Resize PDF Pages

Resize PDF Pages moves the pages of a PDF onto a different paper size. The classic job is a US Letter document that has to be printed or submitted on A4, or the other way round, but it handles A3, A5, B5, Legal, Tabloid and any custom size in millimetres or inches.

You choose how the content fits. “Scale to fit” shrinks or enlarges each page to fit the new paper, keeps its shape and centres it, with an optional white margin. “Fill and crop” enlarges the content until it covers the whole sheet with no white bands. “Paper only” keeps the content at exactly the same size and just changes the sheet round it, which is what you want for adding white space or trimming a little off. Orientation can follow each page, so landscape pages stay landscape, or be forced to portrait or landscape.

Nothing is turned into a picture. Each page’s own drawing instructions are scaled in one step, so text stays sharp and selectable, links still work and the file barely grows. It all happens in your browser: the PDF is never uploaded.

1. Tap “Choose a PDF” and pick your file. A Letter file starts with A4 selected, and an A4 file with Letter.
2. Under “New paper size” pick A4, Letter, A3, A5, B5, Legal, Tabloid, or Custom and type a width and height.
3. Choose the orientation (“Match each page”, Portrait or Landscape) and how the content fits: “Scale to fit”, “Fill and crop” or “Paper only”.
4. Check the before and after pictures, where a dashed outline shows where each old page lands, then press “Resize PDF”.
5. Press “Download PDF” to save the new file.

• Seven standard paper sizes plus any custom size in millimetres or inches.
• Three fit modes: scale to fit, fill and crop, or change the paper only.
• Orientation per page, so mixed portrait and landscape documents come out right.
• Optional white margin, and a switch to stop small pages being blown up.
• Before and after thumbnails for every page, drawn to the same scale.
• Resize all pages or only the ones you type, such as 1-3, 8.
• Vector output: text stays selectable and links move with the content.
• Runs in your browser with no upload, sign-up or watermark.

• For printing on a different paper size, “Scale to fit” with a 5 mm margin keeps everything clear of the printer’s unprintable edge.
• “Fill and crop” suits slides and posters where white bands look wrong; check the edges in the preview first, because text near them can be cut.
• A page that is already the chosen size is left exactly as it was.
• To trim margins page by page rather than change the paper, use Crop PDF instead.