jPDFSecure is a Java library that can digitally sign PDF documents and change security settings on PDF Documents. With jPDFSecure, your application or java applet can encrypt PDF documents, set permissions and passwords, and create and apply digital signatures.
jPDFSecure has a simple interface to load PDF documents from files, network drives,URLs and even input streams, which can be generated runtime or come directly from a database. After changing security settings, jPDFSecure can save the document to a file, a java.io.OutputStream or a javax.servlet.ServletOutputStream when running in a J2EE application server to output the file directly to a browser.
Digitally Sign PDF Documents
Encrypt / Decrypt PDF Documents (AES 256 encryption)
Support for Timestamp Servers
Set / Remove Permissions: Print, Print High Resolution, Copy or Extract Content, Extract Content in Support of Accessibility, Modify the Document, Add / Modify Annotations, Fill Form Fields and Sign
Set / Remove Passwords: Open Password, Master Permissions Password
Works on Windows, Linux, Unix and Mac OS X (100% Java)
No Need for Additional Drivers or Software when Deploying
||Free to try