get page information

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   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
or
       qp.ImageResolutionUnits

it returns always a 0.

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

Thanks in advance

Sly

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SlyJay Members Profile Find Members Posts Beginner Joined: 20 Mar 10 Location: Italy Status: Offline Points: 6	Post Options Post Reply Quote SlyJay Report Post Thanks(0) Quote Reply Topic: get page information 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 or qp.ImageResolutionUnits it returns always a 0. How can I achieve this?? Any help is appreciated (vb, C#) Thanks in advance Sly

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3530	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply 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

SlyJay Members Profile Find Members Posts Beginner Joined: 20 Mar 10 Location: Italy Status: Offline Points: 6	Post Options Post Reply Quote SlyJay Report Post Thanks(0) Quote Reply 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