Exercises 41 and 42

41.- Think you want to print out a photograph with a size of DIN A4: 210 × 297 mm maintaining a printing quality of 200 dpi. Which resolution would the image need?

Solution: To print at 200 DPI on A4 paper, your image should have a resolution of 1654 × 2338 pixels. This ensures the photograph will maintain the desired print quality at that size.

42.- Which resolution would the same picture need to have a 300 dpi picture?

Solution: The image needs to have a resolution of 2481 × 3507 pixels to print at A4 size with a quality of 300 DPI.