DiffPDF is a great tool for quickly comparing multiple PDF files. It makes it easy to review differences between the content copies highlighted in red, as well as analyze various characteristics of the files such as words, characters and appearance, number of pages, spaces, etc. It is simple to use and provides detailed comparative statistics. Highly recommended!
There was a download of DiffPDF 6.0.6 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The software lies within Office Tools, more precisely Document management. The actual developer of the program is Qtrac Ltd.
The following versions: 5.6, 5.3 and 5.2 are the most frequently downloaded ones by the program users. This PC software was developed to work on Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10 or Windows 11 and can function on 32-bit systems. The DiffPDF installer is commonly called diffpdf.exe. We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software.
From the developer:
DiffPDF is an app that can be used to compare two PDF files - textually or visually. The program shows pairs of pages from the two PDFs being compared with any differences highlighted. The comparisons can be made based on the text regardless of layout, or based on appearance (which accounts for fonts, colors, layout, diagrams, images).
You may want to check out more software, such as Professional Notepad, NJStar Japanese WP or Movie Outline, which might be related to DiffPDF.