What's the difference between Scale and Pad?

Scale changes the content size to fit the new page; Pad keeps the original content size and places it on the new (larger) page with empty margins.

Is content preserved?

Yes — text, images and form fields are preserved. Only the page size and (in Scale mode) content scale change.

No. Resizing runs entirely in your browser via pdf-lib.

This tool applies the new size to every page. For per-page resizing, extract the pages first.

Change PDF page size to A4, Letter, A3 or A5 — local.

100% private — no uploads PDF ToolsFree & unlimited Read tutorial

Follow these steps — everything happens instantly in your browser.

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Step 1. Drop a PDF onto the zone.
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Step 2. Choose a target size — A4, Letter, A3 or A5.
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Step 3. Pick a mode — Scale to fit (changes content size) or Pad (keeps content, adds margins).
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Step 4. Click “Resize & download”.

Everything you might want to know about pdf page resizer.

Set the visible crop box on every page with margin controls.

Rotate every page in a PDF by 90°, 180° or 270° — no upload.

Re-pack a PDF to shrink its file size — local, private, instant.

View and edit PDF title, author, subject & keywords — locally.