There are many free PDF merge tools out there but I saw a gap in the market. I wanted a tool available to everyone that was free with no confusing, spammy ads getting in the way. I also wanted special features missing from competitors. PDF Merge Buddy presents a TOC with all the PDF documents hyperlinked with page numbers. Easily preview each document. Do you need to rotate an image? Covered. Drag and drop, rearrange the order? Covered. Best part always improving from user suggestions.