Pdf password encryption software is fast and reliable tool to lock bulk pdf documents with user password and restriction password (owner password). Pdf encrypt tool disable pdf print button to protect it, block pdf text (content) copying from being theft, restrict form filling, disallow page editing. Software supports both 40 bits and 128 bits encryption level for protecting files with RC4 and AES algorithms. Locking pdf files with password ensures that only intended recipients can open the documents. Pdf encryption software is best suitable application for securing batch pdf e-books. Software needs owner password for applying various pdf restrictions. Features: # Software supports all Windows including Win 7. # Pdf encryption tool supports 40 and 128 bits encryption level. # Software is easy to use and GUI based. # Pdf encryption supports batch pdf files. # Pdf encryption tool is available with inbuilt user help manual.