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Known Participant
August 9, 2019
Question

In PS why do I see actual document dimensions only when I manually set view settings to 38% zoom? Anyone has clues?

  • August 9, 2019
  • 2 replies
  • 540 views

I have already changed the monitor dpi settings in Preferences under 'Units & Rulers' to 227 (applicable for mbPro 13 inch), in place of the default 72.

When I click on View Print Size, I get a 76% zoom view, which is far bigger than the actual dimensions of the document. By hit and trial I noticed when the zoom is changed to 38% then it displays on the monitor closest to the actual print size.

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2 replies

D Fosse
Community Expert
Community Expert
August 11, 2019

Most applications, when detecting a high density display, pixel-double (scale up) to display at roughly the same screen size as on a traditional display. Photoshop, as a critical pixel editor, can't do that.

In other words, the problem isn't Photoshop, it's the other applications. They are displaying incorrectly - basically turning your high resolution display into a low resolution one.

For text and vector this is even less of a problem because you can scale up without any loss of quality. So it's routinely done. Even Illustrator and InDesign will scale up without any issues.

Michael J. Hoffman
Community Expert
Community Expert
August 9, 2019

It sounds to me like it’s because of pixel doubling for hi dpi displays. I suppose you’d get the expected results if you changed your monitor dpi to half of 227 (114, maybe).

hSinghAuthor
Known Participant
August 9, 2019

What is the reasoning behind that Michael, would you happen to know?

Michael J. Hoffman
Community Expert
Community Expert
August 11, 2019

Here’s an older article that explains it well. I wouldn’t think it would apply to images, rather just to text and User Interface, but the measurement observations you’ve made fit this exactly.