It loads without problem but no matter what PDF files I attempt to process using it, all it does is give the “Synopsis” which is normally provided with the “–help” argument is given. The input files are not being read and no output is generated.
Quite possible that someone comes with help here, but I see that repo is a private one. Thus trying to contact the maintainer might be a useful shortcut.
Not a direct answer to your issue with pdftk, but perhaps ‘pdfseparate’ and ‘pdfunite’ might be acceptable alternatives for you? Both are part of poppler-tools.
pdftk depends or build-depends on GCJ. GCJ has been dropped upstream
since GCC 7, so we are dropping it from Debian. Thus please either
drop support for GCJ if you are just building an alternative package
with GCJ support (e.g. ant-gcj, ecj-gcj) or switch to default-jdk /
default-jre as appropriate.
I have checked out pdfunite and pdfseparate and they do most of what I need pdftk for. Ghostscript can be used for other tasks. I will use pdftk if it becomes available again.