General Discussion - Not show sign in PDF Reader

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Not show sign in PDF Reader

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=2208
Printed Date: 22 Nov 24 at 7:33PM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com

Topic: Not show sign in PDF Reader

Posted By: cmx
Subject: Not show sign in PDF Reader
Date Posted: 02 Apr 12 at 11:30AM

Hi,

When I sign a pdf document with one or more fields, the sign is not visible in Adobe Acrobat Reader.

Why ?

Thanks

Replies:

Posted By: Rowan
Date Posted: 02 Apr 12 at 11:38AM

Hi cmx,

Do you have a sample PDF that you can post for us to examine to see the status of the signature in the PDF?

Cheers,

- Rowan.

Posted By: cmx
Date Posted: 02 Apr 12 at 11:57AM

http://www.cmxsrl.it/tsigned.pdf - http://www.cmxsrl.it/tsigned.pdf

this is the file

Thanks

Posted By: Ingo
Date Posted: 02 Apr 12 at 1:42PM

Hi!

The other thing:
What's the returning value after signing?
Can you post the relevant code snippet
regarding signing?

Cheers and welcome here, Ingo

Posted By: cmx
Date Posted: 02 Apr 12 at 2:08PM

OpenPassword = ""
    SignatureFieldName = "FIRMA"
    PFXFileName = "Y:\scansioni\Sistema.pfx"
    PFXPassword = "****"
    Reason = "Verifica di Conformità"
    Location = "****"
    ContactInfo = "****"

    ReturnValue = QPDF.SignFile(FileName, OpenPassword, SignatureFieldName, FileNameSign, PFXFileName, PFXPassword, Reason, Location, ContactInfo)
   ------------------------------------------------------------------------------------------

I use VB6 and the ReturnValue is 1.

The PDF File contains a field.

Thanks

Posted By: cmx
Date Posted: 05 Apr 12 at 2:21PM

help me!!! Please!!

Posted By: Wheeley
Date Posted: 06 Apr 12 at 11:55PM

My company signs PDFs and we have no problems, but we don't pass an existing field name to the function. Also, the way QuickPDF signs files is often what you aren't expecting. To tell if a signature exists in Adobe Reader, the menu option Documents->Sign->"Validate All Signatures" will be enabled. If is not enabled, then something is wrong with your arguments to the function.

Posted By: cmx
Date Posted: 10 Apr 12 at 9:07AM

Hi,

Thanks, but not function.

I don't understand why if i don't insert the module field the signature is showen right in Adobe PDF Reader. Otherwise when I have inserted the module field and then signature the file the is not showen.

Thanks

Posted By: tfrost
Date Posted: 16 Dec 12 at 12:29PM

I have found the same as you (in build 9.12). When you name an existing field of type signature in the SignFile function, the signing is reported as successful but the field disappears, and the signature fails to show up, in the output file. I have opened a support case on this. As far as I can see, signing only works correctly if the named field does NOT exist.