About this site

PhotoSize Lab is a browser-only ID photo tool. It exists for a simple reason: most "online passport photo" sites want you to upload your picture, wait for a server, then sign up or pay to remove a watermark — when the whole job can be done on your own machine.

What it does

43 built-in specifications covering Chinese ID documents, exam registrations and visas worldwide. Crop, replace the background, compress to a required file size and lay out a print sheet in one pass — no account, no fee, no watermark.

Under the hood

A fully static site: no backend, no database, no third-party image API. Processing uses the native Canvas API, background removal uses edge flood-fill with feathering, and compression uses a binary search over JPEG quality. It works offline.

Contact

hello@example.com