Mgosoft PDF Security SDK

With PDF Password Remover that can help you generate PDF files with no password from the original PDF files which are not permitted to be edited, changed, printed, copied, added annotations, etc. With PDF Encrypt that can help you set open passwords for your PDF files, preventing the PDF files from opening or reading. You can also use this tool to set owner passwords, preventing your PDF files from printing, editing, coping, and changing.