— name: nutrient-document-processing description: Process, convert, OCR, extract, redact, sign, and fill documents using the Nutrient DWS API. Works with PDFs, DOCX, XLSX, PPTX, HTML, and images. origin: ECC — # Nutrient Document Processing > **Note:** This skill integrates with the Nutrient commercial API. Review their terms before use. Process documents with the [Nutrient DWS Processor API](https://www.nutrient.io/api/). Convert formats, extract text and tables, OCR scanned documents, redact PII, add watermarks, digitally sign, and fill PDF forms. ## Setup Get a free API key at **[nutrient.io](https://dashboard.nutrient.io/sign_up/?product=processor)** “`bash export NUTRIENT_API_KEY="pdf_live_…" “` All requests go to `https://api.nutrient.io/build` as multipart POST with an `instructions` JSON field. ## Operations ### Convert Documents “`bash # DOCX to PDF curl -X POST https://api.nutrient.io/build \ -H "Authorization: Bearer $NUTRIENT_API_KEY" \ -F "[email protected]" \ -F 'instructions={"parts":[{"file":"document.docx"}]}' \ -o output.pdf # PDF to DOCX curl -X POST https://api.nutrient.io/build \ -H "Authorization: Bearer $NUTRIENT_API_KEY" \ -F "[email protected]" \ -F 'instructions={"parts":[{"file":"document.pdf"}],"output":{"type":"docx"}}' \ -o output.docx # HTML to PDF curl -X POST https://api.nutrient.io/build \ -H "Authorization: Bearer $NUTRIENT_API_KEY" \ -F "[email protected]" \ -F 'instructions={"parts":[{"html":"index.html"}]}' \ -o output.pdf “` Supported inputs: PDF, DOCX, XLSX, PPTX, DOC, XLS, PPT, PPS, PPSX, ODT, RTF, HTML, JPG, PNG, TIFF, HEIC, GIF, WebP, SVG, TGA, EPS. ### Extract Text and Data “`bash # Extract plain text curl -X POST https://api.nutrient.io/build \ -H "Authorization: Bearer $NUTRIENT_API_KEY" \ -F "[email protected]" \ -F 'instructions={"parts":[{"file":"document.pdf"}],"output":{"type":"text"}}' \ -o output.txt # Extract tables as Excel curl -X POST https://api.nutrient.io/build \ -H "Authorization: Bearer $NUTRIENT_API_KEY" \ -F "[email protected]" \ -F 'instructions={"parts":[{"file":"document.pdf"}],"output":{"type":"xlsx"}}' \ -o tables.xlsx “` ### OCR Scanned Documents “`bash # OCR to searchable PDF (supports 100+ languages) curl -X POST https://api.nutrient.io/build \ -H "Authorization: Bearer $NUTRIENT_API_KEY" \ -F "[email protected]" \ -F 'instructions={"parts":[{"file":"scanned.pdf"}],"actions":[{"type":"ocr","language":"english"}]}' \ -o searchable.pdf “` Languages: Supports 100+ languages via ISO 639-2 codes (e.g., `eng`, `deu`, `fra`, `spa`, `jpn`, `kor`, `chi_sim`, `chi_tra`, `ara`, `hin`, `rus`). Full language names like `english` or `german` also work. See the [complete OCR language table](https://www.nutrient.io/guides/document-engine/ocr/language-support/) for all supported codes. ### Redact Sensitive Information “`bash # Pattern-based (SSN, email) curl -X POST https://api.nutrient.io/build \ -H "Authorization: Bearer $NUTRIENT_API_KEY" \ -F "[email protected]" \ -F 'instructions={"parts":[{"file":"document.pdf"}],"actions":[{"type":"redaction","strategy":"preset","strategyOptions":{"preset":"social-security-number"}},{"type":"redaction","strategy":"preset","strategyOptions":{"preset":"email-address"}}]}' \ -o redacted.pdf # Regex-based curl -X POST https://api.nutrient.io/build \ -H "Authorization: Bearer $NUTRIENT_API_KEY" \ -F "[email protected]" \ -F 'instructions={"parts":[{"file":"document.pdf"}],"actions":[{"type":"redaction","strategy":"regex","strategyOptions":{"regex":"\\b[A-Z]{2}\\d{6}\\b"}}]}' \ -o redacted.pdf “` Presets: `social-security-number`, `email-address`, `credit-card-number`, `international-phone-number`, `north-american-phone-number`, `date`, `time`, `url`, `ipv4`, `ipv6`, `mac-address`, `us-zip-code`, `vin`. ### Add Watermarks “`bash curl -X POST https://api.nutrient.io/build \ -H "Authorization: Bearer $NUTRIENT_API_KEY" \ -F "[email protected]" \ -F 'instructions={"parts":[{"file":"document.pdf"}],"actions":[{"type":"watermark","text":"CONFIDENTIAL","fontSize":72,"opacity":0.3,"rotation":-45}]}' \ -o watermarked.pdf “` ### Digital Signatures “`bash # Self-signed CMS signature curl -X POST https://api.nutrient.io/build \ -H "Authorization: Bearer $NUTRIENT_API_KEY" \ -F "[email protected]" \ -F 'instructions={"parts":[{"file":"document.pdf"}],"actions":[{"type":"sign","signatureType":"cms"}]}' \ -o signed.pdf “` ### Fill PDF Forms “`bash curl -X POST https://api.nutrient.io/build \ -H "Authorization: Bearer $NUTRIENT_API_KEY" \ -F "[email protected]" \ -F 'instructions={"parts":[{"file":"form.pdf"}],"actions":[{"type":"fillForm","formFields":{"name":"Jane Smith","email":"[email protected]","date":"2026-02-06"}}]}' \ -o filled.pdf “` ## MCP Server (Alternative) For native tool integration, use the MCP server instead of curl: “`json { "mcpServers": { "nutrient-dws": { "command": "npx", "args": ["-y", "@nutrient-sdk/dws-mcp-server"], "env": { "NUTRIENT_DWS_API_KEY": "YOUR_API_KEY", "SANDBOX_PATH": "/path/to/working/directory" } } } } “` ## When to Use – Converting documents between formats (PDF, DOCX, XLSX, PPTX, HTML, images) – Extracting text, tables, or key-value pairs from PDFs – OCR on scanned documents or images – Redacting PII before sharing documents – Adding watermarks to drafts or confidential documents – Digitally signing contracts or agreements – Filling PDF forms programmatically ## Links – [API Playground](https://dashboard.nutrient.io/processor-api/playground/) – [Full API Docs](https://www.nutrient.io/guides/dws-processor/) – [npm MCP Server](https://www.npmjs.com/package/@nutrient-sdk/dws-mcp-server)