“ConfrontaPDF compares two PDF files via GUI or command line." Excellent program. See it in github at lbellonda/ConfrontaPDF Adding to avoid stupid collapsing of “short” but correct answers, this program will show the pages with differences highlighted side by side. I use it regularly to compare successive draft of a newsletter which has images and columns and about 20 pages. Very fast. Note. “ConfrontaPDF is based on DiffPDF. The open source DiffPDF was created and maintained by Mark Summerfield 2008-2013. This is a fork of that project by Luca Bellonda, begun in 2015. The source for the last release of Mark's open source version is available from. DiffPDF. Mark's commercial versions are available from. Windows PDF comparison application Answering. “Is there a software for comparing two similar PDF files?”
With Confronted PDF, I just check the PDF files, and compare them. “What software are you using to compare two PDF files?” “Open or the free diff-viewer which I prefer.