Convert PDF to A4 Size Online Free
Resize all pages of a PDF to standard A4 dimensions (210 × 297 mm). Free, private, runs entirely in your browser.
Click to select a PDF file, or drag and drop
Your file never leaves your browserHow to Convert a PDF to A4
- Upload the PDF whose page size you want to change to A4.
- Click Convert to A4 — every page is resized to the standard A4 dimensions (210 × 297 mm).
- Download the resulting file, which now has uniform A4-sized pages.
Example
A PDF with mixed page sizes — perhaps a scanned Letter-width page followed by a Legal-length page — becomes a consistent, print-ready A4 document where every page matches the same 595.28 × 841.89 point dimensions.
Common Use Cases
- Normalizing a scanned document that was mixed Letter and Legal size into a single A4 file.
- Preparing a PDF for submission to an agency or portal that requires A4 format.
- Ensuring consistent page dimensions before sending a PDF to a commercial printer that expects A4.
FAQ
- Will the content stretch or get cut off? The page canvas is resized to A4 dimensions. Content is not reflowed, so some elements may shift relative to the edges if the original size was significantly different.
- What if my PDF is already A4? The tool will still run, but the file will be essentially unchanged — it simply ensures all pages are exactly A4.
- Is my file uploaded anywhere? No — conversion happens entirely in your browser.