  We have written a reference manual to use JUDE (Jayant's UVIT data Explorer)
data pipeline software for processing and reducing the Ultraviolet Imaging
Telescope (UVIT) Level~1 data into event lists and images -- Level~2 data. The
JUDE pipeline is written in the GNU Data Language (GDL) and released as an
open-source which may be freely used and modified. GDL was chosen because it is
an interpreted language allowing interactive analysis of data; thus in the
pipeline, each step can be checked and run interactively. This manual is
intended as a guide to data reduction and calibration for the users of the UVIT
data.
