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Re: PDFDocuments and CGPDFDocuments

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Re: PDFDocuments and CGPDFDocuments

Subject: Re: PDFDocuments and CGPDFDocuments
From: John Calhoun <email@hidden>
Date: Mon, 2 Jun 2008 11:10:16 -0700

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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