Photo engraving is a process for creating a relief printing surface using photographic techniques combined with chemical or mechanical methods. A photographic image is transferred onto a metal or other suitable surface, which is then etched or engraved to produce raised areas that hold ink for printing.
This technique allows for highly detailed reproductions of photographs, illustrations, and text, making it valuable in printing, publishing, and graphic arts. Photo engraving was historically important for mass-producing images in books, newspapers, and magazines, and it remains a significant process in specialized printmaking and fine art applications.