Once you upload your file, then based on its resolution our website will let you know the maximum size that you can print it at whilst still achieving a good quality print resolution. 

The most important factor in getting a good quality image at the right size is the “dots per inch” (DPI) that you would have at any given size / resolution. The best images will be produced by DPI a 200 or above, whilst the minimum acceptable is 100 DPI. 

We’ve put a quick table below that show you what sizes will 

Print Size (inch)

Print Size (mm)

Min. Resolution (100 DPI)

Optimal Resolution (200 DPI)

4x6"

101.6x152.4mm

400x600

800x1200

10x8"

254x203.2mm

1000x800

2000x1600

10x12"

254x304.8 mm

1000x1200

2000x2400

12x16"

304.8x406.4 mm

1200x1600

2400x3200

20x16"

508x406.4 mm

2000x1600

4000x3200

24x16"

609.6x406.4 mm

2400x1600

4800x3200

24x30"

609.6x762 mm

2400x3000

4800x6000