XnConvert, a powerful, free, cross-platform batch photo converter, allows you to automate the editing of your large photo collections. You can rotate, convert, and compress images, photos, and pictures, and apply more than 80 actions, including resize and crop, color adjustments, filters, ...). All popular picture and graphics formats (JPEGs, TIFFs, PNGs, GIFs, WEBPs, PSDs, JPEG2000s, OpenEXRs, camera RAWs, PDFs, DNGs, CR2) are supported.