PDFMaxResize PDF — Change Page Size and Scale
Need your PDF in a different page size? This free Resize PDF tool changes the page dimensions or scale of any document in seconds. Pick a standard format like A4, Letter, Legal or A3, or enter custom width and height. Your content is scaled proportionally so text stays sharp and nothing gets stretched or squashed. It runs right in your browser on any phone, tablet or computer, with no signup and no software to install. Resizing is perfect for fixing pages before printing, matching paper formats, or unifying mixed-size pages into one consistent document.
Resize PDF →100% freeNo signupWorks in your browser
Why PDFMax
- Choose a preset size — A4, Letter, Legal, A3 and more — or set custom width and height in mm, inches or points
- Pages are scaled proportionally, so text and vector graphics stay crisp and nothing looks stretched
- Completely free with no watermarks, no page limits, no signup and nothing to install
- Files are processed in your browser and never stored, keeping your documents private
- Works the same on mobile and desktop — resize a PDF straight from your phone
How to resize PDF
- Upload your PDFDrag and drop your file into the tool or tap to choose it from your device. No account needed.
- Pick a new page sizeSelect a standard format such as A4, Letter or Legal, or enter custom width and height for the result.
- Set how pages scaleKeep the content proportional so it fits the new size without distortion, then apply the change.
- Download your resized PDFSave the finished file to your phone or computer in one tap. Repeat with as many PDFs as you need.
Frequently asked questions
Is the Resize PDF tool free?
Yes, it is completely free. There are no watermarks, no page limits and no signup — resize as many PDFs as you like.
Is it safe and private?
Your file is processed in your browser and is not stored on a server, so your document stays private to you.
Will resizing reduce the quality of my PDF?
Text and vector graphics stay sharp because they are scaled mathematically. Photos may look softer if you enlarge a page a lot, so for best results start from a high-quality source.
What page sizes can I choose?
You can pick standard formats like A4, Letter, Legal and A3, or enter your own custom width and height.
Does it work on my phone?
Yes. The tool runs in any modern mobile or desktop browser, so you can resize a PDF on a phone, tablet or computer.
Is resizing the same as compressing a PDF?
No. Resizing changes the page dimensions or scale, while compressing reduces the file size in megabytes. Use compress if you mainly want a smaller file.