Resize PDF
Resize PDF pages to A4, Letter or custom size online for free.
Click or drag a PDF file here
PDF files only
How to use Resize PDF
Upload your PDF file
Click the blue 'Choose File' button in the center of the page or drag and drop your PDF directly into the upload zone. The file uploads instantly to your browser.
Select your target page size
Choose from preset options (A4, Letter, A3, A5) using the radio buttons on the left panel, or click 'Custom Size' to enter exact width and height dimensions in inches or centimeters.
Adjust scaling if needed
Toggle the 'Scale content to fit' checkbox if you want text and images to automatically adjust. Leave unchecked to maintain original content size with blank space.
Download your resized PDF
Click the green 'Download PDF' button at the bottom. Your file downloads immediately with the new dimensions applied to all pages.
How to Resize PDF Online Free — Complete Guide 2026
Resizing a PDF is essential when you need to fit documents to specific page dimensions like A4 or Letter size. Whether you're preparing a document for printing, email, or document management systems, our free Resize PDF tool makes it simple in seconds—no software installation required.
Why Resize Your PDF?
You might need to resize a PDF for several reasons. Print shops require A4 or Letter dimensions. Scanners sometimes create odd-sized PDFs. Email systems have size restrictions. Document management platforms enforce specific page dimensions. Whatever your reason, resizing ensures compatibility across platforms and devices.
How to Resize PDF in 4 Easy Steps
Step 1: Open Resize PDF in your web browser. No login or software needed.
Step 2: Click 'Choose File' or drag your PDF into the upload zone. Processing begins immediately in your browser.
Step 3: Select your target size. Choose A4 (210×297mm), Letter (8.5×11 inches), or enter custom dimensions. Toggle 'Scale content to fit' to automatically resize text and images.
Step 4: Click 'Download PDF' to save your resized file instantly.
Common PDF Page Sizes Explained
A4 is the international standard (210×297mm). Letter is standard in North America (8.5×11 inches). A3 is double A4 size for larger documents. A5 is half A4 for smaller pages. Legal adds 1 inch to Letter height. Custom sizing lets you create any dimension you need.
Tips for Best Results
Enable 'Scale content to fit' if text appears cut off after resizing. Disable it if you want to preserve original font sizes with added margins. Test with a single-page PDF first if you're unsure. Most modern printers handle resized PDFs without issues.
Why Choose Our Free Resize PDF Tool?
No registration required—start resizing immediately. No file limits or quotas. All processing happens locally in your browser—your files never touch our servers. Works on all devices including mobile phones and tablets. Completely free with no ads interrupting your work. Batch process multiple files back-to-back in minutes.
Troubleshooting Common Issues
If content appears cut off, enable 'Scale content to fit' to automatically adjust. If margins look wrong, check your custom dimensions match your printer settings. If the file won't upload, ensure it's a valid PDF under 100MB. If download fails, try a different browser or clear your cache.
Alternative Methods to Resize PDFs
Adobe Acrobat allows professional resizing but costs money. Preview on Mac offers built-in resizing for free. LibreOffice handles PDFs but requires installation. Online tools like ours offer speed and convenience without software overhead.
Resize your PDF free today. Upload now and get your properly-formatted document in seconds. No credit card, no registration, no hassle.