SysTools PDF Lock Software
Best PDF Locker to Lock PDF With Password Protection Easily
- PDF Lock Tool Allows to Lock PDF Files to Secure Confidential Information
- Protect PDF With Restrictions Like Printing, Copying, Editing, Extracting Pages
- Add Password to PDF to Prevent Unauthorized Viewers from Accessing Document
- Secure PDF File With Strong Password Protection Ensuring Data Security and Privacy
- PDF Encrypt Tool to Block Commenting and Editing Form Filling in Editable PDF File
- PDF Protector to Encrypt PDF With Strongest Security Algorithm like AES 256
- Encrypt a PDF With 4 Types of Protection - AES 128, 256, RC4- 128, and RC4- 40
- PDF Password Protector to Lock PDF Changes Like Signing, Form Filling, Extracting
- Installation of Adobe Acrobat Tool Not Required to Password Protect PDF Document
- Keep Source Document Open Password Same Option to Use Existing Password
- “Add File” / “Add Folder” Option to Add PDF Files in Software Panel
- PDF Lock Software is Compatible with Windows OS 11 and Below Versions
Free Live Demo - SysTools PDF Lock Software Fully Secured Download Version
The PDF File Data Remains Confidential & Passwords will Not Be Saved.
Password Protect PDF File
Supports to Secure All Type PDF Files
Bank Statement
PDFs
Receipts
Bills
Aadhar Card
PDF
PDF Contracts
& Agreements
PDF
Forms
Journals
& e-books
Advanced Features
Know Why This PDF Lock Tool is The Best Choice For All
- Saves resultant PDF files on desktop by default.
- Users can opt to set a preferred destination for saving resultant files.
- Auto-analyzes password-protected files upon adding to the software.
- Provides the “Remove” option to selectively remove unwanted PDF files in bulk mode.
- The “Remove All’ option removes accidentally added PDF files or folders.
- With this tool, you can selectively apply any of the provided permission restrictions.
- The Live Runtime status of the process shows the number of files and the number of successful locking.
- Provides the “Stop” option to abort the process in between while bulk locking PDF files.
- Dialogue prompt gives the option to skip processing password-protected PDF files.
- Maintains the folder structure of PDF files intact throughout the process.
- Run the process again by simply going back home instead of relaunching the tool.
- Adobe Acrobat is not required for password restriction purposes.
- An independent application to efficiently lock PDF files.
- Choice to put either document open password or a permission password as per preference.
Watch Live Video of PDF Lock Software
Steps to Secure PDF File from Editing, Printing, Copying, Etc.
Lock PDF Files With Password Securely in Bulk
PDF Lock Software is an independent and standalone tool to password protect PDF document. Using the PDF locker, the document creator can prevent the misuse and tampering of data while limiting the access. Moreover, it is the best way to secure a file with a strong password. Additionally, this tool provides a simplified interface with dual features to add PDFs in batch mode. The bonus option, i.e., “remove” & “remove all” to eliminate the unwanted documents without leaving the software dashboard.
PDF Protector to Protect PDF With Restrictions
SysTools PDF Lock Tool, one of the powerful and reliable software for PDF security. Besides password protection, document owners can use different modes of restrictions or change permissions to ensure data protection when sharing or archiving the document. These permissions are commonly known as the owner password. This tool provides “Apply Document Restrictions” to control the viewer's actions. To lock PDF, this software provides multiple features, take a look below to know how it works:
- NOT Allowed: Choosing the NOT Allowed feature helps to limit the actions like editing, content accessibility, commenting, text copying, printing, filling form fields, signing, extracting pages, document assembly, etc. These restrictions prevent unauthorized users from directly accessing or misusing the data.
- Inserting, Deleting, and Rotating Pages: Selecting this feature allows users to insert, rotate, and delete the text for legitimate purpose. Besides this, the other actions like editing, printing, content copying, and more are disabled.
- Filling in Form Fields and Signing Existing Signature Fields: To enable the signing and form filling action, choose this feature. SysTools PDF Locker offers this amazing option allowing only signing and form editing in the document.
- Commenting, Filling Fields, Signing Signature Fields: PDF Lock Software provides the feature of commenting, form filling, and signing in the secured document. In this way, users can add a review or comments without modifying the entire PDF file.
- Any Except Extracting Pages: PDF Protector tool offers another demanding feature under the Changes section. Using this option, document owners can permit extracting pages while limiting the other necessary actions.
- Printing: The option of Apply Document Restrictions provides the feature of controlling the print action. Using the Printing - Not Allowed option, owners can stop viewers from making a copying of the document at once.
PDF Encrypt Software to Protect PDF With File Encryption
To lock PDF document, SysTools PDF Lock Software offers the strongest and powerful file encryption feature. Using the best PDF encryption method, owners can stop editing, printing, extracting, and including the accessibility of the document. The robust standards of encryption are commonly known as AES (advanced encryption standards) that resist unauthorized intervention or attacks like brute-force. Here are the types of encryption supported by the encrypt PDF tool:
- AES-256: The latest and ultra strong PDF encryption technique to protect highly sensitive data like financial records, government documents, legal, and more. This is the fastest and unbreakable security algorithm.
- AES-128: This software provides another encryption type, i.e. AES 128. It is an ideal security feature ensuring data protection and integrity. This PDF protection is a fast and reliable way to meet document security regulations like GDPR.
