Saturday, December 29, 2012

欧阳家谱辈分口诀

大元国复子,杨汉广明贤;钦忠思礼义,文正武自全;显跃承显德,家声永远源;诗书从经训,科甲定相传。

Wednesday, February 15, 2012

Converting PDF to Black and White

On Linux:
gs \
 -sOutputFile=output.PDF \
 -sDEVICE=pdfwrite \
 -sColorConversionStrategy=Gray \
 -dProcessColorModel=/DeviceGray \
 -dCompatibilityLevel=1.4 \
  input.PDF < /dev/null