The following situation baffled me slightly: after preparing a pdf in a different program I wanted to make sure that an embeded image in the pdf file had the right dpi, yet I found no way in adobe acrobat pro to inspect the file/image dpi.
Can that be, or am I missing where this feature is hidden?
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.
Source : Link , Question Author : kontur , Answer Author : Flavius Frantz