How to Resize a PDF (Scale Pages Up or Down)

Resizing a PDF changes the physical dimensions of its pages. It's different from compressing (which changes file size) and cropping (which changes the visible area).

When resizing makes sense

• A page is larger than needed (A3 content used as A4) — scale down.
• A page is too small to read comfortably — scale up.
• You need exact dimensions for a submission system.

Resize in two modes

The Resize PDF tool offers:

Percentage scaling

Scale every page by the same factor — 50% halves the page, 150% grows it. Content scales with the page.

Exact dimensions

Set width and height in PDF points (1 pt = 1/72 inch; A4 = 595 × 842 pt, Letter = 612 × 792 pt).

Quality implications

• Scaling down keeps quality — content is compressed into less space.
• Scaling up stretches content. Vector text re-renders cleanly, but raster images and scans get blurry.

Common mistakes to avoid

1. Scaling up scans — blurry pages. Re-scan instead.
2. Non-uniform scaling — don't set width and height independently for images (distortion). Use percentage mode or Change Page Size, which scales to fit.
3. Scaling for print without checking — always print-preview after.

Resize vs Change Page Size

Frequently asked questions

Does resizing reduce file size?

Not automatically — the same content is stored. Compress separately with Compress PDF.

Can I resize one page?

This tool resizes all pages uniformly. Split the page out first for per-page work.

What's a PDF point?

One point = 1/72 inch. A4 is 595 × 842 points.

Resize your document now with Resize PDF.