A guillotine trimmer is a cutting tool used primarily for trimming paper, photos, and other materials. It features a straight blade that pivots downwards, allowing for precise cuts along a straight edge. This design makes it easy to achieve clean, straight lines, which is especially useful in crafting, scrapbooking, and office tasks. These trimmers come in various sizes and can handle different thicknesses of materials. Many guillotine trimmers also have measurement guides to help users align their cuts accurately. They are popular among professionals and hobbyists alike for their efficiency and ease of use.