DEC LN03+ Sixel graphics file
File type: Graphics file
Files with the .ln03 file extension contain graphics encoded in the DEC LN03+ Sixel format.
The format is associated with the DEC LN03+ laser printer and stores Sixel commands used to transmit raster image data.
File type category:
Graphics file
Date updated: October 2, 2026
The .ln03 file extension identifies graphics data intended for the DEC LN03+ printer from Digital Equipment Corporation (DEC). Sixel is an escape-sequence-based graphics format in which an image is represented as character data for transmission to a compatible DEC device.
An LN03+ Sixel file is not a modern, general-purpose image file. It is device-oriented output that was typically produced for printing or display through DEC systems and may include control sequences as well as the image data.
The format is associated with older DEC systems and is unlikely to be in active use or supported by current mainstream graphics software.
To view an .ln03 file, use a DEC-compatible terminal or printer emulator with Sixel support. It can also be sent to a working DEC LN03+ printer when the file was prepared for that device.
A regular image viewer or text editor will generally not render the graphics correctly.
To convert a DEC LN03+ Sixel file, use software that can interpret its Sixel data and render it, after which the rendered image may be saved in a more common graphics format.
Language
