Re: PDF rendering & black background?
Re: PDF rendering & black background?
- Subject: Re: PDF rendering & black background?
- From: Robert Miller <email@hidden>
- Date: Tue, 17 Jul 2001 14:31:07 -0400
- Organization: RFM & Associates
That's got it !! Thanks !
Brian Webster wrote:
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on 7/17/01 11:37 AM, email@hidden at
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email@hidden wrote:
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> I'm trying to display a PDF file(s) using an NSImage object and when
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> the image gets drawn via
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>
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> [myNSImage drawInRect: destR fromRect: sourceR operation:
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> NSCompositeCopy: fraction: 1.0]
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>
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> the entire background comes up black, except for places where there are
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> some line objects, etc. in the PDF doc. , they are displayed correctly
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> within their own bounds rects. I tried using XOR compositing but that of
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> course inverts the line obects etc. Is there some special setting(s) for
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> rendering PDF correctly ?
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>
Try using NSCompositeSourceOver instead of NSCompositeCopy. That should
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cause it to only render the PDF content where there is actually content, and
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not render the background. At least, that's the way it works for TIFFs,
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etc.
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--
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Brian Webster
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email@hidden
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http://www.owlnet.rice.edu/~bwebster/