The following code converts a PDF page into a JPEG. It runs as expected on Snow Leopard:
...
//get the image from the bitmap context
CGImageRef image = CGBitmapContextCreateImage(outContext);
//create the output destination
CGImageDestinationRef outfile = CGImageDestinationCreateWithURL(fileUrl, kUTTypeJPEG, 1, NULL);
//add the image to the output file
CGImageDestinationAddImage(outfile, image, NULL);
CGImageDestinationFinalize(outfile);
...
This code fails when compiled for iPhone because the iPhone version of Core Graphics does not include CGImageDestinationRef
. Is there any way to save CFImageRef
to a jpeg using the native iPhone frameworks and libraries? The only alternative I can think of is to ditch Core Graphics and use ImageMagick.