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How do I change pixel/mm to dpi in Acrobat Object Inspector?

Explorer ,
Mar 03, 2023 Mar 03, 2023

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Hey there,

I just wanted to check the resolution of an image in a PDF-file and the object inspector showed the resolution in pixel per mm (pixel/mm), which is absolute horsepoo. How do I change that in dpi?

Thanks!

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General troubleshooting , Print and prepress

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Community Expert ,
Mar 05, 2023 Mar 05, 2023

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Why is that horsepoo?

 

Inch and mm are units, so try changing the unit from mm to inch. All your measures will be in inches then.

 

I'm on PC, so it's for me under Edit→Preferences.

 

You can also simply multiply the value by 25.4 (one inch is 25.4 mm)

ABAMBO | Hard- and Software Engineer | Photographer

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Explorer ,
Mar 06, 2023 Mar 06, 2023

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It is, because the common, established unit for print resolution is dpi and not pixel per millimeter, but for everything else we do use the metric system. So using inches instead of mm in general is not an option. Were american developers involved, who are blind on that eye?

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