For packaging in Debian, Pd provides some ununsual challenges. This page is a place to document how best to fit Pd things into Debian Policy.
While .pd files are plain text, they are really like scripts most of all, and should be treated that way. That means they should go into /usr/lib/pd rather than the data dir /usr/share/pd
help patches are just Pd patches, which are just scripts, so it is also ok for them to be included in /usr/lib/pd.
Help patches are not really useful to read outside of Pd so the help patches should not go into `/usr/share/doc'
HTML, PDFs, .txt, and READMEs should go into /usr/share/doc like any other package