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 password protect PDF files PDF metadata editor supports Save as WWF 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