Debenu Quick PDF Library - PDF SDK Community Forum : size reduction and dpi http://www.quickpdf.org/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sun, 05 Apr 2026 13:24:44 +0000 Tue, 14 Feb 2012 15:13:05 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.01 360 www.quickpdf.org/forum/RSS_post_feed.asp?TID=2146 <![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[size reduction and dpi : thanks Werner. I&#039;d missed...]]> http://www.quickpdf.org/forum/size-reduction-and-dpi_topic2146_post9122.html#9122 Author: rweetch
Subject: 2146
Posted: 14 Feb 12 at 3:13PM

thanks Werner. I'd missed this function! definatelt what we need!]]> Tue, 14 Feb 2012 15:13:05 +0000 http://www.quickpdf.org/forum/size-reduction-and-dpi_topic2146_post9122.html#9122 <![CDATA[size reduction and dpi : Hi,you have to do a small calculation...]]> http://www.quickpdf.org/forum/size-reduction-and-dpi_topic2146_post9108.html#9108 Author: edvoigt
Subject: 2146
Posted: 11 Feb 12 at 6:02PM

Hi,

you have to do a small calculation before rendering. I do it only for width, assuming the format ist in source and target exactly DIN.

A1 is 594mm, A4 210 in the width. That means the size should go down by 210/594.

So we use this for SetRenderscale(210/594). I like this function!

After this a rendering with 72dpi should give an image with the right format (A4 at 72dpi).

This is: 210*72/25.4=595 pixels.

Resulting image should became 595x842

Cheers,
Werner


]]> Sat, 11 Feb 2012 18:02:28 +0000 http://www.quickpdf.org/forum/size-reduction-and-dpi_topic2146_post9108.html#9108 <![CDATA[size reduction and dpi : My client wants me to create images...]]> http://www.quickpdf.org/forum/size-reduction-and-dpi_topic2146_post9101.html#9101 Author: rweetch
Subject: 2146
Posted: 11 Feb 12 at 12:34AM

My client wants me to create images of a pdf at A4 size at 72dpi. The actual size of the pdf is A1 - any ideas about the best way to go about this?
 
Thanks
]]> Sat, 11 Feb 2012 00:34:33 +0000 http://www.quickpdf.org/forum/size-reduction-and-dpi_topic2146_post9101.html#9101