I need help - I can help - PrintDocument() gives blank pages

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PrintDocument() gives blank pages

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=1892
Printed Date: 22 Jan 26 at 11:53AM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com

Topic: PrintDocument() gives blank pages

Posted By: einar
Subject: PrintDocument() gives blank pages
Date Posted: 15 Jul 11 at 9:02AM

I have a laboratorysystem creating PDF files. In addition to sending the PDF's with e-mails, the system prints a hardcopy. After adding NeeviaPDF to sign visually, the printing using LoadFromFile() and PrintDocument() gives blank pages. If I open the PDF with Acrobat, printing is OK.

Replies:

Posted By: Ingo
Date Posted: 19 Jul 11 at 11:02PM

Hi!

A relevant code-snippet would be good ;-)

Cheers, Ingo

Posted By: AndrewC
Date Posted: 21 Jul 11 at 9:10AM

What is the return values from the LoadFromFile call ? 1 or 2. If it is 2 then the PDF could be malformed or password protected.

Posted By: tfrost
Date Posted: 21 Jul 11 at 12:57PM

What version of QuickPDF? I have seen PDFs rendered with blank pages in 7.24 which are OK using 7.26.

Posted By: AndrewC
Date Posted: 21 Jul 11 at 1:20PM

If a document is malfored and returns 2 from LoadFromFile() it will then print a blank page as there is actually no document loaded to even be printed.

We are trying to include fixes for these malformed documents when we find them but this is not always easy. There are PDF's out there that contain spelling errors, invalid xref tables, missing keys etc. Unfortunately, Adode Acrobat opens these files so everyone expects every other PDF library should be able to open the same files. Adobe have hundreds of programmers and sell their tools for many thousands of dollars.