Older versions of; Paint Shop Pro, but also; IrfanView; Gimp, and other viewers and graphics programs, have problems with PSD files with CMYK encoding. You can only open the designed with Photoshop images when they are present as RGB. Otherwise, they report either malformed or show instead of the image, only a black surface on.
optimally calibrate your PC monitor;; Tips Xnview; To open such a file, the free tool is. It also displays CMYK images and can combine them to also convert to other formats. The command for “File -> Export”. He transforms the PSD file into an image in JPEG, BMP, GIF, TIFF, PCX, PNG or TGA. In each of these export filter several compression options are available.
25 years Photoshop