Resize PDF Pages

Our resizer changes PDF page dimensions to any standard size (A4, Letter, Legal, A3, A5) or a custom size in points. You control how the existing content is placed on the new page — scaled to fit, scaled to fill, or centred at its original size. Everything runs in your browser, no uploads.

Step-by-step guide

1. Upload the PDF. Drag in the file and wait for the page count to show.
2. Pick a target size. A4, Letter, Legal, A3, A5, or custom. Custom dimensions are entered in points (1 point = 1/72 inch).
3. Pick orientation. Portrait or landscape.
4. Choose a scale mode:
   • Fit — scales content to fit the new page, preserves aspect ratio, centred (default).
   • Fill — scales content to completely fill the page, may crop edges.
   • Centre — keeps content at its original size, centred on the new page.
5. Resize and download. Click the button — the resized PDF downloads.

When to resize

• Converting Letter-size US documents to A4 for European / international use.
• Going A4 → Letter for US printers and submission requirements.
• Enlarging to A3 for posters or large-format prints.
• Shrinking to A5 for pocket reference cards or booklets.
• Standardising a mixed-size document (some pages A4, some Letter) to a single size.
• Preparing a PDF for a specific printing device that needs exact dimensions.

Which scale mode to choose

• Fit for most cases. You get white space at the edges but nothing is cropped or stretched.
• Fill when you want edge-to-edge content and can afford to lose a little at the margins.
• Centre when the content is a small diagram and you specifically do not want it enlarged.

Tips

• Check margins before resizing. If the original has tight margins, "Fit" may create unexpected white borders. "Fill" may cut off headers or page numbers.
• Need to remove white space first? Use Crop PDF before resizing.
• File size may grow. Upscaling to larger formats can increase file size. Run the output through Compress PDF if needed.

Frequently asked questions