PDF Password
A free command-line tool that password-protects PDF documents without exposing data online.
Free Download
Secure PDFs Locally with Simple Commands
PDF Password makes it easy to password-protect PDF documents without exposing your data to an online tool. Simply download and install PDF Password for Free, then use basic command-line syntax to apply password-based encryption to your PDF documents.
Encrypting a PDF with a password:
Decrypting a PDF:
PDF Password also supports batch processing and multi-file mode by using the '-batch' parameter and an input file mask:
The command-line syntax easily integrates into automated processes, and data never leaves the local system on which PDF Password is installed. The tool is available for Windows, Linux, and macOS.
Secure PDFs in Code
PDF Password is powered by the PDF cryptography components found in Secure PDF, our flagship PDF security library. In addition to PDF encryption and decryption, Secure PDF provides the ability to sign PDFs with cryptographic standards like PAdES, verify PDF signatures, and create and modify fillable PDF forms, all through a simple component API.
To get started adding PDF security to your applications, you can try Secure PDF's free trial today.
Modern Cryptography
Supports all modern cryptographic PDF encryption and decryption standards.
Batch Mode Support
Batch mode and filemask syntax ensure easy encryption of multiple files at once.
Always Local
Data never leaves the local machine on which PDF Password is installed.
Easy to Use
Simple command-line syntax ensures easy adoption for technical and non-technical users.
Easy to Automate
PDF Password's command-line execution is easy to embed in larger automated processes.
Cross-Platform Support
All features are available cross-platform: Windows, Linux, and macOS.
Red Carpet Vol. 1 2026 Now Available
New Tools for EDI Development, Expanded MCP Hosting & Integration, Enterprise n8n Nodes, Improved JavaScript Editions, and More
The latest Red Carpet Subscription update includes the new EDI SDK for object-oriented EDI development, additional MCP SDK features for HTTP/S communication with LLMs, enterprise n8n nodes for secure and compliant workflow automation, and the IPWorks NFS toolkit for developing NFS clients and servers. The release also features the full release of IPWorks NFC, and significant improvements across all of our JavaScript editions.
Download PDF Password or read the update highlights.
Product Features
- Support for modern PDF encryption standards.
- Simple command-line syntax.
- Batch mode and multi-file encryption.
- Data always stays local.