Say \72\97\112\112\121 \32\98\105\114\116\104\100\97\121 to your geek friend!

Usage

Use {} markup to highlight a part of text with a different color.

./make-pdf.rb -t 'print("{Happy birthday, %username%!} You are awesome!")'
              -b '0D4F8B'
              -c 'E3170D'
              -o 'postcard.pdf'

Will generate you the following postcard.