Photo or Image Forensic "type of camera used to take the image"

You can free software named Xnview to view which device was used to take photo, which software(photoshop etc.) or which scanner used to convert it to digital format ?

XnView provides a listing of directories in the left pane, and shows what images are in a particular directory in the upper-right pane.When you select an image, it appears in the lower Preview pane. In addition to this, clicking on the Properties tab will display information on a particular image, including its file format, timestamps, size,compression used, and other attributes. By clicking on the EXIF tab, you can display extra information, which could include the type of camera used to take the image, the exposure, the date the picture was taken, and other facts.