A PSD file extension is used by Photoshop to save its file. Photoshop uses a pixel based technique to create and save its files in order to reuse them. A PSD file format is comparatively heavy than any other image formatting due to its extensive pixel based quality. You cannot use a PSD image file with any other application like a usual image. However you can easily convert it into any Image Format of your choice. This tutorial will show a nice and easy way to convert from PSD to a JPG format.