Resize a Photo to 3 × 4 Inch (900 × 1200 px)

The 3 × 4 inch print is the classic album and small-frame size, and stamp-size photos in many Indian applications ask for the same ratio.

At the print standard of 300 DPI, 3 × 4 inch means exactly 900 × 1200 pixels. Upload anything smaller and the printer silently upscales it into mush; upload a different ratio and the lab crops your subject without asking.

The millimetre resizer crops to the true 3:4 aspect with focus sliders, so you decide what stays in frame, then scales to 900 × 1200 and writes real DPI metadata. Print drivers read the file as a physical 3 × 4 inch sheet, not a pile of pixels.

Prefer a ready preset? The 4R preset (102 × 152 mm) covers the slightly larger standard print, and the custom fields accept any inch-to-mm size you need.

How to make a 3 × 4 inch print file

1. Open the resizer and pick Custom mm size.
2. Enter 76.2 × 101.6 mm at 300 DPI.
3. Frame the subject with the focus sliders.
4. Resize and download | the JPEG carries true 300 DPI metadata.

Other print sizes