Documentation
Display devices
- X11:
- Windows:
Image devices
- JPEG: It uses the jpeglib library (if available). The compression ratio can be set with the quality option (default: 90).
- PNG: It uses the libpn library (if available). The interlaced and compression level can be set with the interlaced and compression_level options (default respectively to none and 3).
- PPM:
Memory devices
- nulldevice:
- bgr:
- raster: