Chris Marusich writes: > We'll see what they say! Upstream has confirmed that the license is GPLv2: https://mailman.boum.org/pipermail/mat-dev/2018-April/000158.html They also confirmed the following: * MAT is not actively maintained and doesn't run under Python 3. * MAT2 is under development. * MAT has some known limitations, "like leaving metadata in file embedded in PDF, like images." That said, even upstream said that we should go with MAT, since there is no known better alternative, and later we can switch to MAT2. I think we should add it, without worrying about making the GUI work, and we should add these warnings to the package description. Thoughts? -- Chris