Resize PDF Pages Online Free
Resize every page in your PDF to A4, Letter, or Legal. Fit or fill pages with private browser-based processing.
Step 1: Select Files
Drag & drop files here, or click to select
Support for PDF files up to 50MB
How to resize PDF pages in 4 steps
FreePDFLab runs entirely in your browser, so the steps below happen on your device without anything being uploaded to a server.
Upload your PDF
Drop the file onto the upload area or click to browse. Resizing happens locally — the PDF is never uploaded.
Pick a target page size
Choose A4, Letter, or Legal as the target size. FreePDFLab scales the page content to fit, preserving the aspect ratio.
Apply the resize
Click "Process". The tool walks through every page, applies the new size, and rebuilds the PDF.
Preview and download
Preview the resized pages inline to confirm the layout looks right, then download the standardised PDF.
Why resize PDF pages with FreePDFLab
Match printer paper
Most office printers expect Letter (US) or A4 (international). A PDF created at a custom size often fails to print correctly — resize once and forget about it.
Standardise mixed-size PDFs
A merged report can end up with a mix of Letter, A4, and Legal pages from different sources. Resize forces every page to the same target.
International compatibility
Sending a Letter-sized PDF to a colleague in Europe? Convert to A4 first so they can print without scaling oddities.
Browser-private
Resizing runs locally. No upload, no account, no watermark on the output. The PDF never leaves your device.
Frequently asked questions
Does resizing change the quality of the page content?
The tool scales the page boundary and adjusts the content placement. Vector text and embedded fonts scale cleanly; raster images scale visually too but their resolution does not change.
What sizes are supported?
A4 (210 × 297 mm), US Letter (8.5 × 11 in), and US Legal (8.5 × 14 in). Custom sizes are on the roadmap.
Will resizing crop my content?
No. The content is scaled to fit the new page size, preserving the aspect ratio. There may be a small margin if the source and target aspect ratios differ.
Can I resize different pages to different sizes?
Not yet. The current tool applies the same target size to every page in one pass.
Is my PDF uploaded when I resize?
No. Resize runs entirely in your browser using pdf-lib. The PDF stays on your device.
Is the tool free for commercial use?
Yes. There is no usage restriction, no account, and no watermark added to the output. The resized PDF is yours to use however you want.