Adobe Photoshop’s rulers are really useful when you’re cropping, combining, or otherwise editing your images. counting on what you’re doing, you would possibly want them to display pixels, percentages, or maybe inches.
Here’s the way to change their units.
If you don’t see the rulers on the sting of your document, attend View > Rulers, or use the keyboard shortcut Control+R (Command+R on a Mac).
You can hide the rulers if you don’t need them. Use an equivalent commands.
Picas (1 pica = 12 points)
The quickest thanks to change between them is to right-click on a ruler and choose the choice you would like from the menu .
You can also change the unit through Photoshop’s preferences pane. attend Edit > Preferences > Units & Rulers. (On a Mac, attend Photoshop > Preferences > Units & Rulers.)
Under “Units,” click the “Rulers” dropdown, then select the units you would like to use.
Note: once you change the ruler units in one document, it changes them altogether your open Photoshop documents.
Can You Change the Default Ruler Units?
Unfortunately, there’s no way to change the default ruler units or set them to match your images’ measurements. Photoshop remembers the last unit you used.
Can You Set Different Ruler Units for Different Documents or Presets?
Again, unfortunately not—you can’t set different ruler units for different documents in the application. The ruler unit is a global setting. If you change it in one Photoshop document, it’s changed in all Photoshop documents.
(Yes, this is super annoying if you’re editing images and laying out print designs at the same time.)