it's a lot easier to print one pdf than fifty.
http://pages.cs.wisc.edu/~ghost/doc/intro.htm
http://pages.cs.wisc.edu/~ghost/doc/intro.htm
"C:\Program Files\gs\gs8.54\bin\gswin32" -q -sPAPERSIZE=letter -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=out.pdf in0.pdf in1.pdf in2.pdf
the resultant pdf i made is 1100 pages long. i don't know if i'll be printing that...