Change the page size of your PDF documents with total precision using our free online PDF resizer. Whether you need to convert A4 to Letter for US printing, scale pages to A3 for large-format output, or set exact custom dimensions in millimeters, centimeters, or inches — our tool gives you full control. Resize individual pages or apply the same size to the entire document at once. No software installation needed.
An online PDF resizer lets you change the page size of a PDF directly in your browser — no Adobe Acrobat, no software installation, no account needed. Upload your PDF and instantly resize pages to standard formats like A4, A3, Letter, or Legal, or set precise custom dimensions in millimeters, centimeters, or inches.
At PDFFixNow, you can resize PDF pages online for free. The new page size is saved permanently into the file, so it prints and displays correctly on every device — phone, tablet, laptop, or desktop. Works on Windows, Mac, iPhone, and Android.
Why PDF pages need resizing: PDF documents often arrive in the wrong page size for their intended purpose. A report formatted for A4 may need to be printed on US Letter paper. A presentation designed for screen viewing may need to be scaled to A3 for a poster. Documents received from international colleagues may use different regional paper standards. Our resizer solves all of these situations without needing to go back to the original source file.
Resizing vs. Scaling: It is important to understand the difference between changing the page size and scaling the content. Our tool can do both. You can expand the page boundary while keeping content at its original size (adding white space around it), or you can proportionally scale the content to fit the new dimensions. This gives you full control over how your document looks after resizing.
Upload your PDF
Drag and drop your PDF file into the upload box or click to browse your device. You can upload a single file or multiple PDFs for batch resizing.
Choose your page size
Select a standard paper size preset (A4, A3, Letter, Legal, etc.) from the dropdown, or enter exact custom width and height values in your preferred unit (mm, cm, or inches).
Download your resized PDF
Click "Resize PDF" and your updated document downloads instantly. The new page dimensions are permanently saved into the file — ready for printing or sharing.
Changing the page size of a PDF is a common need across many workflows. Here are the most frequent situations where this tool saves time.
Custom Dimensions
Our resize PDF tool gives you total control over page dimensions. You can precisely resize PDF pages by entering custom width and height values in millimeters, centimeters, inches, or points to meet specific submission requirements.
Standard Formats
Need to change a document from A4 to Letter? This resize PDF tool includes presets for all standard paper sizes including A3, A4, A5, Letter, Legal, and Tabloid, making it easy to resize PDF files for printing.
Batch Processing
Save time with our batch resize PDF capability. You can upload and resize PDF documents in bulk, applying the same new dimensions to all files or configuring each one individually for maximum efficiency.
Visual Preview
Ensure your document looks perfect before you finalize changes. Our resize PDF interface generates a visual preview, so you can see exactly how your content fits on the new page size before you resize PDF files.
Secure & Private
Your privacy is paramount when you resize PDF documents on our platform. All files uploaded to our resize PDF tool are processed via secure 256-bit SSL connections and permanently deleted after 2 hours.
Cross Platform
Resize PDF files from any device or operating system. Whether you use Windows, Mac, Linux, iOS, or Android, our cloud-based resize PDF tool works seamlessly directly in your web browser.
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