At 300 DPI, A5 needs about 1748×2480 px (portrait). At 150 DPI, about 874×1240 px.
Why DPI changes the pixel count
Pixels = paper inches × DPI. Doubling DPI roughly doubles each side and quadruples total megapixels.
Portrait vs landscape
Swap width and height for landscape. Bleed and trim may require a few extra millimeters of image.
Pixels needed by DPI
| DPI | Pixels |
|---|---|
| 72 | 420 × 595 |
| 100 | 583 × 827 |
| 150 | 874 × 1240 |
| 200 | 1165 × 1654 |
| 240 | 1398 × 1984 |
| 300 | 1748 × 2480 |
| 600 | 3496 × 4961 |
FAQ
How many pixels for A5 at 300 DPI?
About 1748×2480 px in portrait orientation.