Resize PDF

Change the page size of a PDF: Letter to A4, A4 to Letter, A3 down to A4, or any custom size in mm. Every page is scaled to fit the new size (or centered at its real size) and stays vector, so text remains sharp and selectable. Free, no watermark, and your file never leaves your browser.

Need a smaller file (MB/KB) rather than a new paper size? Use compress PDF or compress PDF to 1 MB.

PDF file

No PDF yet. You can also drop a file on this box.

New page size
Orientation
Content
Margin (mm)

How it works

The tool uses pdf-lib to create a new page at the size you pick and draw the original page onto it as an embedded vector form, scaled and centered. Nothing is turned into an image: text stays selectable and searchable, and fonts and vector graphics stay sharp at any zoom. Rotated pages keep their rotation. The preview is drawn with pdf.js.

Scale to fit makes each page as big as possible inside the new page minus the margin, keeping its proportions. Letter → A4 shrinks by about 3% and leaves a thin band at the top and bottom.
Shrink only scales down pages that don't fit and leaves smaller pages at their real size, centered. Use it to put receipts or A5 pages on A4 without blowing them up.
Keep size doesn't scale anything: each page is centered. Bigger pages get cut at the edges, smaller ones get white space around them.
Auto orientation keeps landscape pages landscape and portrait pages portrait. Pick Portrait or Landscape to force one orientation for all pages.

Making the PDFs yourself?

If the PDFs come from web pages or HTML templates, render them at the right size from the start. The Shotmint API prints any URL or HTML in Chromium as A4, Letter, Legal, A3, A5 or Tabloid, portrait or landscape, with the margins you set:

curl "https://shotmint.creasework.com/v1/pdf?url=https://example.com&format=Letter&landscape=true&margin=12mm" -H "X-API-Key: YOUR_KEY" -o page.pdf

Each render is 1 credit. €5 buys 2,000 with no subscription, and credits never expire. Try it without a key on URL to PDF and HTML to PDF.

Get 25 free renders a month API docs

FAQ

How do I convert a Letter PDF to A4? Pick A4, keep "Scale to fit" and save. The content shrinks by about 3% to fit A4's narrower width. A4 to Letter works the same way.

Does it reduce quality? No. Pages are placed as vector content, not rasterized, so nothing gets blurry. Scanned pages are images to begin with: they are scaled, not re-compressed. To make the file smaller, use compress PDF.

What gets lost? The page is redrawn on a new page, so clickable links and bookmarks are not carried over, and form fields stop being fillable. What they show is kept: filled-in values, ticked boxes, signatures, stamps and highlights are drawn onto the page first (the same step as flatten PDF), so the resized file looks like the original. To fill a form, do it before resizing with fill PDF form.

How is this different from crop? Crop PDF cuts part of the page away and the page becomes the size of what's left. Resizing keeps the whole page and changes the paper size around it.

Is my PDF uploaded? No. Everything runs in JavaScript on this page, so your documents stay on your device.

Why does it say password-protected? Encrypted PDFs can't be changed without the password. Save a copy without the password in your PDF viewer, then try again.

Resize PDF

How it works

Making the PDFs yourself?

FAQ

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