|visits||member for||3 years, 1 month|
|seen||Dec 17 '11 at 21:58|
Convert a PDF to greyscale on the command line in FLOSS?
Based on Tom Wijsman’s answer, enriched with options to skip user interaction (-dNOPAUSE) and to get back to the shell after conversion (-dBATCH). Everything put together in a handy shell script.