Legacy ImageMagick Discussions Archive

Hello,

I've been trying to get the exact size of a PDF document without success.

My test document is A4 (210mm x 297mm) which is 595.28pt x 841.89pt.

When I do :

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identify -format "%[fx:w]x%[fx:h]" testpdf.pdf

I get :

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595x842

If I do :

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identify -format "%@" testpdf.pdf

I get :

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342x54+133+239

And when I do :

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identify -verbose testpdf.pdf

There is a section with :

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Properties:
    create-date: 2010-08-22T19:02:05+00:00
    modify-date: 2010-08-22T19:02:05+00:00
    pdf:HiResBoundingBox: 595.28x841.89+0+0
    pdf:Version: PDF-1.3
    signature: bb3128cf288b1737dc3a29250cef1da8cb14302dd4e9e7f75c47901d77b62f83

If I convert 595 to mm I get 209.9mm but if I convert 596.28 I get 210mm

I need to be able to upload my PDF document and automatically get the exact PDF size. Can I get the HiResBoundingBox value using identify ?

Thank you !

I don't believe that PDF files have a unique pixel size as they are vector format. They are controlled by the density you assign to them when you convert to some raster format. However, any pictures contained in the PDF will have their own size.

You should be able to retrieve the exact "HiResBoundingBox" value (which is the MediaBox value in PDF) with:

Code: Select all

identify -format "%[pdf:HiResBoundingBox]" testpdf.pdf

Thanks - Works great !

Legacy ImageMagick Discussions Archive

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