Re: PDFDocuments and CGPDFDocuments

FROM : John Calhoun
DATE : Mon Jun 02 20:10:16 2008

On May 31, 2008, at 3:43 PM, Kevin Ross wrote:
> My ultimate goal is an application that is like a printer's PDF 
> workflow, that will allow page manipulations like resizing / 
> cropping / adding bleed information, and imposing multiple pages 
> onto one with crop marks and the like.  After researching it seems 
> like some of the functions (imposition with crop marks, page 
> cropping/scaling with/without preserving aspects, etc) are best 
> suited for quartz, while the rest (page reordering/inserting, 
> rotating, etc) have Cocoa APIs.



Well, FWIW, Apple's Preview is cropping in PDF Kit ... basically you 
call -[setBoundsForBox:] on the PDFPage in question.

Additionally you should probably look into subclassing PDFPage. 
Within that domain you can overlay crop marks, apply additional 
transforms, etc.

See PDFCalendar sample code for a PDFPage subclassing example.

John Calhoun—_______________________________________________

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