Apr 27 2009
There are at least two ways to switch between the various measurement units
that Photoshop displays.
One is to change them in your Preferences by going to the Photoshop menu under
Preferences and choosing Units & Rulers (in Photoshop 7 under Mac OS 9,
Preferences is found under the Edit menu). From here you can change the ruler
units and click OK.
The second way is to open the Info Palette (go to the Window menu and choose
Info) and click on the small triangle next to the cross in the lower left quadrant.
This will bring up a menu that will allow you to change units on the fly.