Hacking pdf files

Mohsen · 09-14-2003, 04:02 AM

Who knows what does PDF files do for it's security. For example there are some PDF files which can not be copied (mark), or can not be printed. Is it a gentle way for PDF readers that they do not allow to be printed or PDF uses a way that it can not be printed?

Strike · 09-14-2003, 01:03 PM

Well, if you can render the PDF at all, it's printable. It just may not be printable using whatever API the PDF stuff normally uses. However, not respecting the "DRM" (*snicker*) built-in to the PDF may be a violation of the DMCA

bwMarkus · 09-15-2003, 09:20 AM

there has once been a tool which allows to remove the security from pdf files, at least when it's only 40 bit encrypted, I think it's called "aebpr".

I heard that someone was able to open such secured pdf files in ghostscript.

Note: I can't tell you how to open them in gs and I can't send you the above mentioned programm because I don't have it !