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I have an image that if I right click on and go to properties>details it tells me the resolution is 96 DPI. If I open the image in Photoshop, it gives me a PPI of 72. I'm wondering why they are different and why does it give me DPI instead of PPI when I right click on the photo? Thanks!

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    Possible duplicate of Why does Photoshop call ppi "resolution"? – Manly Aug 3 '16 at 14:36
  • The accepted answer there should explain well enough the answer to your question – Manly Aug 3 '16 at 14:37
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    What I don't understand is that every other photo I checked, the DPI and the PPI are the same. It seems when I get an image that is 96 DPI under properties>details then most of the time it shows a PPI of 72 in Photoshop. – user1527555 Aug 3 '16 at 14:45
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I have an image that if I right click on

On windows? On the file manager?

96 ppi is a default resolution asigned to untaged images on windows. 72 ppi is one standarized for some other aplications.

I do not know why they are diferent in your document. There is a chance your image simply has not that value asigned and the two aplications are just asigning the default one. No big deal.

DPI is an incorrect terem. A DPI is a value for prints, not for electronic images. Some aplications simply has that term wrong.

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    The why is because 72ppi was Apples actual monitor resolution way back when (specifically so it would work nicely with the 144dpi printer). Windows decided to create a default roughly 1/3 larger than that to get around some idea about monitor vs paper viewing distance... or something like that. But it's basically all irrelevant now anyway :) – Cai Aug 3 '16 at 19:07
  • I meant I do not know why the user's document is diferent. I do know the historical reasons ;o) but thanks. – Rafael Aug 3 '16 at 19:17
  • Oh, right. Then yeh it would be because the image has no ppi set and is taking the different defaults.. As you said :) – Cai Aug 3 '16 at 19:28

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