Debenu Quick PDF Library - PDF SDK Community Forum : Transparent PNG DrawImage http://www.quickpdf.org/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Fri, 01 May 2026 05:16:56 +0000 Sun, 18 Aug 2013 22:13:44 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.01 360 www.quickpdf.org/forum/RSS_post_feed.asp?TID=2710 <![CDATA[Debenu Quick PDF Library - PDF SDK Community Forum]]> http://www.quickpdf.org/forum/forum_images/QPDF_Forum_Title.png http://www.quickpdf.org/forum/ <![CDATA[Transparent PNG DrawImage : Hi Eric!Why not asking the FAQ...]]> http://www.quickpdf.org/forum/transparent-png-drawimage_topic2710_post11111.html#11111 Author: Ingo
Subject: 2710
Posted: 18 Aug 13 at 10:13PM

Hi Eric!

Why not asking the FAQ ;-)
http://www.quickpdflibrary.com/faq/how-do-i-add-an-image-and-make-it-transparent.php
Here you can read what's possible regarding transparency.

Cheers, Ingo
]]> Sun, 18 Aug 2013 22:13:44 +0000 http://www.quickpdf.org/forum/transparent-png-drawimage_topic2710_post11111.html#11111 <![CDATA[Transparent PNG DrawImage : If I call AddImageFromFile, with...]]> http://www.quickpdf.org/forum/transparent-png-drawimage_topic2710_post11109.html#11109 Author: Eric24
Subject: 2710
Posted: 18 Aug 13 at 7:38PM

If I call AddImageFromFile, with options = 0/normal, and then later call DrawImage, if the image loaded is a PNG with an alpha layer (for transparency), will QPDF merge the image using the alpha layer? This isn't quite the effect I'm getting, so I wanted to be sure that this was supported functionality. Is there something I need to do to "enable" this (I've tried a few different options in AddImageFromFile, with no visible effect)?

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