What is the meaning of Compositor?

A person who sets type; a typesetter.

One who, or that which, composes or sets in order.

A system that puts images together in a buffer (such as individual windows on a desktop) to generate a final display image.

composer

composer (one who composes music)

a maker, arranger, composer

composer (one who composes; an author)

composer (one who composes music)

songwriter

composer

Source: wiktionary.org