rewritepdf.pl [options] infile.pdf [outfile.pdf] [password(s)]\n";
-c --cleanse seek and destroy unreferenced metadata in the document
-C --clearannots remove all annotations (including forms)
-d --decode uncompress any encoded elements
-f --filter=name compress all elements with this filter (can use more than once)
-X --decrypt remove encryption from the document
-o --order preserve the internal PDF ordering for output
-v --verbose print diagnostic messages
-h --help verbose help message
-V --version print CAM::PDF version
-p --pass opass upass set a new owner and user password
-P --prefs print modify copy add set boolean permissions for the document
The optional password arguments are needed to open password-protected
PDF files. Heres an example of password-protecting and then
unprotecting it in sequence:
rewritepdf.pl --pass SecretPass SecretPass orig.pdf passworded.pdf
rewritepdf.pl --decrypt passworded.pdf unprotected.pdf SecretPass
If you want to prevent people from being able to perform the latter
step, then tighten your permissions:
rewritepdf.pl -p Secret Secret -P 1 0 0 0 orig.pdf passworded.pdf
which means that users can print the passworded PDF, but not change
it, copy-and-paste from it, or append to it.
Read and write a PDF document, and possibly modify it along the way.
The --cleanse option could possibly break some PDFs which use
undocumented or poorly documented PDF features. Namely, some PDFs
implicitly store their FontDescriptor objects just before their Font
objects, without explicitly referring to the former. Cleansing
removes the former, causing Acrobat Reader to choke.
We recommend that you avoid the --decode and --filter options, as
were not sure they work right any longer.