Advanced Bulk PDF Merger - Version 1.12 Advanced Bulk PDF Merger automates the task of merging multiple PDF files into one PDF document. The application automatically imports all PDF documents from a specific directory and all of its subdirectories. Alternatively, users can manually import PDF documents that need to be merged together. By default the application combines all pages from input PDF documents, however users are provided with an interface to define specific page numbers or page number ranges that should only be merged together. In addition to this, the application provides an interface to separate merged PDF files with optional blank pages. Advanced Bulk PDF Merger automatically persists most recently used input and output directory paths, detects password-protected input PDF files, allows users to sort input PDF files by path, size and creation date and permits assignment of custom names to output PDF documents.