Where I can get hyperlinks in pdf document structure (except "Annots" entry in page dictionary)?

Question

Hi,

I have two pdf documents (doc1 and doc2) with hyperlinks e.g www.somlink.com, www.somlink2.com. According to PDF Specification I can get those hyperlinks via Link Annotations. Link Annotations can be found in pdf page's dictionary under "Annots" key.

    CGPDFDictionaryRef pageDictionary = CGPDFPageGetDictionary(someCGPDFPage);
CGPDFArrayRef annots;
CGPDFDictionaryGetArray(pageDictionary, "Annots", &annots);

So the problem is that in one pdf document (doc1) I get that "Annots" array but in another document (doc2) there is no such entry in page dictionary. And the thing is that with PDFKit.framework you can get those annotations in PDFPage class using - (NSArray *)annotations method even if there is no "Annots" entry in page dictionary.

I can't use PDFKit.framework on iPad/iPhone so I am working with Quartz framework :)

So it seems that there is another place where you can specify hyperlinks (or Link Annotations in PDF Reference), not only in "Annots" array and PDFKit.framework somehow know ho to do that.

Any ideas where can I get those hyperlinks?

Answer 1

is there any way to get converted whole pdf content in to a string and store in a NSString?