Stirling PDF

Stirling-PDF is a robust, self-hosted PDF manipulation platform that brings enterprise-grade document processing capabilities to your own infrastructure. Unlike cloud-based PDF services that require uploading sensitive documents to third-party servers, Stirling-PDF performs all operations locally, ensuring complete privacy and control over your documents. With a modern web interface accessible from any browser, it provides over 50 different PDF operations including merging, splitting, conversion, OCR, compression, watermarking, digital signatures, and redaction. The tool has gained widespread adoption among privacy-conscious organizations, law firms, financial institutions, and anyone who regularly works with confidential documents.

Common Use Cases

Legal teams and law firms use Stirling-PDF to merge case documents, redact sensitive information, apply digital signatures, and convert scanned documents to searchable PDFs with OCR—all while maintaining client confidentiality. Financial departments leverage it for batch processing invoices, compressing large document archives, adding watermarks to financial reports, and ensuring PDF/A compliance for long-term archival. Marketing and design teams rely on Stirling-PDF to optimize PDF file sizes for web distribution, convert documents between formats, extract images from PDFs, and merge presentation materials. IT and operations teams deploy it as a shared organizational tool for standardizing document processing workflows, eliminating dependencies on expensive Adobe licenses, and ensuring documents never leave the company network.

Key Features

• 50+ PDF operations: merge, split, rotate, compress, convert, extract, and more
• OCR (Optical Character Recognition) with Tesseract for making scanned documents searchable
• Convert between PDF and Office formats (Word, Excel, PowerPoint)
• Image to PDF and PDF to image conversion with quality controls
• Digital signature support for legally binding document signing
• Redaction tools for permanently removing sensitive information
• Watermarking and custom overlays for document branding
• PDF compression with adjustable quality settings
• Metadata editing and removal for privacy
• PDF/A conversion for long-term archival compliance
• Batch operations for processing multiple files simultaneously
• Multi-language interface supporting 20+ languages
• RESTful API for automation and integration
• Dark mode interface and mobile-responsive design
• No file size limits or usage restrictions

Why deploy Stirling-PDF on Hostinger VPS

Deploying Stirling-PDF on a Hostinger VPS ensures that sensitive documents never leave your infrastructure, providing complete privacy and compliance with data protection regulations like GDPR, HIPAA, and SOC 2. Unlike subscription-based PDF services that charge per user or have file size restrictions, your VPS deployment offers unlimited usage for your entire organization at a fixed cost. Hostinger VPS provides the processing power needed for resource-intensive operations like OCR, batch processing, and high-resolution PDF rendering, with performance that scales based on your chosen plan. The application's stateless architecture makes it perfect for VPS hosting—no complex database management, just reliable document processing whenever you need it. With full control over updates, backups, and security configurations, Hostinger VPS gives you enterprise-grade PDF capabilities while maintaining sovereignty over your documents.