Printer Command Language (.pcl)
The PCL file extension, Printer Command Language, is a page description language developed by Hewlett-Packard (HP) in the 1980s. It is used to control printer features and describe the layout of text and graphics on a printed page. PCL files contain commands that instruct the printer on how to print the document, including details like size, layout, and resolution. Initially designed for HP's inkjet and dot matrix printers, PCL has evolved to support various printer types, including laser printers. Its simplicity and efficiency have made it a widely adopted standard in the printing industry.