AWinware Pdf Encryption software is Windows compatible robust application, protects bulk pdf documents with open password and owner password restrictions. Tool uses high level RC4 security algorithms to protect content stream. Encryption mechanism provides two types of securities; low level and high level. Low level uses 40 bits strong key while high level uses 128 bits strong key to protect documents. Tool can add both open password as well as owner password into the pdf document. Open password prompt to type when someone try to open document for reading while owner password is required to edit, copy or print document, if protected previously. Adding restriction owner password prevents pdf from being print, blocks pdf edit, disable pdf content copying, disallow form filling, signing and commenting. Download free evaluation copy of pdf encryption tool to protect document with password, but a watermark will be added in output file, while full copy works perfectly. Features: # Pdf encryption tool adds both open password as well owner password. # Protects document with high level 128 bit RC4 algorithms. # Tool is easy to use, even by novice user. # Compatible with all Windows OS. # Encrypt bulk documents with password restrictions.