PDF Split-Merge is a stand-alone tool for splitting, merging PDF documents, allows you to split/merge large PDF files into smaller PDF files. PDF Split Merge is offered as an easy-to-use GUI (Graphical User Interface) application, and command-line application.The split functionality lets you split one or more PDF files based on page groups, page ranges. The merge function lets you quickly combine a collection of PDF documents and page sets. Here are some key features of "Ap PDF Split-Merge":