Calculate maximum print dimensions from pixel size and DPI, then use practical examples for 12x12, US Letter, and smaller journal pages.
SCRAPBUJOFind the image pixel dimensions. Choose 300 DPI for high-quality paper printing. Calculate width and height separately. Avoid enlarging beyond the available pixels when fine detail matters.
A 3600×3600 file equals 12×12 inches at 300 DPI. A 2550×3300 file equals 8.5×11 inches. A 1800×1800 file equals 6×6 inches. The same file can print larger at a lower DPI, but edges and small text may become softer.
Changing the DPI number without adding pixels does not create detail. Pixel dimensions determine what information exists in the image. Print software may resample, but resampling estimates new pixels rather than recovering original artwork.
Print a small crop at 100 percent scale and inspect fine lines, text, and watercolor edges. The test reveals printer sharpening, paper color, and ink behavior before you spend time and materials on a full page.
Pixel width Pixel height Target DPI Required final inches
Open the full ScrapBujo article for the detailed steps, printable collection suggestions, and related practical guides.