This program creates an image-based difference of two PDF files using PDFTK and ImageMagick.
You need to have the following installed:
- standard system tools
- compare (provided by ImageMagick)
Execute as root:
Run the program like this:
pdf-diff orig.pdf new.pdf diff.pdf
You can set the
DENSITY environment variable if you'd like to
increase/decrease the resolution of the diff. The default is
The input files must have the same number of pages, not exceeding 9999 pages each.