Crop & Re-size 300 Images

Hi, this is a rather easy job but will take some time.... I need someone to crop and re-size about 300-400 images for a web project... My client is a plastic surgeon and we have around 300 "before and after" pictures that we would like re-sized to 400 x 400px for his new website. the images are already fairly consistent, however there are some in landscape and some in portrait layouts and we would like to resize all of them into tidy square shapes for a clean and functional online gallery on a new website being built. You would be expected to crop them so each before and after picture is well centered and is similar to the other so people viewing them can make an easy comparison... SPECS: Crop & Re-Size to 400px X 400px 300 or so images Maintaining aspect ratios The winning bidder will be given a link to an online drop box to get the files and begin work. look forward to your responses. Regards, Che