A printing device includes a print engine, and a controller. The print engine performs an index print to print a plurality of images on one or more sheets, the plurality of images corresponding to respective ones of a plurality of files stored in an external memory. The controller controls the print engine. The controller performs determining a type of each of the plurality of files stored in the external device. The controller converts each file, which is determined as a non-image file and includes a page description language, to an image file representing contents of the each file by interpreting the page description language included in the each file. The controller generates a print command for the index print by referring to each image file which is stored in the external memory and each image file generated in the converting.