Matrix (printing)
![Matrices created by Jean Jannon around 1640. The Garamond typeface installed with most Microsoft software is based on these designs.[1][2][3]](/uploads/202502/04/Jannon_Romain_de_l'Université_matrices1412.jpg)
![A composition case loaded with matrices for a font, used to cast metal type on a Monotype composition casting machine in the hot metal typesetting period. The matrices were formed using punches machined using pantographs from large working drawings and intermediate copper patterns, and used to cast type under the control of a keyboard.[4] This gave much cleaner results than pre-pantograph punches, which had to be hand-carved at the size of the desired letter, and allowed fonts to be issued in more sizes faster than was previously possible.[5] The font is Bembo.](/uploads/202502/04/Matrixcase-bembo-16pts1413.jpg)

In hot metal typesetting, a matrix is a mold for casting a letter, known as a sort, used in letterpress printing. However, in printmaking the matrix is whatever is used, with ink, to hold the image that makes up the print, whether a plate in etching and engraving or a woodblock in woodcut.