iPhone, CGPDFDocument - PDF links
问题 I'm trying to write a simple PDF viewer using CGPDFDocument, based on QuartzDemo. There is common rendering: -(void)drawInContext:(CGContextRef)context { // PDF page drawing expects a Lower-Left coordinate system, // so we flip the coordinate system before we start drawing. CGContextTranslateCTM(context, 0.0, self.bounds.size.height); CGContextScaleCTM(context, 1.0, -1.0); // Grab the first PDF page CGPDFPageRef page = CGPDFDocumentGetPage(pdf, pageNumber); // We're about to modify the