I need help - I can help - Quick view of PDF files implementation

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Quick view of PDF files implementation

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=1113
Printed Date: 07 Mar 26 at 6:43PM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com

Topic: Quick view of PDF files implementation

Posted By: mikle74
Subject: Quick view of PDF files implementation
Date Posted: 17 Jun 09 at 1:11AM

Hello all,

I'm writing .NET program that allows user to view PDF files. Currently the code uses RenderPageToVariant() to retrieve each page content and display it. However this function works rather slow. Looking at existing PDF viewers I found that some of them are opening big PDF
files very quickly, especially FoxIt reader - it can open PDF of any size without delays and immediately scroll to any page of a document. Is there any way to implement this using Quick PDF library?

Regards,
Mick

Replies:

Posted By: DELBEKE
Date Posted: 17 Jun 09 at 8:03AM

Hello and Welcome here

Quick Pdf library load the whole pdf in memory. Big Pdfs can take a long time before been displayed.

The Pdf spécifications give a way to show pages as soon as all informations of the first page are read. This concept is called "Linearised" Pdfs. Quick Pdf Library can read such PDF, but is not able to show the first page before the complete read of the PDF. Perhaps a new release ?