Resize PDF pages to a standard size — offline & private

Normalize a mixed-format document to one consistent page size — or scale to custom dimensions — while keeping content centered and proportioned. Resizing runs locally in your browser with pdf-lib, so your file never leaves your device.

How to Resize PDF pages to a standard size — offline & private

1. Step 1. Upload your PDF (it stays on your device).
2. Step 2. Choose a target size: A4, Letter, Legal, A3, A5, or Custom.
3. Step 3. For custom sizes, enter width and height in points.
4. Step 4. Execute — resizing happens locally in your browser — then download the resized PDF.

Frequently asked questions

Can I convert a Letter PDF to A4?

Yes. Select A4 as the target and every page is scaled and centered onto the A4 canvas.

Will resizing distort my content?

No — content is scaled proportionally and centered on the new page size.

Is my file uploaded to a server when resizing?

No. Resizing is 100% offline — the PDF is processed in your browser memory and never sent anywhere. Encrypted files are skipped with a warning.

Can I use custom page dimensions?

Yes, choose Custom and specify width and height in points.