PDF reader application.

Comparisons can be made based on the text regardless of layout, or based on appearance (which accounts for fonts, colors, layout, diagrams, images, and so on). ComparePDF was fast and cloud-free: it ran on your own computer without the size or page limits of online tools—some customers compare PDFs with thousands of pages.

ComparePDF was useful for anyone who needs to compare PDFs, reports, books, or labels—for example, archivists, journalists, lawyers, packagers, publishers, researchers, software testers, and translators. ComparePDF was used in a wide range of contexts, from authors and publishers to banks, insurance companies, and Governments.

ComparePDF was an alternative to our far more popular DiffPDF product. ComparePDF was faster but it was 64-bit only and had fewer features. And if you require a console-command line tool-use our com­pare­pdf­cmd program instead.)