I suspect your PDF's media/crop/etc boxes aren't set to 0,0,wid,heigh,
but Something Else.
You need to take the page's actual lower left corner into account when
you set the CTM. Your current code ass-u-mes 0,0, and it looks like its
wrong in this case.
--Mark Storer
Senior Software Engineer
Cardiff.com
import legalese.Disclaimer;
Disclaimer<Cardiff> DisCard = null;
________________________________
From: Dean Krueger [mailto:[email protected]]
Sent: Monday, May 10, 2010 11:15 AM
To: [email protected]
Subject: [iText-questions] Problems with ConcatCTM
Hi,
I have a PDF that I am changing the art,trim,crop and media
boxes, using PdfContentByte.ConcatCTM and writing to a PdfStamper
object. This has always worked, until I came across this one PDF file.
It seems that when I set the offset of the page all but one logo is
moving. You can see the offset in the screen shot supplied. This is a
single page PDF, can anyone think of what could possibly causing this. I
have never seen this happen to any pdf before, normally when its offset
the entire pdf moves as expected. I can furnish the PDF if anyone would
like to see it, its 19meg.
This is the main guts to the code:
byte[] b = Reader.GetPageContent(page);
PdfContentByte cb = new PdfContentByte(null);
cb.ConcatCTM(1, 0, 0, 1, -5f, -5f);
Thank you for any idea's!
Dean
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