PSD is a fairly common raster image format; the most popular graphic editor Adobe Photoshop is used to create files of this format. The name of the format is an abbreviation for Photoshop Document, and the developer is Adobe Systems. In other words, it is a graphic file format specially created for this program. Its feature is that it stores text information, layers, layer masks. PSD saves all layers created when working in Adobe Photoshop, and you can continue to work with them at any time. Also uses transparency and translucency options.
JPEG is the most common and popular bitmap format. The form got its name from the name of the organization-developer Joint Photographic Experts Group. Files of this format are used today in all digital cameras and cameras. They have a good compression ratio and support 24-bit color depth. Since such compression significantly reduces image size with virtually no loss of quality, JPEG format is widespread on the Internet. However, the stronger the compression, the worse the quality. In addition, the JPEG format does not support the transparency option.