Description from the publisher
PDFLock - A developer dll for setting all security options, main- and user-password, encryption type ... Royalty free! Easy to use! For all well known IDEs (.NET, too!).
Other products of this publisher
PrPages - a developer module royalty free! Helps to calculate printing costs!
ImageCategorizer - the very special search-app for your images!
PDFtext - Developer dlls 32/64 bit - royalty free! Extracting text from pdf