PDFsam Basic extremely useful tool for splitting and merging PDFs in a configuration that suits you.

jPDF Tweak is a Java Swing application that can combine, split, rotate, reorder, watermark, encrypt, sign, and otherwise tweak PDF files.

qvPDF is a PDF creator for Windows. It's implemented as printer driver and uses plugins to execute different actions after creating the PDF.

PDF-Tools is a flexible & power wizard-driven application for batch creating, manipulating, and modifying PDF files.