I need help - I can help - Best RenderTo image file format?

Print Page | Close Window

Best RenderTo image file format?

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=1158
Printed Date: 30 Jan 26 at 4:12PM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com

Topic: Best RenderTo image file format?

Posted By: Eric24
Subject: Best RenderTo image file format?
Date Posted: 28 Jul 09 at 1:43AM

Two questions:
1) Are there any settings that control image file compression parameters?
2) I don't really care what the output type is (this is an intermediate step and the next step can read just about any graphics format). With that in mind, what is the best image type to render to? Is one of the types "native", requiring the least amount of processing? Or does it matter at all (i.e., QPDF renders to an in-memory format-neutral bitmap and only converts to the format on save)?

Replies:

Posted By: DELBEKE
Date Posted: 28 Jul 09 at 6:51AM

You can use "compresimages" before adding images in the pdf, but this function only use compression (flate algorithm) for the storage inside the pdf, the images are keept in their initial format. If you use saveimagetofile, the format is unchanged.

Inside,QPDf convert loaded images to Bmp for rendering so saving the whole document in this format take less processing.