If you’re like most people, you probably print your photos and images at a resolution of 300 DPI. But what if you want to set your Photoshop document to 300 DPI? Here’s how:

  1. In Photoshop, open the document you want to set the resolution to.
  2. Go to File > Print > Settings and make sure the Resolution box is checked.
  3. Change the Resolution value in the Settings box to 300 DPI (or whatever resolution you want).
  4. Click OK in the Print Settings dialog box and Photoshop will automatically change the document’s resolution to 300 DPI. ..