Left side - the result of downscaling the image from 1800px (height) to 1200px in the Mac OS Image Preview utility. Right side - the same downscaling in Photoshop (Menu: Image->Image Size...) You can see significant visual distortions of the photoshop version. How can I avoid this weird behavior?

UPDATE: OK, I've figured out that it happens only when scaling PSD, when I save unscaled image as PNG, and then re-open and downscale it in photoshop, it works perfectly! What's wrong with scaling in PSD?

enter image description here

  • What settings do you use in the Resize Image dialog? – Jongware Jul 2 '16 at 17:38
  • I tried all interpolation methods, no luck with any... – m8labs Jul 2 '16 at 17:44
  • Did you save both files in the same format? I’m asking because maybe this is just a problem with the PSD preview. It would also be great if you could provide us with the Original image, so we can try to reproduce the problem. – mnxd Jul 2 '16 at 19:00
  • Was the simulated screen a smart object/smart layer? – Yorik Aug 3 '16 at 14:06

Resizing is not a good approach,

Goto File>Export as Select Format and Resolution plus dpi form there...

Photoshop File Export You'll get the best result.

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Finally, it turned out that scaling PSD is totally wrong approach. There is an option "Save for Web" (also "Export As" in CC 2015.5) where target size could be selected.

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