Format profile / C4
C4
229 × 324 mm · 9.02 × 12.76 in
Width
229 mm
Height
324 mm
Area
742 cm²
Finished-size ledger
Pixel canvas by resolution
rounded to whole pixelsBleed and safe-area canvases
confirm with your printer3 mm on every edge
235 × 330 mm
Artwork canvas with bleed. Keep essential content inside roughly 223 × 318 mm if the same distance is also used as a simple safety margin.
5 mm on every edge
239 × 334 mm
Artwork canvas with bleed. Keep essential content inside roughly 219 × 314 mm if the same distance is also used as a simple safety margin.
Closest standard formats
both edges comparedWhere C4 fits
1 common usesNext in the ISO C drawer
larger / smallerSet up C4 artwork without guessing
Start the document at the finished size—229 × 324 mm—and add the bleed your printer specifies outside that edge. A common 3 mm bleed produces a 235 × 330 mm artwork canvas. Keep type, logos, folds, and other critical details inside the trim line; a safety margin is not the same thing as bleed.
Pixel dimensions only become meaningful when paired with a resolution. At 300 DPI, this format is 2,706 × 3,828 pixels. Changing that number in an export dialog without resampling does not add image detail—it only changes the declared physical scale.
C4 belongs to ISO C Series. Its proportion is 1:1.414 (√2); the √2 family is designed so a half-sheet keeps the same shape, which makes layouts easier to scale between related formats.