Photo printing guides

Updated 3 October 2026

Short, practical guides to printing photos at the size you mean from an iPhone or iPad, in inches and millimetres.

Start with your measurements

Photo size & resolution calculator

Convert inches, centimetres and millimetres. Find pixel targets and common print sizes.

2 × 2 in, 1 × 1 in, 35 × 45 mm, 33 × 48 mm and 50 × 70 mm photos, several to a 4 × 6 or A4 sheet.

Why the Photos app scales or crops, choosing the paper in AirPrint, borderless 4 × 6 paper and PDFs at 100%.

Several photos, in one size or mixed sizes, on one sheet at their real printed size.

Fit to page, PDF viewer scaling, printer margins, and how to check a print with a ruler.

Exact 50.8 mm dimensions, paper choices and a step-by-step sheet workflow.

Exact 25.4 mm dimensions, multiple copies and print scaling tips.

Make a 35 × 45 mm photo sheet on iPhone. Check the exact size, cropping, paper margins and PDF scaling before you trim.

Print 2 × 3 inch wallet photos or a custom frame size from iPhone. Learn Fit versus Fill, sheet layout, pixel targets and trimming.

Export a photo sheet from iPhone and print it at 100% without unwanted scaling. Includes a print-shop checklist and ruler verification.

Calculate pixels for 4 × 6, 2 × 2 and 35 × 45 mm prints. Understand print quality, cropping, and the difference between PPI and printer DPI.

Troubleshoot iPhone photo printing: AirPrint discovery, loaded paper, clipped edges and PDF fallback without changing your photo dimensions.

The guides use Photo Print: Size & Layout for the app steps; the advice on print settings, paper and measuring applies to any app.