A cross platform retro 8-bit image, video, Sinclair ZX Spectrum output and artwork tool.
Image to ZX Spec(trum) is a utility to convert image and video files to a REAL ZX Spectrum as a slideshow/video, to a Spectrum compatible file format for games development (SCREEN$ "scr" format) or create retro art posters (images of any size - memory limited - can have a Spectrum effect applied to them).
Full user documentation is available here and provided as a readme.html included in the zip distribution.