Resize Pages

Resizing changes the physical page dimensions of a PDF to a standard format such as A4, A3, A5, Letter or Legal. This matters when a document was created at the wrong size and now needs to print correctly or match the rest of a set.

ColaPDF rescales your pages to the format you choose, with several scaling modes so you control how the existing content fits the new page. The conversion runs on your device, keeping the document private.

How it works

1. Upload your PDF
2. Choose the target page size (A4, Letter, Legal, etc.)
3. Choose orientation and scaling mode
4. Click Resize and download your reformatted PDF

Tips

• A4 is the international standard; Letter is common in the US — pick the one your printer expects.
• Use the scaling mode that preserves aspect ratio to avoid stretching content.
• Resizing before printing prevents unexpected margins and cropped edges.

Frequently asked questions

What scaling modes are available?

Fit (keeps ratio with white margins), Stretch (fills page), and Crop (centres content).

Will content be cut off?

Only if you choose Crop mode. Fit mode is the safest option.

Are files uploaded?

No. Resizing runs in your browser.

Can I resize to a custom size?

Currently only standard sizes are supported. Custom sizes are coming soon.