reliable editting of any PDF file

[michael <cs@networkingnewsletter.org.uk>]

I'm struggling to find software to edit a PDF file. Firstly, I'm wary of
using a graphics editor to do the job and pdfedit [1] seems to reject
many of the PDF files I've just tried because they are "linearised"
according to the bug report [2]

So what joy have others had, or is this the Holy Grail [3]?

Thanks, Michael

[1] http://sourceforge.net/projects/pdfedit
[2] http://pdfedit.petricek.net/bt/view.php?id=202
[3] ref to something that may or may not be obtainable but that many
people spend their entire lives searching for...