Debenu Quick PDF Library - PDF SDK Community Forum : How to print a transparent png file on top of text http://www.quickpdf.org/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sat, 07 Mar 2026 09:32:05 +0000 Thu, 26 Mar 2020 17:09:19 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.01 360 www.quickpdf.org/forum/RSS_post_feed.asp?TID=3796 <![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[How to print a transparent png file on top of text : Hi Ingo. thank you very much,...]]> http://www.quickpdf.org/forum/how-to-print-a-transparent-png-file-on-top-of-text_topic3796_post15161.html#15161 Author: frederik
Subject: 3796
Posted: 26 Mar 20 at 5:09PM

Hi Ingo. thank you very much, the transparent bmp files did the trick when using the setimagemask

I added this line just before the .fitimage call: 

Call .SetImageMask(0.9, 0.9, 0.9, 1, 1, 1)
Call .FitImage(x,y,width,height, 1, 1, 0)
]]> Thu, 26 Mar 2020 17:09:19 +0000 http://www.quickpdf.org/forum/how-to-print-a-transparent-png-file-on-top-of-text_topic3796_post15161.html#15161 <![CDATA[How to print a transparent png file on top of text : Hi Frederik,png isn&#039;t easy...]]> http://www.quickpdf.org/forum/how-to-print-a-transparent-png-file-on-top-of-text_topic3796_post15156.html#15156 Author: Ingo
Subject: 3796
Posted: 18 Mar 20 at 5:15PM

Hi Frederik,

png isn't easy stuff.
Try this link from the online ressources:
http://www.quickpdf.org/forum/displaying-transparent-bmp-files_topic2276.html
Yes. I know... bmp... but try it.

Cheers and welcome here,
Ingo

]]> Wed, 18 Mar 2020 17:15:27 +0000 http://www.quickpdf.org/forum/how-to-print-a-transparent-png-file-on-top-of-text_topic3796_post15156.html#15156 <![CDATA[How to print a transparent png file on top of text : I am working with quick pdf 17....]]> http://www.quickpdf.org/forum/how-to-print-a-transparent-png-file-on-top-of-text_topic3796_post15155.html#15155 Author: frederik
Subject: 3796
Posted: 18 Mar 20 at 2:57PM

I am working with quick pdf 17. Working/printing images works fine. But not I want to print a signature.png file (which is transparent) on top of text that is generated and printed on the pdf page. 
The result should look like a company/stamp signature on top of the text. 

I tried 
.SetPNGTransparencyColor(255 / 256, 255 / 256, 255 / 256)'
and
.SetImageMask(1, 1, 1, 0.1, 0.1, 0.1)
but is does not change... the image is printed with a fixed white background and destroying the text. 

I use the following simple code: 

   Call .AddImageFromFile(FileNameOfImageFile, 0)
   Call .SetPNGTransparencyColor(255 / 256, 255 / 256, 255 / 256)
   Call .FitImage(topX, topY, SizeWidth, SizeHeight, 1, 1, 0)

]]> Wed, 18 Mar 2020 14:57:28 +0000 http://www.quickpdf.org/forum/how-to-print-a-transparent-png-file-on-top-of-text_topic3796_post15155.html#15155