I need help - I can help - allow comments

Print Page | Close Window

allow comments - Acrobat Reader

Printed From: Debenu Quick PDF Library - PDF SDK Community Forum
Category: For Users of the Library
Forum Name: I need help - I can help
Forum Description: Problems and solutions while programming with the Debenu Quick PDF Library and Debenu PDF Viewer SDK
URL: http://www.quickpdf.org/forum/forum_posts.asp?TID=758
Printed Date: 22 Nov 24 at 5:40PM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com

Topic: allow comments - Acrobat Reader

Posted By: Charly
Subject: allow comments - Acrobat Reader
Date Posted: 06 Jul 07 at 1:10PM

Folks,

i�m trying - without success - to activate the PDF flag "allow comments" to be able to add comments via the acrobat reader ( 7.0 / 8.0 ) . Here�s what i�ve tried:

version 1 :

iSEDUnlockKey( <My key> )

iPerm := iSEDPermissions ( 1, 1 , 1 ,1 , 1 , 1 , 1 , 1 )

iSEDEncryptFile ( "c:\huw.pdf", "C:\huw2.pdf", "", "", 0, iPerm )

version 2

iSEDUnlockKey( <My key> )
iSEDLoadFromFile ( "C:\huw.pdf" )
iPerm := iSEDPermissions ( 1, 1 , 1 ,1 , 1 , 1 , 1 , 1 )
iSEDEncrypt ( "" , "" , 0 , iPerm )
iSEDSaveToFile ( "C:\huw.pdf" )

Afterwards when i look at the tabpage "security" the document restriction groupbox still tells me that comments are not allowed, while the content within the "Document security" groupbox now tells me that comments are allowed ?

Am i doing something wrong, or is it simply not possible do unlock the comments property with the isedQuickPdf.DLL

BTW. I�m using the function library version 5.22

TIA and regards

Charly

Replies:

Posted By: Ingo
Date Posted: 06 Jul 07 at 4:05PM

Hi Charly!

You need at least 40 bit encryption to do this.
Without any encryption you can't set any permissions.
Replace the 0 with 40 or 128 and it will work.

Best regards,
Ingo

Posted By: Charly
Date Posted: 07 Jul 07 at 3:15AM

Ingo,

> Replace the 0 with 40 or 128 and it will work.

The function allows 0 or 1 only. 0 defaults to 40 Bit encryption. I�ve also tried 1 ( 128 Bit ), but the problem is still the same. I can�t change the document restriction "comments allowed" flag ... Have you been able to achieve this with Quickpdf code somehow, so the acrobat reader enables its comments/stamp possibilities ?

Here are two hardcopies showing the status after setting the permissions.

1. security tabpage content ( comments keep disabled )

http://www.rauscher-software.de\downloads\comments1.jpg - www.rauscher-software.de\downloads\comments1.jpg

2. document security details ( comments enabled )

http://www.rauscher-software.de\downloads\comments2.jpg - www.rauscher-software.de\downloads\comments2.jpg

regards

Charly

Posted By: Ingo
Date Posted: 07 Jul 07 at 5:30AM

Hi!
So you have already a pdf created with pdf-specs 1.5 or 1.6? QP can't read such documents in a proper way. In this case you should use a tool first "PDFcrypt" and then doing your permission-settings. The tool is developed by Chicks (based on iText) and it's here in our download-section.
Good luck,
Ingo

Posted By: marian_pascalau
Date Posted: 07 Jul 07 at 10:17AM

Hi there,

as much as I know, the commenting feature is not part of Document Permision settings. The permision property has to do with Digital Signature or at least is present in the Digital Signature feature of PDF Specification!

Best regards, Marian

Posted By: Charly
Date Posted: 08 Jul 07 at 2:18AM

Thanks Ingo and Marian,

Ingo, I�ve tried your suggestion. I�ve also tried several other tools found in the Internet - with no success. But i found a hint to the XChange Viewer product. Great piece of SW, and there are no problems to add stamps or notes within their viewer to my PDFs ! Searching their forum i found the following snippet concerning the issue Marian mentioned.

[...]
One other point that should be made and is singuarly the number 1 reason we embarked on creating the PDF-XChange viewer - and that is Adobe products only allow you to mark-up documents created with Adobe certficated (approved) tools - so if you file was created by another - non certificated product - the file could not be marked up as required.
[...]

When the eval fits my needs, i�m sure to buy a ActiceX Viewer SDK licence immediatly ! IMO 1500 Euro ( 25000 end user licences included ) are a very fair price.

BTW. @ Ingo

I�ve downloaded the latest v5.22 DLL Version and read the history.txt. Am i right that the function signatures didn�t change, and no new function was added since the last offical DLL from SedTech ?. I�m asking, because i�m the one who gave Kevin the advice how the earlier included "iSQP05xxVO.prg" content should look like.

regards
Charly

Posted By: Ingo
Date Posted: 08 Jul 07 at 7:35AM

Hi Charly!

As far as i know in this case there was nothing changed since the last official iSED-version. 'Till now we've made only improvements on internal functions and bugfixing but no new functions.

Best regards,
Ingo