PDF Protect and Unprotect Tool v3.0

Freeware Tool to Secure PDF Files or Remove PDF Protection

User Ratings :   (Average Rating 4.8 Based on 512 Reviews)


PDF protect unprotect

Norton Seal windows 10 compatible

Lifetime License Validity

SysInfoTools PDF Protect and Unprotect Software provides a smart way to perform two different tasks single-handedly which lets the users apply password protection (user as well owner) and other security parameters to protect PDF files. The smart multi-functional tool enables users to secure PDF files with password-protection and other types of security restrictions. Also it allow users to remove applied restrictions on PDF files without any data loss.

  • Protects PDF files with user password as well as owner password.
  • Supports single as well as multiple PDF files for batch operation.
  • Applies various security parameters on PDF files to protect them.
  • Unlocks PDF files which are protected with owner passwords.
  • Safely removes all the existed security restrictions from the PDF files.
  • Smartly identifies all common encryption types of PDF document.
  • Allows modification (optional) in output PDF file's description.
  • Compatible with Windows 10, 8, 7, Vista, 2003, XP and 2000.

Download Now
100% Secure
  Purchase Now
Price: $39
money back gauranteesysinfotools software sale

Demo Limitations - Free PDF Protect & Unprotect Software save PDF files with watermarks

Awards & Rating

Successfully Awarded by freedownloadmanager.org


Check out the reviews and Download our software from Cnet

software informer

Download Free PDF Protect & Unprotect Tool from software.informer.com

Prominent noteworthy features of PDF Protect & Unprotect tool

PDF Encrypt
PDF Encryption

Software facilitates high level of PDF encryption as the users can password protect PDF files and apply PDF security on their documents in various ways, like restriction on PDF printing, content copying, image extraction, modification, etc.

Encrypt removal
Encryption Removal

Being a multi-functional utility, it not only applies security on PDF files but also makes PDF protection removal task successfully done in a very safe manner. A new PDF file(s) is created at user-defined location while the original file(s) is remained intact.

Encryption Levels
Identify Various Encryption Levels

PDF Protect & Unprotect is smartly designed to identify all the major encryption levels (which are applied on PDF files) for encryption as well as decryption, such as: 40-bit, 128-bit RC4, 128-bit AES, 256-bit RC4 and 256-bit AES encryption.

Batch Operation
Execute Batch Operation

Via this tool, multiple PDF files can be selected at a time to perform batch operation. This feature comes handy if you are having multiple files and you want to avoid one-by-one files selection.

Search PDF
Search PDF

If you are having number of PDF files in your system and you are not sure about their location, you can take help of this advanced search feature that will automatically search the PDF files in just a couple of seconds.

corrupted PDF
Smart Preview

The tool features smart preview option that displays all the Meta data information and other file vital properties of your PDF files that includes file name & path, title, subject, author, creator, producer, keywords, date of creation & modification, number of pages, etc.

Owner user password
Support Owner & User Password

PDF files can be protected with user password (to view, read or open the protected PDF files) as well owner password (to make changes on users' permissions). Also, the password-protected PDF files can be unlocked with this tool. It supports owner password in removal process, it can safely unlock PDF files.

Data Modification
Data Modification

Users are allowed to perform modifications on PDF files prior to actual operation as it first displays the Meta data properties of selected PDF file, and then allows users to modify them as per requirement. But the selected files are remained intact or unchanged at their original location.

Interactive Application
Interactive Application

Intuitive easy-to-use application requires no prior technical knowledge as the software is enhanced with graphical user interface that makes it more interactive for technical and non-technical users.

restore PDF file
Higher Compatibility

PDF Protect & Unprotect tool offers higher compatibility as the tool runs smoothly under all major versions of Windows-based operating systems including the latest Windows 10 (all editions).

Automatic Update
Automatic Update

Windows based utilities makes the complete conversion process seamless and quick by offering up to minute software updates. Whenever the software is updated with new unique features, you will get the timely notification via email intimation. For minor updates, no need to go for any extra formality but have to register for major version upgrade.

