Protect Adobe Pdf files

Secure your digital contents which are in Adobe Pdf format by protecting them with password security & encryption. Pdf open password restricts un-authorized opening of your pdf however pdf owner password restricts edit, print & copy of pdf. Two modes of encryption are available to protect your data, 40-bit RC4 and 128-bit RC4. 128-bit encryption level security is much stronger than 40-bit and recommended too.