I only know "600×600" — is that enough?

It is a start. Open the 600×600 / CEAC preset so background and head-height rules are applied, not just the pixel box.

Do you support custom sizes?

Where the catalog lists a preset, yes. For uncommon sizes, start from upload and pick the closest supported flow when offered.

Millimetres vs pixels — which should I trust?

Portals care about pixel width and height; print shops care about mm on paper. Presets translate the published tables into the upload file the website actually ingests.

UploadPhoto.org

Photo sizes explained — then jump straight into the right preset

Most DIY rejections are just wrong width, height, or aspect ratio. Use this hub to understand the numbers your PDF quotes, then launch the uploader with a preset that already encodes those dimensions so you are not guessing in an image editor at midnight.

Covers common government boxes: 2×2 inch digital, 35×45 mm Schengen-style, 600×600 CEAC, and other catalog entries that map 1:1 to live presets.
Already know the form name? Start from documents search and deep-link into the flow with the correct document selected.
Print sheets appear automatically when the preset you pick includes a 4×6 layout for counter submissions.

FAQ

I only know "600×600" — is that enough?: It is a start. Open the 600×600 / CEAC preset so background and head-height rules are applied, not just the pixel box.
Do you support custom sizes?: Where the catalog lists a preset, yes. For uncommon sizes, start from upload and pick the closest supported flow when offered.
Millimetres vs pixels — which should I trust?: Portals care about pixel width and height; print shops care about mm on paper. Presets translate the published tables into the upload file the website actually ingests.

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