Bookmark a Resize: Preset Any Size in a URL

The resizer reads its starting settings from the URL. That means any combination of width, height, file size, unit, DPI and output format can be captured as a plain link, which you can bookmark, pin to a phone home screen, put in a team wiki, or paste to a colleague.

This page is the full reference. Nothing here is a hidden API — it's the same mechanism the preset buttons on our platform pages use, documented so you can build your own.

Ready-made links

Click any of these to see it work, then bookmark the ones you'll reuse.

Parameter reference

Combine any of these with &. Order doesn't matter, and anything unrecognized is ignored rather than breaking the page.

Building your own

Start with the site root, add ?, then join your parameters with &:

That one opens the resizer set to 600×800 pixels, JPEG output, compressed to 240 KB or under — a typical passport photo specification. When the page loads you'll see a small Preset badge in the drop zone confirming what was carried over, so you can tell at a glance that the link did what you expected.

Working in print units

Physical sizes need a DPI to become pixels, because a centimeter isn't a number of pixels until you say how densely they're packed. Set both together:

Now the dimension fields accept millimeters, and 35 × 45 mm — the standard photo size for UK, Schengen and most ICAO-aligned passports — converts to 413 × 531 pixels at 300 DPI. Switch DPI to 600 and the same physical size becomes 827 × 1063 pixels.

300 DPI is the usual print standard. Use it unless a specification tells you otherwise. There's more on this on the resize in cm, mm and inches page.

Practical ways to use this

• Pin one to your phone's home screen. If you regularly prepare photos to one spec, a home-screen shortcut to a preset link is two taps from camera roll to correctly sized file.
• Put them in a team document. Instead of writing "resize to 1200×627 and export as JPEG under 200 KB" in your brand guidelines, link it. Nobody misreads a link.
• Keep a bookmark folder per project. One link per asset type — hero, thumbnail, social card — and the spec is encoded in the bookmark rather than in your memory.
• Send one instead of instructions. Helping someone with an application form is much easier when you can hand them a link that's already configured.
• Sync across devices. Bookmarks sync; a settings panel in a web tool doesn't. The URL is the portable format.

Why the URL and not saved settings

We could have stored your last-used values in the browser and restored them on return. We chose not to, for a few reasons that follow from how the rest of the site works.

Stored settings are invisible — you can't see what state you're in, share it, or version it. A URL is legible, portable and diffable. It survives clearing your browser data, works in private windows, transfers between devices, and can be checked at a glance before you click. It also keeps the site fully static, which is what lets every page be served from a CDN with no server-side state anywhere.

And it means we don't need to keep anything about you to make the tool convenient. The configuration lives in your bookmark, not in our storage — which is the same principle as your images living on your device rather than on our server.

Related

• Social media image sizes — dimensions worth turning into bookmarks.
• Resize in cm, mm and inches — how DPI converts physical size to pixels.
• All tools — crop, background removal, PDF and format conversion.
• Exam photo & signature sizes — specs worth presetting once.