Resize PDF Page Dimensions Online

Change the page size of your PDF to standard formats like A4, Letter, or Legal, or set your own custom dimensions. Our tool adjusts your document's scale quickly and securely.

Open PDF Resizer How it works
Pro tip: If resizing for a different country (e.g., US to Europe), switch from Letter to A4 for correct printing.
Processed
+2,100,000 files
Rating
4.9/5 (2100+)

Resize PDF — Tool

Upload your PDF, choose a new page size from the list or enter a custom size, and let our tool do the rest.

Your files are processed securely in your browser and are never uploaded to our servers.

How to Resize a PDF — Step by Step

Follow these simple steps to change the page size of your PDF document.

  1. Open the widget — click “Open PDF Resizer” or scroll to the tool on this page.
  2. Upload your PDF file — drag & drop your document or select it from your device.
  3. Choose a new page size — select a standard format like A4 or Letter from the dropdown menu, or enter your own custom width and height.
  4. Adjust content scaling (optional) — choose whether to stretch or scale the content to fit the new page dimensions.
  5. Resize and Download — click the "Resize" button, then download your PDF with its new page size.

Common use cases

  • Standardizing a document to A4 or Letter size for printing.
  • Preparing a file for a specific publisher or platform with strict dimension requirements.
  • Changing page dimensions for better on-screen viewing on tablets or e-readers.
  • Converting between US (Letter, Legal) and International (A4, A3) paper sizes.

Why Use Our Free PDF Resizer?

Our tool is designed for precision, flexibility, and complete privacy.

Privacy-First

All resizing happens in your browser. Your confidential files are never uploaded to any server.

Standard & Custom Sizes

Choose from a list of common paper sizes or define your own precise dimensions for any need.

Smart Content Scaling

Our tool intelligently scales your content to fit the new page size, preserving the aspect ratio to prevent distortion.

Instant & Free

Get your resized PDF in seconds with no software to install and no hidden costs.

Tips & Best Practices for Resizing

  • Always keep a backup of your original file before making changes to the page size.
  • After resizing, review the document to ensure the layout and formatting still look correct.
  • Resizing is not the same as compressing. If you need a smaller file size, use a PDF compression tool after resizing.
  • Be mindful of the aspect ratio. Changing from a portrait to a landscape-style custom size will significantly alter the layout.

Frequently Asked Questions

Ready to resize your PDF?

Open the tool, upload your file, and change your document's page size in seconds. It's fast, private, and completely free.

Open the PDF Resizer