A7 size in pixels
A7 is 74 × 105 mm. In pixels that is 874 × 1240 at 300 DPI for print and 210 × 298 at 72 DPI.
A7 is an eighth of A4, used for labels, tickets and pocket cards. It measures 74 × 105 mm, or 2.91 × 4.13 in, with sides in the ratio 1 to √2 so that it halves into the next size down.
| Resolution | Pixels (portrait) | With 3 mm bleed | Megapixels | Uncompressed |
|---|---|---|---|---|
| 72 DPI | 210 × 298 | 227 × 315 | 0.06 | 183 KB |
| 96 DPI | 280 × 397 | 302 × 420 | 0.11 | 326 KB |
| 100 DPI | 291 × 413 | 315 × 437 | 0.12 | 352 KB |
| 150 DPI | 437 × 620 | 472 × 656 | 0.27 | 794 KB |
| 200 DPI | 583 × 827 | 630 × 874 | 0.48 | 1.4 MB |
| 240 DPI | 699 × 992 | 756 × 1049 | 0.69 | 2 MB |
| 300 DPI | 874 × 1240 | 945 × 1311 | 1.1 | 3.1 MB |
| 400 DPI | 1165 × 1654 | 1260 × 1748 | 1.9 | 5.5 MB |
| 600 DPI | 1748 × 2480 | 1890 × 2622 | 4.3 | 12 MB |
| 1200 DPI | 3496 × 4961 | 3780 × 5244 | 17 | 50 MB |
Landscape is the same numbers the other way round. Pixels are rounded to the nearest whole pixel. The last column is 8-bit RGB before compression.
Which resolution to use for A7
For print that will be held and read, use 300 DPI: 874 × 1240 pixels, 1.1 megapixels. Use 600 DPI only for line art or very small text. For a screen, the DPI number does nothing; only the pixel size matters.
Will a photo fill it?
- A 12 megapixel phone photo (4000 × 3000 pixels), cropped to fill A7, prints at 968 DPI: sharp at any distance.
- A 24 megapixel camera photo (6000 × 4000 pixels), cropped to fill A7, prints at 1,373 DPI: sharp at any distance.
- A 48 megapixel photo (8000 × 6000 pixels), cropped to fill A7, prints at 1,935 DPI: sharp at any distance.