PDF Layer (Optional Content Group) encryption
Printed From: Debenu Quick PDF Library - PDF SDK Community Forum
Category: For Users of the Library
Forum Name: General Discussion
Forum Description: Discussion board for Debenu Quick PDF Library and Debenu PDF Viewer SDK
URL: http://www.quickpdf.org/forum/forum_posts.asp?TID=785
Printed Date: 23 Nov 24 at 4:18AM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com
Topic: PDF Layer (Optional Content Group) encryption
Posted By: haagendaz
Subject: PDF Layer (Optional Content Group) encryption
Date Posted: 17 Sep 07 at 3:59PM
Does anyone know if it is possible to encrypt (password protect) 1 layer of a pdf and not the other? Obviously in a single pdf that has 2 layers?
If it is possible can you tell me how to go about doing this? can iSED do this?
I have written an application in VB and need to redact (block out) the ssn of documents for all users, EXCEPT the administrator.
Any help or ideas is very appreciated!
Thanx,
haagendaz
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Replies:
Posted By: Ingo
Date Posted: 17 Sep 07 at 4:35PM
Hi!
The password protection works documentwide - No chance for a special layerprotection. I won't do any experiments in this case 'cause surely not all pdf-readers will work with such special things.
If you want to insert special notes only for special users you can work with custom fields. Try the functions Set... and GetCustomInformation.
Best regards,
Ingo
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Posted By: haagendaz
Date Posted: 15 Oct 07 at 3:42PM
Do you know how to make custom information user specific (any code samples)?
ie. The main document is viewable to anyone, but you need a password to view the custom information.
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Posted By: Ingo
Date Posted: 15 Oct 07 at 4:10PM
Hi!
To make it user specific perhaps you can use JavaScript. A field on a form to insert special content... It depends on what's the content and a custom message popup or not... Only thoughts... It should work ;-)
Best regards,
Ingo
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Posted By: haagendaz
Date Posted: 16 Oct 07 at 10:52AM
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I think you are thinking that this is a web page, but it is not. This is client-server software that just utilizes pdf's. Not the web....
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Posted By: Ingo
Date Posted: 17 Oct 07 at 1:36AM
Hi!
Why are you thinking what i'm thinking of ;-)
You can implement JavaScript-actions into pdf with QuickPDF.
Best regards,
Ingo
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Posted By: haagendaz
Date Posted: 17 Oct 07 at 11:15AM
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I'll try that out, Thanx for all your help! :)
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