Images
How to Make a Passport Photo the Right Size
Get the official spec from the issuing authority, convert it to pixels, then crop to ratio before resizing. The method works for any country's rules.
8 min read
Dimensions
4 guides tagged “Dimensions”.
Images
What Does 300 DPI Actually Mean?
DPI is a printing instruction stored as one number in a file's metadata. It describes how pixels map to paper, and it means nothing on a screen.
7 min read
Images
Photo Rejected for Wrong Dimensions: Pixels, cm and DPI Explained
A form asks for 3.5 x 4.5 cm at 200 DPI and your photo is 4032 x 3024. Here is the arithmetic that converts one into the other, and how to resize to it.
7 min read
Images
Reduce Photo Size on iPhone or Android Without an App
You do not need a photo resizer app. Cropping, the Files app conversion, Mail's resize prompt and your camera settings all shrink photos using built-in tools.
7 min read