Resize PDF

Change page size — A4, Letter, custom.

100% private Runs locally No sign-up

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Heavy libraries load on demand so the page shell stays fast.

About Resize PDF

Resize PDF (resize pdf) is a free pdf tools tool on Toolncy. Change page size — A4, Letter, custom. Unlike cloud converters, resize pdf runs locally with WebAssembly and browser APIs — your files never leave this device. No account, no upload queue, and no watermarks. Browse 34 tools in PDF Tools when you need a related step.

How to use Resize PDF

1Open Resize PDF on Toolncy — no install or sign-up.
2Drop your PDF into Resize PDF, or click to select files stored on this device.
3Set resize pdf options for your document, then run processing in the browser.
4Download the updated PDF from Resize PDF. Source pages were never uploaded.

Frequently asked questions

Is Resize PDF free to use?

Yes. Resize PDF on Toolncy is free with no tiers, trials, or sign-up. Use resize pdf as often as you need.

Does Resize PDF upload my files?

No. Resize PDF processes everything locally in your browser. Toolncy never receives the files you open for resize pdf.

Is Resize PDF safe for confidential work?

Yes for architecture: nothing is uploaded. Still use a trusted device — local malware can read browser memory like any app.

Does Resize PDF work on phones?

Yes on modern mobile browsers. Heavy pdf tools jobs may be slower on older phones because resize pdf runs on-device.

Will Resize PDF change PDF quality?

Resize PDF preserves page content unless you choose a compress/optimize mode. Vector text and embedded fonts stay intact when the operation is structural.

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About Resize PDF

How to use Resize PDF

1Open Resize PDF on Toolncy — no install or sign-up.

2Drop your PDF into Resize PDF, or click to select files stored on this device.

3Set resize pdf options for your document, then run processing in the browser.

4Download the updated PDF from Resize PDF. Source pages were never uploaded.

Frequently asked questions

Is Resize PDF free to use?

Yes. Resize PDF on Toolncy is free with no tiers, trials, or sign-up. Use resize pdf as often as you need.

Does Resize PDF upload my files?

No. Resize PDF processes everything locally in your browser. Toolncy never receives the files you open for resize pdf.

Is Resize PDF safe for confidential work?

Yes for architecture: nothing is uploaded. Still use a trusted device — local malware can read browser memory like any app.

Does Resize PDF work on phones?

Yes on modern mobile browsers. Heavy pdf tools jobs may be slower on older phones because resize pdf runs on-device.

Will Resize PDF change PDF quality?

Resize PDF preserves page content unless you choose a compress/optimize mode. Vector text and embedded fonts stay intact when the operation is structural.