I printing my thesis and I have written it in B5 format by
\usepackage[b5paper,left=3.5cm,right=2cm,bottom=2cm,top=3cm,twoside]{geometry}
\special{papersize=176mm,250mm}
I want to print it on A4 then cut to B5 using crop guidelines can any one help me please

zwpagelayoutand/or thecroppackages. They are able to put crop marks on your hardcopy. – Count Zero Jun 10 '13 at 18:40