In many different places in the user interface of iText DITO you can define seizes and measurements. These can be expressed in a variety of different units, either absolute or relative.

Supported Absolute Units

Unit NameAbbreviation
pixelpx
pointpt
centimetercm
millimetermm
inchin
picapc

Supported Relative Units

Unit NameAbbreviation
percentage%
emem
root emrem

Please note that percentages cannot be used as a unit for all fields that expect a measurement value. Page size for instance cannot be expressed in percentage.