PSD

File extension: .psd Developed by: Adobe Systems Type of format: Raster Image format MIME: image/x-photoshop
Photoshop files have default file extension as .PSD, which stands for "Photoshop Document." A PSD file stores an image with support for most imaging options available in Photoshop. These include layers with masks, transparency, text, alpha channels and spot colors, clipping paths, and duotone settings.