I have a PDF file, which has 10 layers, with Adobe's PDF reader or other goodreader other readers read, it will be reality by default all layers. There are no third-party api allows me to parse this PDF file, then can they know how many layers, and then dynamically control the display or hide a layer.
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I remember that Adobe had SDK, but it is estimated will look very big head
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10 Layers What does it mean?
10 do?
CGPDFDocument.h search
CGPDFDocumentGetPage
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Haha that would not work.
According to the binary loaded into NSData, and then follow the PDF format parse it yourself. http://www.adobe.com/devnet/pdf/pdf_reference.html
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