I could buy Adobe Acrobat Professional which have a feature called
"Remove Security", but this software package is quite expensive.
Any freeware tools for Windows that could help me do this?
Best regards
Henrik Larsson
Adobe Cracrobat Professional.
(Sorry. Couldn't help myself.)
See pdftk at <http://www.accesspdf.com/pdftk/>. That page contains an
example too, scroll a bit down to ‘Decrypt a PDF’.
Note: You need the OWNER password for this operation (it’s the same
with Acrobat); the USER password is sufficient to view the PDF, but
not to modify it.