How to Change the Paper Size of a PDF (Free)
Resize PDF pages to any standard paper format — A4, Letter, Legal, A3, A5. Free, browser-based.
FixMyPDF's resize tool supports all common paper sizes. Change PDF pages to A4, Letter, A3, A5, Legal, or custom dimensions.
Available Paper Sizes
A3 (420 × 297 mm): large format printing, posters, plans. A4 (297 × 210 mm): standard European and international. A5 (210 × 148 mm): booklets, small flyers. US Letter (216 × 279 mm): standard North American. US Legal (216 × 356 mm): legal and contract documents.
Steps
Go to fixmypdf.in/tools/resize. Upload. Select the target size from the dropdown. Configure scaling preference. Resize. Download.
Mixed-Size PDFs
A PDF where different pages have different sizes (common when merging documents from different sources) can be standardised to a single size using the resize tool — every page will be converted to the target format.
Try Resize PDF Now — Free
Browser-based, private, and instant. No account or software required.
Open Resize PDF