Restricting access to your confidential and private PDF files is easy with PDF Lock. This tool offers users high levels of security to their PDF files by allowing them to encrypt it with a strong password and also disabling some of the common functionalities such as printing and editing the content so that the data remains safe at all times.
PDF 파일들에 대한 무단 접근을 방지하기 위한 고급 보안
