[header] How to hang cabinet doors [title] Install the hinges. [step] If you took the hinges off of the door at the start, then you should be able to find the original screw holes. Line the hinges up with those holes and use a hand drive screwdriver to attach them. 
New doors may or may not have pre-drilled holes for the hinges. [substeps] When working with new doors that have never had hinges attached, carefully use a power drill to drill holes for the screws.