To get an optimal printing result, your images should not be less than a certain image size or resolution. What image size for which album size is right, you can find here:
Necessary minimum image sizes (per album size, width x height)
20 x 20 | Short side of the image min. 20 cm at 300 dpi |
20 x 30 | Short side of the image min. 20 cm at 300 dpi |
30 x 20 | Short side of the image min. 30 cm at 300 dpi |
25 x 25 | Short side of the image min. 25 cm at 300 dpi |
25 x 30 | Short side of the image min. 25 cm at 300 dpi |
30 x 25 | Short side of the image min. 30 cm at 300 dpi |
30 x 30 | Short side of the image min. 30 cm at 300 dpi |
25 x 35 | Short side of the image min. 25 cm at 300 dpi |
35 x 25 | Short side of the image min. 30 cm at 300 dpi |
35 x 35 | Short side of the image min. 30 cm at 300 dpi |
30 x 40 | Short side of the image min. 30 cm at 300 dpi |
40 x 30 | Short side of the image min. 30 cm at 300 dpi |
If your images deviate from this listing, we ask for a brief reference at data transfer.