CL-PNG
CL-PNG reads and writes PNG (Portable Network Graphics) image files. It is implemented as a set of CFFI bindings to libpng.

License: LGPL

Homepage: http://www.ljosa.com/~ljosa/software/cl-png/.

Before version 0.5, CL-PNG was a native Common Lisp PNG reader/writer, instead of FFI bindings.

ASDF-install package (obsolete) http://www.ljosa.com/~ljosa/software/cl-png/download/cl-png-0.6.tar.gz