I need help - I can help - Issue when adding Signature to the file

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Issue when adding Signature to the file

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=2772
Printed Date: 27 Jan 26 at 10:19PM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com

Topic: Issue when adding Signature to the file

Posted By: Marat.Chariev
Subject: Issue when adding Signature to the file
Date Posted: 31 Oct 13 at 2:15PM

I am facing a strange issue when trying to add Visual signature field to existed PDF file. Existed PDF file (created with the QuickPDF.DLL) has 3 pages with 2 Form fields on each page, lets name it Field_1 and Field_2. So, pages 1,2, and 3 have identical value in those fields - Field_1 and Field_2.

There is no issues at this stage, I can open PDF file, modify the value of those fields, and save it. Further I try to add Visual digital signature follow exact this instructions I found in this Forum’s thread http://www.quickpdf.org/forum/topic2563&OB=ASC.html" rel="nofollow - http://www.quickpdf.org/forum/topic2563&OB=ASC.html (see Rowan’s message):

SignProcessID := DPL.NewSignProcessFromFile('TheUnsignedFile.pdf', '');

if (SignProcessID > 0) then

begin

DPL.SetSignProcessPFXFromFile(SignProcessID, 'qpl_test.pfx', 'testing');

DPL.SetSignProcessInfo(SignProcessID, 'To test digital signatures', 'The World', 'Contact me');

DPL.SetSignProcessField(SignProcessID, 'Contract Signature');

DPL.SetSignProcessFieldBounds(SignProcessID, 100, 600, 200, 100);

DPL.SetSignProcessFieldImageFromFile(SignProcessID, 'visualsignature.jpg', 0);

DPL.EndSignProcessToFile(SignProcessID, 'TheSignedFile.pdf');

end;

Here is the issue: Resulting PDF file has a Visual Digital signature on the first page, but missing Field_1 and Field_2 on pages 2 and 3.

I noticed that DPL.EndSignProcessToFile() returns 0, and I have a filling I am missing something or doing something wrong. Any thoughts?

Thanks

Marat

Replies:

Posted By: Ingo
Date Posted: 01 Nov 13 at 11:41AM

Hi Marat,

i would advice you to change the form fieldnames of page 2 and 3 to unique names and then try again.

I don't know the actual state regarding form field issues but in the past there were probs with multiple identical formfieldnames in a document.

Try it.

Cheers, Ingo

-------------
Cheers,
Ingo

Posted By: Marat.Chariev
Date Posted: 01 Nov 13 at 5:06PM

Thanks, Indigo

Using unique names for each field resolved the issue.

Now I am facing another one... I am using same PDF file with 3 pages and 2 fields on each page with unique names. But this time I am trying to place the visual signature on the third page. To accomplish that I use follow command:

lnResult = DPLSelectPage(lnInstanceID, 3)

But the signature always appears on the first page, and DPLPageCount(lnInstanceID) returns 1.

I guess that is because I use DPLNewSignProcessFromFile() command instead of DPLLoadFromFile()

Is there any way to place Visual Digital Signature on the page other than first page?

Posted By: Marat.Chariev
Date Posted: 01 Nov 13 at 5:07PM

Sorry, I mean Ingo

Posted By: Rowan
Date Posted: 18 Nov 13 at 12:29AM

Hello Marat,

You can control the page on which the digital signature is placed by calling the SetSignProcessFieldPage function.

Cheers,

- Rowan.

Posted By: Marat.Chariev
Date Posted: 21 Nov 13 at 3:02PM

Thanks, Rowan
That is exactly what I was looking for.

Regards
Marat