Features of Lock a PDF or PDF Locker

lock pdfLock PDF with User and Owner Password

With this tool users can lock PDF files with two security methods; User and Owner Password. Secure PDF file with user/open password to restrict unwanted users from accessing/opening the PDF file or with owner password to disable printing, editing, copying and extracting functions of a PDF file.

batch supportBatch Processing Feature

Software offers batch processing feature to lock multiple PDF files in one shot. Press “ctrl” key to select and import them in the control panel of the program and then secure them in few mouse strokes.

easyEasy to Operate Utility

Protect a PDF tool comes with an interactive and user friendly GUI that makes it easy to operate. Even an entry level computer user can use this tool to lock their PDF files easily.

bestA Stand Alone Utility

Protect a PDF is an independent utility which doesn’t require Adobe Acrobat or Adobe Reader to be installed in the PC to lock PDF files.


supportSupport 40bit RC4 to 256bit AES Encryption

With this handy tool you can secure PDF files from the basic 40bit RC4 to latest 256bit AES encryption same as user by Acrobat x to lock PDF files.


maintainMaintains Data Integrity and File Formatting

This tool is suitable for locking your sensitive and important PDF documents as the tool maintains the integrity and file formatting of your documents while encrypting them with password.

trialComes as a Free Evaluation Version

This tool comes as a free trial version too by which users can evaluate this tool before purchasing the licensed version of this tool. 

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