Applescript or automator to print only 3 first pages of a pdf
This will prompt you to select the PDF file, then print the first 3 pages of it(change the sourceFile variable if you want to choose the PDF in another way):

set sourceFile to (choose file with prompt "Choose a PDF file:" of type {"PDF"})
do shell script "lpr " &amp; quoted form of POSIX path of sourceFile &amp; " -o page-ranges=1-3"


If you want to have a drag-and-drop application:

on open droppedItem set sourceFile to POSIX path of droppedItem
do shell script "lpr " &amp; quoted form of POSIX path of sourceFile &amp; " -o page-ranges=1-3" end open