A4 paper is 210×297 mm, and printing it at 300 DPI takes 2480×3508 pixels. You don’t need to work any of that out, though: add photos, screenshots or PDFs to the editor above and they are laid out on A4 sheets, printing exactly as they look on screen.
A4 size at a glance
| Unit | A4 portrait |
|---|---|
| Millimetres | 210×297 |
| Centimetres | 21×29.7 |
| Inches | about 8.27×11.69 |
| Pixels at 72 DPI | 595×842 |
| Pixels at 96 DPI | 794×1123 |
| Pixels at 150 DPI | 1240×1754 |
| Pixels at 300 DPI | 2480×3508 |
For landscape A4, swap the width and height.
Laying out A4 with this tool
- Paste a screenshot with Ctrl+V or Cmd+V, drag files in, or click Add files and select several. JPG, PNG, WebP, GIF, BMP, HEIC and PDF can all be mixed together.
- Pictures are shown whole, never cropped, and made as large as fits. PDF pages keep their original size.
- Choose portrait or landscape, and margins of Auto, None, Narrow or Normal.
- Exported PDFs have pages of exactly A4 size; exported images are 2480×3508 pixels (300 DPI) per page.
When you print, choose Actual size or 100% in the print settings so the sizes come out right.
Related guides: A4 size in pixels and how US Letter differs from A4.