is it OK to upload Gutenberg ebooks?

[Paola]

I am assuming this is fine, as Project gutenberg's site states

Our ebooks are free in the United States because their copyright has expired. They may not be free of copyright in other countries. Readers outside of the United States must check the copyright laws of their countries before downloading or redistributing our ebooks. We also have a number of copyrighted titles, for which the copyright holder has given permission for unlimited non-commercial worldwide use.

but I thought I'd double check just in case.