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the following situation baffled me slightly: After preparing a pdf in a different program I wanted to make sure the dpi of an embeded image in the pdf file had the right dpi, yet I found no way in acrobat pro to inspect the file/image dpi.

Can that be, or am I missing where this feature is hidden?

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Strictly speaking, it's PPI (pixels per inch), not DPI (printed dots per inch) –  e100 Feb 20 '12 at 17:59
Quite right indeed. –  kontur Feb 20 '12 at 21:36

1 Answer 1

up vote 4 down vote accepted

You can use the build in Preflight function. [I don't know when it has been introduced but its there in Acroboat 9 Pro and above]

Advanced > Preflight [Keyboard Shortcut Shift + Ctrl + X ]

Have a look at this video to see what I mean:


There are also other plugins and stuff, but as there is this built in option I don't think you'll need it.

For more stuff on the topic just google for " image dpi in pdf " and you'll find lots on the topic.

Good Luck!

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Ah, okay, so one has to run a preflight, and the the images (and their dpi) is found in the results list. Thank you. –  kontur Jan 27 '12 at 14:28
It may not give you the Effective PPI of the image, but occasionally I just use the "Edit Object" tool to open an image from a PDF in Photoshop, just to do a quick check on the resolution. –  GoofyMonkey Jun 16 '14 at 19:46

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