Choose one PDF file from your device or drag and drop it into the upload area.
Select a standard preset like A4 or US Letter, or enter custom width and height.
Your resized PDF is ready.
Download the new document to your device.
Upload a PDF, pick a new page size, choose how the content should fit, and download the resized document. Everything runs locally in your browser.
Need to standardize a PDF to A4 for European partners, US Letter for a print shop, or a custom size for a brochure? IronFreeTools' Resize PDF tool lets you change the page size of every page in a PDF directly in your browser, with no account required.
Resizing is one of the most common PDF cleanup tasks. A consistent page size makes documents easier to print, archive, and combine, and helps PDFs render predictably across viewers, tablets, and printers.
PDFs arrive in all sorts of dimensions - scans, mobile exports, screenshots, and reports often mix sizes within the same packet. Resizing every page to a single standard makes a document feel deliberate and saves time during printing, signing, and review.
Upload a PDF, pick a preset such as A4 or US Letter, or enter a custom width and height. Choose how the existing content should adapt - fit, stretch, or center - and the tool rebuilds the PDF at the new dimensions with pdf-lib in your browser. For automated page-layout workflows in .NET, the same operations are available in IronPDF's Organize features.
Resize PDF changes the page dimensions of every page in your document. Pick a standard paper size such as A4 or US Letter, or set custom width and height values, and the tool rebuilds the PDF at the new size.
Yes. By default the tool scales each page to fit the new dimensions while preserving the aspect ratio. You can switch to Stretch to fill the page exactly or Center to keep the content at its original size.
Custom width and height can be entered in PDF points, inches, or millimeters. 72 points equals 1 inch and 1 inch equals 25.4 millimeters.
No. The tool keeps the original PDF content as vector and text data. Only the page dimensions and content scale change, so text stays sharp and images keep their original resolution.
No. Resizing runs locally in your browser using pdf-lib, so your PDF never leaves your device.
Encrypted or password-protected PDFs need to be unlocked before resizing.
Yes. Pick Portrait or Landscape to force the new orientation, or keep the original orientation of each page.
No. Resize PDF is free to use without sign-up, login, or installation.
Yes. You can resize PDFs for free with no watermarks or hidden restrictions.
Change PDF page size in one click Use common presets like A4, A3, Letter, or Legal Set custom width and height in points, inches, or millimeters Keep aspect ratio, stretch, or center the content Process files in your browser No account, no watermark, no upload.