Beating a jpeg of a line image back down to monchrome

Technique for converting 24-bit jpegs to B&W bitmaps:

1) (possibly optional) save as a 4 bit bitmap
2) Set gamma correction to 0.01 (in IfFanView, possibly in other programs, under color correction)

Note: The pinout images, possibly stolen from Norcomp can be seen at interfacebus.com:

http://www.interfacebus.com/Connector_D-Sub_Mechanical_Dimensions_Insert_Arrangements.html