What are some alternatives?
When comparing PDF Merge tool and PDFMerge, you can also consider the following products
PDF-Shuffler - PDF-Shuffler is a small python-gtk application, which helps the user to merge or split pdf...
PDFsam - PDFsam Basic, a free, open source, multi-platform software designed to split, merge, extract pages, mix and rotate PDF files
PDFMate Free PDF Merger - PDFMate Free PDF Merger works as a PDF Joiner, PDF combiner, PDF breaker, image to PDF converter and PDF encryptor. With PDF Merger, you can batch merging pdf files, combining specified pages or converting scanned image file to create new PDF file.
PDFill - Open, View, Edit, Save and Print PDF Documents without Adobe Acrobat
UnityPDF - UnityPDF lets you merge, split, divide, rotate, protect PDF files and more.
Ultra PDF Merger - Ultra PDF Merger is a freeware PDF utility that joins your PDF files, or part of them, together.