On Sep 8, 2009, at 8:07 PM, DairyKnight wrote:
I'm trying to convert my program with PDFKit to CGPDF to get better
performance. I'm trying to crop a page, with PDFPage I can simply do:
[PDFPage setBounds: forBox:kPDFDisplayMediaBox];
But for CGPDFPageRef, there seems to be only a CGPDFPageGetBoxRect
available. I wonder if I can simply change the mediabox with a
function?
CGPDFDocumentRef (and associated data types) are read-only. If you
need to change something about a PDF, you need to create a
CGPDFContext and draw the old PDF into the new one. This is one of
many details that PDFKit hides from you, so I would likely try to
solve your issues with PDFKit rather than rewriting your code to use
CG directly.
--
David Duncan
Apple DTS Animation and Printing
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