How to Resize a PDF to A4 (Fix Odd Page Sizes for Printing)
PDFs with mixed or unusual page sizes often print with odd scaling or clipped edges. Resizing every page to a standard A4 (or US Letter) size makes the document print cleanly and consistently. Here is how to do it in your browser, without uploading the file.
The tool
Resize PDF to A4
Step by step
- Open the resizerGo to Resize PDF to A4 — it runs locally in your browser, no install or account needed.
- Add your PDFDrop in the PDF you want to normalize, or click to browse.
- Pick size, orientation, and marginChoose A4 or US Letter, keep “Auto” orientation (or force portrait/landscape), and select a margin.
- Resize and downloadClick Resize, then download the normalized PDF. Your file never leaves your device.
It won’t crop or stretch your content
Each page is scaled to fit the target size while keeping its exact proportions, then centered — so nothing is cut off and nothing looks squashed. A small or normal margin adds a printer-safe border; choose “None” to fill the page edge to edge.
Why not just print “fit to page”?
Print dialogs handle scaling differently on every device and printer, and they don’t change the file itself. Resizing the PDF once bakes a consistent A4 layout into the document, so it looks and prints the same everywhere you send it.
Frequently asked questions
Does it crop or distort my pages?
No — each page keeps its proportions, is scaled to fit, and is centered on the A4 (or US Letter) page.
Is my PDF uploaded?
No — the resizing happens entirely in your browser; your file never leaves your device.
Can I keep landscape pages landscape?
Yes — the default “Auto” setting preserves each page’s orientation, or you can force portrait or landscape.