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Deploying Signature PDF

Introduction

Signature PDF is an open-source web application that allows you to digitally sign PDF documents without relying on third-party services. Built for privacy and simplicity, it enables you to add signatures, text, and other annotations to PDF files entirely within your browser or self-hosted server.

In an era where document signing often requires expensive subscriptions or uploading sensitive documents to external servers, Signature PDF provides a self-hosted alternative that keeps your documents under your control. Whether you need to sign contracts, agreements, or any other PDF document, this tool offers a straightforward solution.

Key features of Signature PDF include:

  • Digital Signatures: Draw, type, or upload your signature and place it anywhere on a PDF
  • Privacy-Focused: Documents never leave your server, ensuring complete confidentiality
  • Text Annotations: Add text fields, dates, and other annotations to documents
  • Multiple Signatures: Place multiple signatures on a single document
  • Image Support: Add images and stamps to your PDFs
  • No Account Required: Use immediately without registration or login requirements
  • Mobile-Friendly: Works on tablets and smartphones for signing on the go
  • Batch Processing: Sign multiple documents efficiently
  • Open Source: Fully transparent codebase you can audit and customize

This guide walks through deploying Signature PDF on Klutch.sh using Docker, making it available to your team or personal use.

Why Deploy Signature PDF on Klutch.sh

Deploying Signature PDF on Klutch.sh provides several advantages:

Simplified Deployment: Klutch.sh automatically detects your Dockerfile and builds the application without complex setup.

Data Privacy: Keep sensitive documents on your own infrastructure rather than third-party services.

HTTPS by Default: Klutch.sh provides automatic SSL certificates for secure document handling.

GitHub Integration: Connect your configuration repository for automatic deployments when you push updates.

Scalable Resources: Allocate resources based on your document processing needs.

Custom Domains: Use your own domain for a professional, branded experience.

Always-On Availability: Access your document signing tool 24/7 without managing servers.

Prerequisites

Before deploying Signature PDF on Klutch.sh, ensure you have:

  • A Klutch.sh account
  • A GitHub account with a repository for your configuration
  • Basic familiarity with Docker and containerization concepts
  • (Optional) A custom domain for your instance

Deploying Signature PDF on Klutch.sh

    Create a GitHub Repository

    Create a new GitHub repository to store your Signature PDF deployment configuration.

    Create Your Dockerfile

    Create a Dockerfile in your repository:

    FROM frooodle/s-pdf:latest
    

    ENV DOCKER_ENABLE_SECURITY=false
    ENV INSTALL_BOOK_AND_ADVANCED_HTML_OPS=false
    ENV LANGS=en_US
    

    EXPOSE 8080
    

    HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
      CMD curl -f http://localhost:8080/api/v1/info/status || exit 1

    Push Your Repository to GitHub

    Commit and push your Dockerfile to your GitHub repository.

    Create a New Project on Klutch.sh

    Navigate to the Klutch.sh dashboard and create a new project for your deployment.

    Create a New App

    Within your project, create a new app. Connect your GitHub account and select your repository.

    Configure Environment Variables

    Add any optional environment variables:

    VariableValueDescription
    DOCKER_ENABLE_SECURITYfalseEnable/disable authentication
    LANGSen_USSupported languages

    Configure HTTP Settings

    Set the traffic type to HTTP and configure the internal port to 8080.

    Attach Persistent Storage (Optional)

    If you want to persist uploaded documents temporarily:

    Mount PathRecommended SizePurpose
    /tmp5 GBTemporary document storage

    Deploy Your Application

    Click Deploy to start the build process. Klutch.sh will build your container and start Signature PDF.

    Access Signature PDF

    Once deployment completes, access your instance at your app’s URL.

Using Signature PDF

After deployment, using Signature PDF is straightforward:

  1. Navigate to your deployment URL
  2. Upload a PDF document
  3. Add your signature by drawing, typing, or uploading an image
  4. Position the signature where needed on the document
  5. Add any additional text annotations
  6. Download the signed document

Security Considerations

When deploying Signature PDF:

  • Consider enabling authentication if exposing to the internet
  • Use HTTPS (provided automatically by Klutch.sh)
  • Regularly update to the latest version for security patches
  • Be aware that documents are processed on the server

Additional Resources

Conclusion

Deploying Signature PDF on Klutch.sh gives you a privacy-respecting document signing solution without the recurring costs of commercial services. By self-hosting, you maintain complete control over your sensitive documents while providing a convenient signing experience.

The combination of Klutch.sh’s simple deployment model and Signature PDF’s straightforward interface means you can have a professional document signing solution running in minutes.