2002.08.16 07:39 "Re: How to read number of pages for multipage TIFF", by Andreas R. Kleinert
Could you please advise the method to retreive the number of pages from multipage TIFF frile.. I know this is a tag 297(129H) ...but how to read it?
Two possible answers, depending on what you meant:
- The same way as any other tag.
- The same way as in tif_dir.c - which has functions for this - or by
- scanning the file on your own, following the offset to the first
- directory as given in the header.
For 2. the answer is:
tif = TIFFOpen(name, "rb");
pages = TIFFNumberOfDirectories(tif);
TIFFSetDirectory(tif, n); // where n is 0..(pages-1)
For 1. the point is:
TIFFGetField() or custom code.
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