I'm packing the gifshuffle software. source:http://www.darkside.com.au/gifshuffle/ almost all files appear to be public domain. but to do it: egrep -sriA25 --with-filename '(public dom|copyright)' I found a file mentioning the gif. I wonder how I proceed in this case. after reading this article I was afraid: https://www.gnu.org/philosophy/gif.html thanks -- Gustavo Soares de Lima Logicus Tecnologia de Informação e Comunicação