Stirling PDF is a self-hosted, open-source PDF manipulation tool built for users and organizations that prioritize data privacy and control. It offers a comprehensive suite of over 50 tools for editing, converting, merging, splitting, and securing PDFs—all runnable locally on your own infrastructure. It serves as a powerful alternative to proprietary PDF tools like Adobe Acrobat, Smallpdf, PDF-XChange Editor, and Foxit PDF Editor, offering full control without cloud dependencies.
Key Features:
- Self-Hosted: Ensures data remains within your environment, addressing privacy and compliance concerns.
- Open Source: Allows for code inspection, customization, and community contributions.
- Comprehensive Toolset: Includes functionalities like merging, splitting, compressing, redacting, converting, and more.
- Pipeline Automation: Enables the creation of multi-step workflows for automated PDF processing.
- Cross-Platform Compatibility: Supports deployment via Docker, making it accessible across various operating systems.
Use Cases:
- Secure Document Processing: Redact sensitive information and sanitize metadata before sharing.
- Automated Workflows: Create pipelines to automate repetitive PDF tasks, such as redaction, compression, and renaming.
- Document Management: Organize and manipulate large volumes of PDF documents efficiently.
- Internal Tooling: Provide a secure and customizable PDF solution for internal teams.

