Nutrient DWS MCP Server is an MCP server implementation that integrates with the Nutrient Document Web Service (DWS) Processor API, enabling AI assistants to access a suite of PDF processing tools. It supports operations such as document creation (merging PDFs, Office docs, and images), editing (watermarking, rotating, flattening, redaction), format conversion (PDF ⇄ DOCX, images, PDF/A), digital signing (PAdES-compliant signatures with trusted certificates), data extraction (text, tables, or structured content), security features (redaction presets, password protection, permission control), advanced OCR (multi-language, image and scan recognition), and optimization (compression without quality loss). The server is designed for Claude Desktop as the primary MCP client (tested with Claude Desktop 3.7 Sonnet), but other MCP clients may work with varying results. It requires an API key (NUTRIENT_DWS_API_KEY) and can operate in an optional sandbox mode controlled by SANDBOX_PATH to restrict filesystem access, ensuring all IO stays within a sandbox directory. Processed files will be saved to a location determined by the LLM; when sandbox mode is enabled, this location resides inside the sandbox directory. The README emphasizes security through sandboxing and explicit configuration, and the server runs on macOS and Windows for now (Linux support is not listed).