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q : quartz-dev@lists.apple.com 19 December 2005 • 12:57AM -0500

Extracting PDF Contents
by Nick Nallick

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When Panther was young I filed an enhancement request (rdar://
3569618) to expose an API to extract images, color profiles, font  
IDs, unicode text, etc. from PDF documents.  In the early days of  
Tiger this bug report was closed and I got a message saying it was in  
Tiger.  I don't have the message anymore but my impression was that  
this could be done using the new PDF scanner features (or perhaps  
PDFKit) in Tiger.  I've been reviewing these API's recently and I  
can't find a way to do this.  Am I just missing something, or should  
I reopen this enhancement request?

For example, consider the case of converting a bitmap image embedded  
in a PDF document into a CGImageRef with the correct color profile.  
Frequently this is fairly straightforward, but it can get very  
complicated.  Surely Quartz is already doing this when it renders the  
PDF document and I'd rather not reinvent that wheel if I can help  
it.  The same is true of getting a Mac font ID from a PDF font  
reference.

Thanks,
Nick
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