Choose the size for the job
This relatively broad rectangle can work for a composition that needs more height than a 2:3 landscape frame allows. When starting from a 3:2 photo, assess whether the subject can survive the side crop before considering resolution.
| Measurement | Value |
|---|---|
| Inches | 20 × 24 |
| Centimetres | 50.8 × 60.96 |
| Millimetres | 508 × 609.6 |
| Short-edge-to-long-edge ratio | 5:6 |
Pixel examples
These examples multiply each edge in inches by the stated PPI. They describe pixel counts for the chosen size, not a universal pass or fail rule for appearance. Use the retained pixels after cropping when checking an existing photo.
| Example PPI | Pixels |
|---|---|
| 150 | 3,000 × 3,600 |
| 240 | 4,800 × 5,760 |
| 300 | 6,000 × 7,200 |
A worked example
A 6000 × 4000 image filling a landscape 24 × 20 frame retains 4800 × 4000 pixels at 200 PPI. The crop removes 20% of the original area. Keeping the same image whole places it at 24 × 16 inches, leaving two-inch borders above and below in the 24 × 20 frame.
Before you print
A 300 PPI example at this size requires 6000 × 7200 portrait pixels. That is a planning calculation, not a requirement that every print must meet. The source’s real detail and the intended viewing distance still matter. The launch directory keeps this 5:6 calculation on the size page rather than inventing a duplicate ratio guide.