Double PDF for Mac–detect PDF difference!
Now, Double PDF is back to macOS 10.13, 10.14 and 10.15.
Now, Double PDF is unavailable on Mac App Store. They made a lot of bugs in macOS and does not fix, so I feel it is difficult to update this product.
Double PDF detects difference between two PDFs.
You can use Adobe Acrobat’s find different command. Yes, it exists.
But it takes a long long time to detect diff. And it detects a lot of difference of internal tag or data. There is no use to find diff with Adobe Acrobat.
So, I made this tool. Double PDF detect PDF difference by contents text and rendered images.
Text is a major part of PDF. PDF rendering engine is changed in each major OS release or software version.
So, Double PDF has “sorted text” method to find text diffs without detecting meaningless text order change.
If you need to contact with the developper (Takaaki Naganoya), please write email to me.