Montage allows you to create a single image built from a series of other images. Input images are scaled to fit a specified tile size, a square of 120x120 by default, and then places the images side by side in a series of rows. By default 5 tiles are used in a row and 4 rows are produced. If more than 20 images are supplied then additional output montages are produced. You can specify a larger number of tiles to use for a single montage, and thus the number of input images to use, with the -tile option.
Montage offers a large set of options.
The page size can be set so that the postscript output will fit on various paper sizes. Input files can be identified with labels using various fonts. 3D shadows can be added to input images as well as a textured backdrop in the tile areas and borders not covered by input images. Convert and Identify are complimentary programs. Identify can be used to determine, based on the files magic number, the image format of a particular file.