Not sure if this is the right location for this question, but I am pulling together my wedding program and I want to include something in memory of my father who passed away last year. There is a poem I like, but I want to change the last sentence in it. Two questions with that, is it ok to do that? Second do I have to list the author in the program, or can I just put the edited version of the poem in it? Since I am printing and distributing these to people, not sure if that is a 'copywrite' issue of any sort.