Change the page size of your PDF documents online for free. Convert to A4, A3, Letter, Legal, or custom dimensions.
Our PDF resize tool lets you standardize all pages to the same dimensions. This is useful when combining documents from different sources that have inconsistent page sizes.
Content is scaled to fit the new page size while maintaining aspect ratio. Perfect for preparing documents for printing or adapting files to specific requirements.
Select or drag your PDF into the upload area.
Select a standard size (A4, Letter, etc.) or enter custom dimensions.
Download your PDF with all pages resized to the new dimensions.
Your files never leave your device. Everything runs directly in your browser using JavaScript — no server, no cloud, no data collection. Your documents stay private.
A4, A3, A5, Letter, Legal, Tabloid, and custom dimensions are all supported.
Content is scaled proportionally to fit the new page size without cropping.
Yes, you can apply resizing to all pages or selected pages only.
No. Text in PDFs is vector-based and scales perfectly at any size.
Yes — PDFInOne is a completely free alternative to iLovePDF, Smallpdf, PDF24, and Adobe Acrobat online. Unlike those services, PDFInOne processes everything locally in your browser: no file uploads, no account required, no file size limits, and no watermarks.