| # https://en.wikipedia.org/wiki/Netpbm_format |
| header1="P1" |
| header2="P2" |
| header3="P3" |
| header4="P4" |
| header5="P5" |
| header6="P6" |
| zero="0" |
| one="1" |
| comment="#" |
| max="255" |
| overflow="256" |
| |
| # PAM - https://en.wikipedia.org/wiki/Netpbm#PAM_graphics_format |
| header7="P7" |
| width="WIDTH" |
| height="HEIGHT" |
| depth="DEPTH" |
| maxval="MAXVAL" |
| enhdr="ENDHDR" |
| tupltype="TUPLTYPE" |
| tupltype1="RGB_ALPHA" |
| tupltype2="RGB" |
| typltype3="BLACKANDWHITE" |
| typltype4="BLACKANDWHITE_ALPHA" |
| typltype5="GRAYSCALE" |
| typltype6="GRAYSCALE_ALPHA" |
| maxval_num="65535" |
| maxval_overlfow="65536" |
