In the spreadsheet app itself, you have the options to print only a specific sheet. You also can turn off the grid lines when creating the pdf from within the app. Is ther
@rcknr, worked for me, more options below. (From: http://productforums.google.com/forum/#!msg/apps-script/wQvCF6yY1Qk/R0uyVmf-Xx0J )
URL like this: https://spreadsheets.google.com/feeds/download/spreadsheets/Export?key=tOHm3f8tdIxf7tSZzWvBGiA&gid=0&size=legal&fitw=true&gridlines=false&portrait=false&exportFormat=pdf
other settings
fmcmd=12
size=legal/A4
fzr=true/false
portrait=false/true
fitw=true/false
gid=0/1/2  
gridlines=false/true
printtitle=false/true
sheetnames=false/true
pagenum=UNDEFINED
attachment=false/true  
true/false where sometimes required, I could not use 0/1 instead.