I know this is an unsophisticated solution, but you can take advantage of the fact that usually in portrait documents the "x" dimension is smaller than "y" ; in landscape documents the reverse is true.

So by comparing "x" with "y" you can get a rough estimate of whether the document is in portrait or landscape mode.

Hope I understand your problem correctly.

In reply to Re: Determining a PDF's orientation by calin
in thread Determining a PDF's orientation by friedo

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