A paper trimmer is a tool used to cut sheets of paper, cardstock, or other materials with precision. It typically features a straight blade that slides along a guide, allowing users to make clean, straight cuts. Paper trimmers are commonly used in offices, schools, and craft projects, making them essential for tasks like creating presentations or scrapbooking. There are various types of paper trimmers, including rotary, guillotine, and slide trimmers. Each type has its own mechanism and advantages, catering to different cutting needs. Many trimmers also come with measurement guides to ensure accurate cuts, enhancing their usability for both professionals and hobbyists.