![]() In addition to the default "Add File" option, it also provides an "Add Folder" option, enabling users to lock multiple PDF files at once in batch mode. Additionally, users have the option to keep the source document password unchanged by selecting the corresponding option.Īn impressive advantage of this utility is its support for bulk locking of PDF files. The tool even offers users the flexibility of choosing between a document password, a permissions password, or both, for their PDF files. It employs the latest encryptions such as AES 256-bit and AES 128-bit to encrypt and secure PDF documents. One of the notable features of this software is its use of advanced encryption techniques. ![]() With this utility, users can effortlessly prevent actions like copying, signing, editing, printing, page extraction, filling, and commenting on their PDF files. ![]() It effectively restricts various permissions within PDF documents, providing a safeguard against unauthorized access. The SysTools PDF Lock software is an exceptional tool for locking and securing PDF files, ensuring the confidentiality of users' data and information. ![]()
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