Question

I need to get a list of chapters of pdf document programmatically in Objective C. I’ve googled, someone said that CGPDFDocumentGetCatalog may helpful but I don’t know how to use it.

Answer 1

Use the PDFDocument class in the PDFKit Framework, something like this:

PDFDocument* pdfDoc = [[PDFDocument alloc] initWithURL:... ];
PDFOutline* pdfOutline = [pdfDoc outlineRoot];