Resize PDF: Change Page Size to Letter

Resize PDF pages to a new paper size with this tool. Open your file, choose a target such as A4, US Letter, Legal, A3, A5 or your own size in millimeters, and decide how the old page should be placed: scaled to fit with a margin, scaled to fill and crop the edges, or stretched to the new shape. The original pages are embedded, so text stays sharp and selectable and the file is not turned into images. Everything happens in your browser, so your document never leaves your device.

Resize PDF Page Size

Resize PDF pages to A4, Letter, Legal, A3, A5 or a custom size. Fit, fill or stretch the content. Runs in your browser.

Everything runs in your browser. Nothing you type is sent to a server.

How to use the Resize PDF Page Size

  1. Choose a PDF file or drop it on the box.
  2. Pick the new page size, or Custom and enter millimeters.
  3. Choose Fit, Fill or Stretch, and the orientation and margin.
  4. Press Resize PDF and download the result.

Features

  • A4, A3, A5, B5, Letter, Legal, Tabloid or custom size
  • Fit, fill (crop) or stretch placement
  • Orientation: keep each page as it is, portrait or landscape
  • Optional margin in millimeters
  • Text stays selectable, no rasterizing
  • Shows the current page sizes of your PDF

Frequently asked questions

Will the text stay sharp?

Yes. The original pages are embedded as vector content and scaled, so text and graphics stay sharp and selectable. The pages are not turned into images.

What is the difference between Fit, Fill and Stretch?

Fit scales the whole page so it fits inside the new page with empty space at the sides if the shapes differ. Fill scales until the page is covered and crops what goes outside. Stretch changes width and height separately and distorts the page.

How do I convert a Letter PDF to A4?

Choose A4 and Fit with a margin of 0. US Letter is slightly wider and shorter than A4, so the content is scaled by about 97 percent and centered.

What does Auto orientation mean?

Each output page keeps the orientation of the page it came from, so a landscape page stays landscape on the new paper size.

Are rotated or password-protected PDFs supported?

Rotated pages are handled. A password-protected PDF cannot be opened here, so remove the password first.