- RC4-128 & 40: SysTools PDF locker offers RC4-128 and 40 bits protection. These encryption algorithms are comparatively slow, yet helpful to ensure the data security. It is mainly used to secure a document having copyrighted content.
Core Features of PDF Locker Software
Understand The Advance Feature and Secure PDF from Editing
Protect PDF with Permission Password
Apply permission restrictions on your PDF files to avoid any unauthorized actions. This fascinating PDF Lock Tool provides users with seven different types of permissions to restrict. One can choose to apply all of them or selectively choose some according to their preference. The provided permissions are Copy, Edit, Fill, Comment, Sign, Page Extraction, and Print. You can select to restrict any or all permissions with password of your choice.
Password Protect PDF with Document Password
This expert utility provides users with the option to password protect PDF files with a document-open password as well. It restricts access to PDF documents securely. You can choose to apply the document open password with the permission password or alone as per your preference. Moreover, you can generate a new password to protect your files, or if your PDF already has an existing document open password you can select the “Keep the Source Password Same” option to preserve the existing password in the resultant PDF files.
Add Multiple PDFs in Bulk
The Add Folder option of this PDF encrypt tool lets you add multiple PDF documents in one go to save time and effort. You can simply add an entire folder of PDF files to process and protect with a password. During bulk mode, if you want to remove an unwanted file from the uploaded folder then you can do so with the “Remove” option. Moreover, to remove an entire folder or all the uploaded files from the preview panel, use the “Remove All” option.
Multiple PDF Encryption Options
This PDF Lock tool provides multiple encryption options to encrypt your applied passwords; document open and permission. The software supports the latest encryption AES 256-bit as well. It provides several encryption options including AES 256-bit, AES 128-bit, RC 440-bit, and RC 4128-bit. You can choose either of the provided encryptions to encrypt PDF your applied passwords by simply selecting the Encryption option.
Keeps Folder Structure Intact
This PDF Locker assures preserving the original folder structure intact as the original. Using this tool, you can be sure that your folder structure is unaltered while password-protecting the PDF files. Even during bulk processing, the data integrity of the user files stays intact and preserved.
Supports All PDF Versions
You can lock and encrypt any PDF file using this PDF lock software as this astonishing utility supports all latest and older versions of PDF files. Be it PDF version 1.1, 1.2, 1.7, or 2.0, this utility supports password-protecting them all. So, no matter which PDF document version you have, you can easily use this PDF encrypt software to save your files from unauthorized copying and editing information.
PDF Lock Software - Specifications
Software and Hardware Requirement to Secure PDF File Using This Tool
| Name: | SysTools PDF Lock |
| Version: | 3.1 |
| Size: | 44.5 MB |
| New Release: | July, 2023 |
| UI Language: | English |
| MD5: | 561eed46794514a52190ae7be008b411 |
| Free Version: |
Trial Limitations
Limitations
Free PDF lock tool allows to user to password protect 5 PDF files only with SysTools as watermark. To overcome this limitation buy PDF locker full version and activate it.
System Specifications
Hard Disk Space
100 MB of free hard disk space required
RAM
4 GB RAM
Processor
Intel® Core™ 2 Duo CPU E4600 @ 2.40GHz 2.39GHz
Pre-Requisites
Microsoft .NET framework 4.5 or above should be installed.
Supported Editions
- Microsoft Windows – Win 7 / 8 / 8.1 / 10 (32-Bit & 64-Bit), Windows 11 (64-bit), & Windows Server 2008 / 2012 R2 / 2016 / 2019 / 2022
FAQs
Electronic Delivery
Software Customization
If you need to customize PDF lock tool or need additional features then, Request Quote
PDF Lock Software - Comparison
Understand Differecne Between Free and Full Version Software
| Features | Free Version | Full Version |
|---|---|---|
| Bulk Processing of PDF files | ||
| Add File / Add Folder option | ||
| Lock PDF Permissions | ||
| Windows OS (All Versions) Supported | ||
| Supports all PDF Versions | ||
| Lock PDF File with Password | ||
| Saves Resultant Locked PDF | Only 2 PDF Files | |
| Lock without 'SysTools Demo' Watermark | ||
| Cost | FREE | $29 |
PDF Password Protector Tool - FAQs
Listed Commonly Asked Questions and Answers
Here are the quick and simple steps to execute the process:
- Launch the PDF lock software on your system
- Click Add File / Add Folder to load PDFs
- Set the preferred destination for resultant files.
- Apply permissions and passwords of your choice.
- Finally, click the Lock button to restrict PDF files.
This utility provides seven types of restrictions which are Edit, Copy, Comment, Fill, Sign, Print, and Extract Page.
It absolutely does! It supports numerous PDF encryption tool including AES 256-bit, AES 128-bit, RC 440-bit, and RC 4128-bit.
Yes, it does. This astonishing PDF password lock software supports processing all versions of PDFs whether the latest or older.
Yes, this utility provides the option to users to apply both or either of the permission or document open passwords. One can apply the passwords as per their preference.
Yes, there is! This PDF protection utility provides an option to keep your source document password the same. To activate the feature, simply enable the checkbox for the “Keep Source Document Password Same” option.
Using the demo version, you can process and encrypt two PDF files. Moreover, the resultant files will contain the “SysTools Demo” watermark. To lock an unlimited number of files without a watermark, opt for the full version.
