Resize PDF (Change Page Size)

Change PDF page size to A4, Letter, A3, A5 or Legal, scaling content proportionally and keeping text selectable.

How do I change a PDF from Letter to A4?

Choose the PDF, select A4 (or another size) and press Resize PDF. Each page is placed on a new sheet of that size and scaled proportionally to fit, centred, without stretching — text and vector graphics stay sharp and selectable.

Page sizes

Size	Millimetres	Inches
A4	210 × 297	8.27 × 11.69
US Letter	215.9 × 279.4	8.5 × 11
US Legal	215.9 × 355.6	8.5 × 14
A3	297 × 420	11.69 × 16.54
A5	148 × 210	5.83 × 8.27

Landscape pages get landscape sheets automatically unless you choose "Always portrait".

Frequently asked questions

Does resizing reduce quality?

No. Pages are embedded as vector content and scaled, not converted to images.

Why are there white bars?

A4 and Letter have different proportions, so a small margin appears on one side to avoid distortion.

Is it private?

Yes, the PDF is processed in your browser.