PDF page sizes vary by region and document type. Understanding the differences helps you prepare documents correctly for printing, submission, and sharing.
A4 (210 × 297 mm): standard in Europe, Asia, Africa, South America. Used for business documents, forms, and academic papers. US Letter (215.9 × 279.4 mm): standard in the US and Canada. A3 (297 × 420 mm): double the size of A4, used for posters and plans. Legal (215.9 × 355.6 mm): US legal documents and contracts.
Printing an A4 PDF on US Letter paper (or vice versa) slightly crops the content or adds white borders. For professional submissions, always match the PDF page size to the printer paper size.
Go to pdfeditor.onl/crop-pdf. Select the target page size from the preset options (A4, Letter, Legal, A3). The tool rescales all pages to the selected size.
Tip: If the content is being cropped (not just margins) after page size conversion, check that the source PDF content fits within the new page dimensions.
A4 is 210 × 297 mm (8.27 × 11.69 in). US Letter is 216 × 279 mm (8.5 × 11 in). Letter is slightly wider and shorter than A4.
Yes. Enter custom width and height dimensions in the crop tool for non-standard page sizes.