I need help - I can help - get page information

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get page information

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=1377
Printed Date: 31 Jan 26 at 9:18PM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com

Topic: get page information

Posted By: SlyJay
Subject: get page information
Date Posted: 20 Mar 10 at 4:21PM

Hi again,

I need to get page information for (scanned) pdf file like:

pagetype: tiff, jpeg etc.

colour: BW or colour

resolution: in DPI

compression: compression used for the page

but as I open my file with:

qp.LoadFromFile(CurrentFilename)

when I call:

qp.ImageHorizontalResolution

qp.ImageResolutionUnits

it returns always a 0.

How can I achieve this?? Any help is appreciated (vb, C#)

Thanks in advance

Sly

Replies:

Posted By: Ingo
Date Posted: 22 Mar 10 at 7:30AM

Hi!

As far as i know the first three properties are image-relevant and you can get them only searching directly into the code. That's possible... first unencrypt and save with QuickPDF and then looking with the your programming language. A decrypted pdf is nearly ascii - so looking inside is possible.
Please read the thread "he first steps..." in the "General section"...

Cheers and welcome here,
Ingo

Posted By: SlyJay
Date Posted: 22 Mar 10 at 8:44AM

Thank you, but I found a way using findImages then selecting the image and then accessing to imagetype etc.

But I'm experiencing another problem during extraction. I'll open a new post about this.

thanks

Sly