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2014/10/15 ¤U¤È 10:05:00
iphone Programming Glossary: cgcontextdrawpdfpageAnnotate PDF within iPhone SDK http://stackoverflow.com/questions/2313008/annotate-pdf-within-iphone-sdk CGContextScaleCTM currentContext 1.0 1.0 CGPDFPageRef page CGPDFDocumentGetPage document 1 grab page 1 of the PDF CGContextDrawPDFPage currentContext page draw page 1 into graphics context flip context so annotations are right way up CGContextScaleCTM currentContext..
Reading PDF files as string through iPhone application http://stackoverflow.com/questions/2362393/reading-pdf-files-as-string-through-iphone-application find anything NSLog @ @ testing it s CFRelease s CFDataRef data CGPDFStreamCopyData stream CGPDFDataFormatRaw CGContextDrawPDFPage myContext page 3 CGContextTranslateCTM myContext 0 20 CGContextScaleCTM myContext 1.0 1.0 CGPDFDocumentRelease document..
CGContextDrawPDFPage taking up large amounts of memory http://stackoverflow.com/questions/2975240/cgcontextdrawpdfpage-taking-up-large-amounts-of-memory taking up large amounts of memory I have a PDF file that I want to draw in outline form. I want to draw the first several.. their own UIImage to use on a button so that when clicked the main display will navigate to the clicked page. However CGContextDrawPDFPage seems to be using copious amounts of memory when attempting to draw the page. Even though the image is only supposed to.. g t Finally draw the page The important bit. Commenting out the following line fixes the crashing issue. CGContextDrawPDFPage g m_page CGContextRestoreGState g Is there a better way to draw this image that doesn't take up huge amounts of memory ..
iPhone, CGPDFDocument - PDF links http://stackoverflow.com/questions/3257057/iphone-cgpdfdocument-pdf-links context pdfTransform Finally we draw the page and restore the graphics state for further manipulations CGContextDrawPDFPage context page CGContextRestoreGState context As I understand its only drawing so all structure navigation or outgoing links..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints ctx kCGInterpolationHigh CGContextSetRenderingIntent ctx kCGRenderingIntentDefault before CGContextDrawPDFPage to reduce memory usage while drawing init'ing your NSOperations with a docRef is a bad idea memory wrap the docRef into.. CGPDFPageGetDrawingTransform pdfPage kCGPDFMediaBox layer.bounds 0 true CGContextConcatCTM context pdfToPageTransform CGContextDrawPDFPage context pdfPage issue is the object containg the CGPDFDocumentRef . I synchronize the part where I access the pdfDoc property..
http://stackoverflow.com/questions/3908624/cgcontext-pdf-page-aspect-fit ctx 1.0 1.0 CGContextConcatCTM ctx CGPDFPageGetDrawingTransform myPageRef kCGPDFBleedBox layer.bounds 0 true CGContextDrawPDFPage ctx myPageRef The problem is that the pdf page is getting drawn on the center of the page leaving border on all four sides... scaleToApply xScale yScale xScale yScale CGContextConcatCTM ctx CGAffineTransformMakeScale scaleToApply scaleToApply CGContextDrawPDFPage ctx myPageRef So work out how much you'd have to scale the document by for it to occupy the entire width of the view how..
how to fit pdf page in entire view http://stackoverflow.com/questions/4321681/how-to-fit-pdf-page-in-entire-view CGContextSetInterpolationQuality ctx kCGInterpolationHigh CGContextSetRenderingIntent ctx kCGRenderingIntentDefault CGContextDrawPDFPage ctx myPageRef CGContextRestoreGState ctx loadingIndicator stopAnimating loadingIndicator1 stopAnimating loadingIndicator2..
problem with rendering pdf on the entire screen of pdf http://stackoverflow.com/questions/4634331/problem-with-rendering-pdf-on-the-entire-screen-of-pdf CGContextSetInterpolationQuality ctx kCGInterpolationHigh CGContextSetRenderingIntent ctx kCGRenderingIntentDefault CGContextDrawPDFPage ctx myPageRef I pasted all the code which i tried in drawlayer. I gave many random numbers to fit the page entire screen..
Rendering a CGPDFPage into a UIImage http://stackoverflow.com/questions/4639781/rendering-a-cgpdfpage-into-a-uiimage context 1.0 1.0 CGContextConcatCTM context CGPDFPageGetDrawingTransform page kCGPDFMediaBox pageRect 0 true CGContextDrawPDFPage context page CGContextRestoreGState context UIImage thm UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext..
Creating pdf Thumbnail in iphone http://stackoverflow.com/questions/5658993/creating-pdf-thumbnail-in-iphone CGRectGetMaxY pageRect CGContextScaleCTM context 1 1 CGContextTranslateCTM context pageRect.origin.x pageRect.origin.y CGContextDrawPDFPage context pageRef UIImage finalImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return finalImage..
http://stackoverflow.com/questions/6553540/merge-pdf-files-on-ios pdfRef1 i mediaBox CGPDFPageGetBoxRect page kCGPDFMediaBox CGContextBeginPage writeContext mediaBox CGContextDrawPDFPage writeContext page CGContextEndPage writeContext Read the second PDF and generate the output pages NSLog @ GENERATING PAGES.. pdfRef2 i mediaBox CGPDFPageGetBoxRect page kCGPDFMediaBox CGContextBeginPage writeContext mediaBox CGContextDrawPDFPage writeContext page CGContextEndPage writeContext NSLog @ DONE Finalize the output file CGPDFContextClose writeContext Release..
http://stackoverflow.com/questions/6914906/add-annotation-to-pdf url CGContextRef pdfContext UIGraphicsGetCurrentContext CGPDFPageRef page CGPDFDocumentGetPage templateDocument 1 CGContextDrawPDFPage pdfContext page const char text second line CGContextShowTextAtPoint pdfContext 10 30 text strlen text CGContextEndPage.. 1 CGRect pdfCropBoxRect CGPDFPageGetBoxRect pdfPage kCGPDFMediaBox CGContextBeginPage destPDFContext pdfCropBoxRect CGContextDrawPDFPage destPDFContext pdfPage Close the source file CGPDFDocumentRelease sourceDoc Draw the text const char text second line CGContextShowTextAtPoint..
Is it possible to combine multiple pdf files into a single pdf file programmatically in iphone? http://stackoverflow.com/questions/9646203/is-it-possible-to-combine-multiple-pdf-files-into-a-single-pdf-file-programmatic newUrl Get the page you want CGPDFPageRef newPage CGPDFDocumentGetPage newDocument pageNumber Drawing the page CGContextDrawPDFPage currentContext newPage Clean up newPage nil CGPDFDocumentRelease newDocument newDocument nil newUrl nil UIGraphicsEndPDFContext..
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