⟩ What are tear sheets and clips for copy editors?
You can make color reductions and I am sure they will be acceptable. Journalism graphics majors at our university usually buy large portfolios--at least 12 by 17 to put their design tear sheets. Electronic PDF are becoming more and more acceptable. Some of our students here have made online digital portfolios and put their resumes and all of their tear sheets (article and design) on a website.