Re: How to set the media box for a CGPDFPageRef?
Re: How to set the media box for a CGPDFPageRef?
- Subject: Re: How to set the media box for a CGPDFPageRef?
- From: DairyKnight <email@hidden>
- Date: Sun, 20 Sep 2009 12:24:21 +0800
OK. I'm using PDFKit now. Thanks for your advice.
On Thu, Sep 10, 2009 at 4:04 AM, David Duncan <email@hidden>wrote:
> 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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