Comparison of Trial & Full Version

Product Features Free Version Full Version
Protects PDF files with user password as well as owner password.
Supports single as well as multiple PDF files for batch operation.
Applies various security parameters on PDF files to protect them.
Smartly identifies all common encryption types of PDF document.
Save Recovered Data Save with watermark Save Original(without watermark)
24*7 Tech Support & secure 100%
Price FREE $39
Money-Back Guarantee Download Buy Now
Specifications of Free PDF Protect and Unprotect Tool

PDF Protect and Unprotect

Norton Seal windows 10 compatible

Trial Limitations

Users can download free demo version of this tool for evaluation purpose. Demo version of the tool contains all the functionalities and features. Using demo version, users can apply password-protection as well as other restrictions on their PDF files. But the output PDF files will be saved with watermark on them. This is the only limitation which can be removed by purchasing the license version.

Basic Requirements
  • Pentium class processor
  • Minimum 512MB RAM (1GB recommended)
  • 20 MB Software installation
  • Disk Space - Enough space to store recovered output

Download PDF Protect & Unprotect Tool   Purchase PDF Protect & Unprotect Tool

Testimonials   |   EULA   |   Customization Plan

software error

software error

Frequently Asked Questions

Why PDF protection is essential for us?

PDF protection is very essential for all those users who are using portable document format in a regular manner. As PDF is commonly used by millions of computer users over the world to store data and share them among other users, its security becomes a primary concern. If a PDF file is not protected, any unauthorized user can access the file or perform changes or alteration. PDF protection can be done with a password, i.e. user password to open or read the PDF document and owner password to perform changes or modification on the PDF documents.

How to protect PDF documents?

PDF protection can easily be done with passwords. You can apply passwords for both owner as well as users to protect PDF documents. Owner password is required to make changes or apply protection or PDF security on PDF documents, while user password is required to open or read the PDF document. PDF Protect & Unprotect tool is a perfect solution to protect PDF files with password protection as well as various PDF security restrictions.

How to unlock PDF files?

The PDF Protect & Unprotect tool is a smart way to unlock PDF files and to remove PDF security from the PDF documents. This tool not only helps users protect PDF files but also helps them unlock PDF files and remove PDF security. The original PDF files are remained unchanged or intact after the actual operation.

What security restrictions I can apply on my PDF files?

Using advanced PDF Protect & Unprotect tool, users can password protect PDF documents as well as apply various types of PDF security on the documents. The tool allows users to lock PDF file by applying passwords for both owner as well as users. Also, users can set the encryption level to apply PDF security on the documents. No changes or modification will be made to the original files as they are remained untouched at their original location.

Can I use this tool if my PDF files are corrupted?

No, you cannot use PDF Protect & Unprotect tool if your PDF files are corrupted. This is the only limitation in this tool. To protect or unprotect using this Windows utility, first you need to repair corrupt PDF files. You can try advanced PDF Repair tool to repair PDF file.

Is there any dependency on additional application in using this tool?

It works as a stand-alone application that does not require Adobe Acrobat or any other tool for proper functioning.

Trusted By:

capgeminii   texas instrument.   staffordshire   sbcounty   siemens More Clients

Client Reviews


I found a batch operation and modification features beneficial. It works exactly as advertised and the price is fair as it has many important features. And the support is quick and pleasant. 10 out of 10!

Marilyn Flores

I had an installation problem, but the support team answered in just a few minutes. I had excellent experience in the SysInfoTools store. I used this tool to remove restriction from a PDF file and add restriction on some important PDF files. The reliable value for money is excellent. Thanks for such a nice tool!

Carol Garcia

SysInfoTools protect and unprotect tool is very useful to apply and remove the password protection from PDF files. It is easy to install and run because the user manual is good to understand. Thanks! Highly recommended!

Jimmy Alexander

I love this tool because it is fully compatible with my operation system, i.e Windows 8. I have checked many other tools, but totally satisfied with SysInfoTools. I would like to give 5 star to this tool!

Sharon Hill

You Might Be Interested in These Products Too

At Service Since 2010
Trusted by Millions
SSL Secure