Digital illustrations should be used. 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 kibibyte is a unit of data storage that equals 2 to the 20th power, or 1,048,576 bytes
in color and 500
KiB
A kibibyte is a unit of data storage that equals 2 to the 10th power, or 1,024 bytes
in gray-scale. A black and white drawing or graph may be scanned in 800
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.
bitmap, i.e. 1 bit TIFF. A 70 x 70 mm graph gives a file size of 600
KiB
A kibibyte is a unit of data storage that equals 2 to the 10th power, or 1,024 bytes
.
The preferred format is a TIFF-file. The resolution of WEB illustrations (gif) is usually too poor. A too small file/picture or a highly JPEG compressed file may look acceptable on screen but can never be restored and thus prints poorly.
If a photo needs to be highlighted with marks, letters and arrows it is better to do this in the production step. You may show this on a temporary illustration keeping the original clean for later use. If you would like to add highlights to your pictures, we recommend doing it in Adobe Photoshop, keeping the text and marks in a separate layer and saving it as an PSD file. It can also be done in the word processor and this will be used as a guide for production.
For digital graphs use a graphics program that can export EPS-files. Note that Harward Business Graphics and some other programmes cannot export EPS and Microsoft EXCEL produces graphs that are fragmented and hard to convert to printable diagrams although they are good for display purposes. As long as a graph is a well printed black-and-white line drawing it can always be scanned.
Please keep illustrations as separate files, e.g. EPS, TIFF or PSD. You should embed your illustrations in your PDF file, but should later be able to submit the original clean files on request. Use a CD for large files.