The graphics state is determined by the current values of a number of parameters that the reader maintains:

Device-Independent Graphics State Parameters
Parameter	Type	Description
CTM	array	The current transformation matrix, which maps the user space coordinates to the device space coordinates
clipping path	internal	The boundary of output.
color space	name or array	The current color space in which color values are interpreted
color	various	the current color used during painting operation
text state	various	used in painting text
line width	number	the thickness used to stroke paths
line cap	integer	code for the shape of stroke ends
line join	integer	code for the shape of joints between connected segments of a stroked path
miter limit	number	The maximum length of mitered line joins for stroked paths
dash pattern	array and number	A description of the dash pattern to be used when paths are stroked
stroke adjustment	boolean	ofutput