PictBridge

PictBridge is a historical computing industry standard introduced in 2003 from the Camera & Imaging Products Association (CIPA) for direct printing.

PictBridge-capable printers typically have a USB type A port which is connected by cable to the USB port of a PictBridge-capable digital camera (typically a Mini-B).

The user selects the images on the camera to print.

[2] In practice, this means that PictBridge cannot be implemented as free and open source software, other than by reverse-engineering the protocol, if publishing source code of an implementation of the PictBridge standard is considered to count as "disclosing information" from the specification.

A printer may implement functions similar to a PictBridge printer without the non-disclosure agreement merely by treating the camera's memory as a USB mass storage device, although the user interface for image selection would necessarily be on the printer rather than the camera in this case.