The following graphics devices are currently available:
* windows The graphics device for Windows (on screen, to printer and to Windows metafile).
* postscript Writes PostScript graphics commands to a file
* pdf Write PDF graphics commands to a file
* pictex Writes LaTeX/PicTeX graphics commands to a file
* png PNG bitmap device
* jpeg JPEG bitmap device
* bmp BMP bitmap device
* tiff TIFF bitmap device
* xfig Device for XFIG graphics file format
* bitmap bitmap pseudo-device via GhostScript (if available).