How to get Photoshop to display actual print resolution

1. Create a blank document that has 300 dpi print resolution, 9″ x 9″ in dimensions.

2. Fill it with white if it is not already filled

3. From the menu choose “View/Print Size”

4. With an accurate ruler and using great care not to damage your screen measure the displayed dimensions in inches. In all likelihood it will be a good deal smaller than 9 inches

5. Divide 9 inches by the actual measurement you obtain from the screen which will provide the correction factor. I am not using an example since this number may vary from one screen to another.

RKNOTE: My monitor displayed an image 6 inches wide. 9 divided by 6 = 1.5

6. Now, go to “Edit/Preferences/Units & Rulers” and find the screen resolution. Most likely it is set at 72 pixels/inch

7. Multiply the current ppi, 72, by the correction factor you calculated above and enter that in the screen resolution field. Click OK.

RKNOTE: 72 x 1.5 = 108

The resulting screen resolution may have a decimal fraction, that’s OK.

From now on, when you choose “View/Print Size” your screen will display the actual dimensions of the print.

RKNOTE:
For my 17.3 inch Laptop, the settings of 108 dpi in Photoshop automatically displays Print Size at actual resolution.