A summary of options are included below.
-png Produce images in the png format. This is the default.
-gif Produce images in gif format instead of png.
-pnm Produce images in pnm format instead of png.
-magnnnn,
Change the enlarging ratio that is applied while translating DVI into Postscript. More precisely,
dvips is run with -xnnnn option. Default value for this ration is 1414, this means that, by
default, imagen magnifies LaTeX output by a factor of 1.414.
-targ Pass option -targ to dvips. For instance, using -ta3 may help when images are truncated on the
right.
-pdf Have imagen call pdflatex instead of latex
-extracommand,
Insert command as an additional stage in imagen ppm to png/gif production chain. command is a Unix
filter that expects a ppm image in its standard input and outputs a ppm image on its standard
output. A sensible choice for command is one command from the netpbm package or several such
commands piped together.
-quantnumber
Add an extra color quantization step in imagen ppm image production chain, where number is the
maximal number of colors in the produced images. This option may be needed in response of a
failure in the image production chain. It can also help in limiting image files size.