Grab the best solution – PDF Merge Tool to merge PDF files as one PDF file format with attachments. Both individual and technical users can use this application to merge PDF files as one PDF Adobe document. One can use this tool on any 64bit or 32bit Windows Operating Systems including Windows Vista, XP, 7, 8, 8.1, and 10. Without loss and issue, the software can also merge PDF files as one PDF. By using this tool, to know how the tool works before purchasing it, you can use its Free Demo Version, which is applicable to merge first 5 PDF files without any cost.