Image file formats / Photo file formats

PSD (Photoshop Document)
This file format is the native format of Adobe Photoshop documents. This format can store layers and alpha channel information contained in an image, so that a time can be opened and edited again. This format is also capable of storing multiple images in Photoshop color modes are provided. You can save this file format if you want to edit it again.

BMP (Bitmap Image)
This file format is a flexible graphical format for the Windows platform so it can be read by any graphics program. This format is able to store information with a rate of 1 bit to 24 bits till. The weakness of this file format is not able to store an alpha channel and no obstacles to the exchange platform. To create an object as desktop wallpaper, save your document with this file format. You can compress the file format with RLE compression.
This file format can store images in color modes RGB, Grayscale, Indexed Color, and Bitmap.