Direct answer. In PrintExactly, set the photo to 2 × 2 in (51 × 51 mm), place it on a sheet that matches the loaded paper, verify the printable area shows the full 2 × 2 box, then print at 100% scale with Scale to Fit off.

The 3-step method

  1. Set the Photo Frame to 2 × 2 in (51 × 51 mm). Open PrintExactly and type the Frame width and height in inches or millimeters. 2 × 2 in = 51 × 51 mm, which is also the U.S. passport photo Frame size.
  2. Match the loaded paper. PrintExactly's page size should match the paper in the printer tray. A single 2 × 2 fits any sheet larger than 2 × 2; arrange as many copies as the job needs.
  3. Print at 100% scale. Confirm Scale to Fit is off, Scale is 100%, and the printable area shows the photo fully inside. Send to the macOS print panel and print.

Why a 2 × 2 photo prints the wrong size on Mac

  • Borderless expansion. Borderless modes shift the printed size by 1–2% to fill the paper edge. Use a bordered paper size or accept the small shift.
  • Photo drift. If the printed 2 × 2 measures 1.95 × 1.95 or 2.05 × 2.05, the macOS print panel is silently scaling. Turn off Scale to Fit.

Frequently asked questions

How big is 2 × 2 in millimeters?

2 × 2 inches = 50.8 × 50.8 mm, typically rounded to 51 × 51 mm. PrintExactly accepts both forms.

Can I print multiple 2 × 2 photos on one Mac page?

Yes. Set copies per item, use Fill Page for one photo group, or use Auto Arrange to pack the 2 × 2 items across the sheet.

Print a photo at exact size on Mac · Full exact-size Mac guide