PDFsam - PDFsam Basic, a free, open source, multi-platform software designed to split, merge, extract pages, mix and rotate PDF files
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
Master PDF Editor - Master PDF Editor is complete solution for editing PDF and XPS files.
PDFtk - PDFtk is a simple tool for doing everyday things with PDF documents.
PDF24 PDF Creator - Create PDF and convert documents to PDF for free with the free PDF24 PDF Creator.
PDFTK Builder - PDFTK Builder is a free graphical interface to for PDFTK, making it much easier to use.