use quickpdf with pdf files version 1,5 and 1,6

Hi Javier!

If the new pdf-documents doesn't use aes-encryption there's no problem. If they're using aes you can use only few quickpdf-functions.
A workaround:
You can use GetInformation(0) for the pdf-version.
If it's 1.5 or 1.6 you can use Encrypted. If this function returns 2 you can say that's aes.
Chicks had created an addon to encrypt and decrypt with aes, too:
http://www.quickpdf.org/forum/forum_posts.asp?TID=656

Best regards,
Ingo



Edited by Ingo - 06 Aug 07 at 5:03PM

Hi!

It depends on what you want to do with the document. Normally there's no problem using QuickPDF for these files (1.5/1.6) if there's no aes-encryption.

You can remove the restrection for modification with "permissions" and "encrypt".

Best regards,
Ingo
 

Hi Ingo

Nothing, it does'nt work

Hi again ;-)
Why not using the tool from Chicks?
br
Ingo

Hi!

If you call only "pdfcrypt" from the cmd-line you'll get help...

From the cmd-line:
pdfcrypt infile outfile decrypt ""
...and then <enter>

If you don't have success you can mail the pdf.

br
Ingo



Edited by Ingo - 10 Aug 07 at 3:45PM

Ingo,

You'll probably be interested to know that the PoDoFo PDF lib is adding AES encryption support. See Revision 607 in the SVN repository:

http://podofo.svn.sourceforge.net/viewvc/podofo/podofo/?view=log


I've been following PoDoFo for a while now, it keeps getting better. It (usually) compiles nicely in Windows under MinGW/MSYS.

I'll compile the new podofoencrypt tool once they get AES working, and make it available.

OK, PoDoFo's author has completed the commandline podofoencrypt, and I compiled it under MinGW/MSYS, and uploaded it to my site:

http://www.esnips.com/web/PDFTools

Look for it on the last page. Podofoencrypt doesn't yet support AES, but the author is making considerable progress, so I expect it soon.

Note that the PoDoFo lib can be compiled either static or dynamic, so a DLL encryption lib should be fairly easy
to create with it. I'll see what I can do once the AES is working.

Y'all should consider installing MinGW/MSYS if you want to use this open source, supported PDF lib. You should be able to compile it using the much easier Dev C++ (which was written in Delphi AFAIK).

It's actually fairly painful to install and figure out. You'll always run into dependencies that you don't have installed, so you'll need to download, compile and install them to continue. After successfully installing it, you'll most likely need libiconv, libfontconfig, libfreetype, libjpeg, libz, and possibly quite a few others.

A working knowledge of a linux shell, such as bash, will be extremely useful, since MinGW is essentially a unix emulator for Windows.

The good news is that libs for just about anything you want to do are available, and a good percentage of them will compile under MinGW, making them available under Windows.

I see that they have a new installer, which might make it a bit less painful - I haven't tried it.

Not my code, so we'll both have to wait for Dominik to get the AES code working. He borrowed the encryption code from another PDF project, so it's probably just a learning curve issue.

I agree that this will be better than PDFCrypt once its working :)