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Step 7: Enter New Width.

A pop-up "Resample" or "RESIZE" window will appear. Click your mouse within the first of the two upper boxes on the right-hand side of the pop-up window (see the screenshot) - this box contains a number that represents the current width of your image (in pixels). Delete the current number and enter 350 in its place. Don't bother with the second number (height), as the program will adjust this upon saving. Critical: Make sure the box marked "Maintain Aspect Ratio" is checked. Then Click "OK." Everything else will adjust automatically.

   

Step 8: Choose "Save As" from the "FILE" menu.

Now it's time to save all of your work. Move the mouse to the "FILE" menu, click, scroll down and select "Save As," which will take you to the next pop-up window....