Color illustrations should be used when available; the cost of color will be borne by Acta. A scanned picture or digital photo should usually be about 50 x 70 mm with a resolution of 300
dpi
Dots per inch (DPI) is a measure of printing resolution, in particular the number of individual dots of ink a printer or toner can produce within a linear one-inch (2.54 cm) space.
, which gives an uncompressed file size of 1.9
MiB
A Mebibyte is a unit of data storage that equals 2 to the 20th power, or 1,048,576 bytes
.
The preferred format is a TIFF-file or Photoshop. The resolution of a web illustrations (gif) is usually too poor. Color photos should be in
CMYK
CMYK is a subtractive color model used in color printing.
The color model is based on mixing pigments of Cyan, Magenta, Yellow, Black(Key) in order to make other colors
colors. Highlights, arrows and letters may be added but keep a clean version of the photo for the layout process. Acta prefers to add these as a separate layer.
At final submission you will be asked to submit the uncompressed clean versions for publication.