Tool to compare large numbers of PDF files? [closed]

Answer 1

blubeam pdf software will do this for you

Answer 2

I don't seem to be able to see this here, so here it is: via superuser: How to compare the differences between two PDF files? (answer #229891, by @slestak), there is

https://github.com/vslavik/diff-pdf

(build steps for Ubuntu Natty can be found in get-diff-pdf.sh)

As far as I can see, it basically overlays the text/graphics of each page in the pdf(s), allowing you to easily see if there were any changes...

Cheers!

Answer 3

Our product, PDF Comparator - http://www.premediasystems.com/pdfc.html" - will do this quite elegantly and efficiently. It's also not free, and is a Mac OS X only application.

Answer 4

There is actually a diffpdf tool.

http://www.qtrac.eu/diffpdf.html

Its weakness is that it doesn't react well when additions make new text shift partially to a new page. For instance, if old page 4 should be compared to the end of page 5 and the beginning of page 6, you'll need to shift parameters to compare the two slices separately.