Editor: PDFToolBox is a PDF processing utility.
Features
* merge many PDF documents into a single document
* split a PDF document into pages
* create Visual Watermark on a PDF document
* Extract text from a PDF document to a text file
* attach files to a PDF document
* standalone software (please check requirements)
* Adobe Acrobat or Adobe Reader not required
* can handle password protected PDF documents
* easy to use user interface
* the original PDF file will always remain intact, in case of error you won't lose anything