how to crop pdf file? pls help

[OBAID6737]

assalam o alaikum
mere pass 1 pdf file hai jisme password laga hua hai aur password bhi mujhe pata hai. lekin problem yeh hai ki mujhe wo file crop karni hai ya convert karna hai jpg me . adobe reader me bahut talash kiya magar crop ka koi option nahi mila aur photoshop me open nhi ho raha hai. agar aapme se kisi ko pata ho to please meri help kijiye.....

[Ihsasdaudzai]

PDF file passwrd dy kar open karo per edit karo per save as karo jaha file name likna ho waha name liko is ky nechy bar may jpg select karo per hojaeyga