skills/xu-xiang/everything-claude-code-zh/nutrient-document-processing

nutrient-document-processing

SKILL.md

Nutrient 文档处理(Nutrient Document Processing)

使用 Nutrient DWS Processor API 处理文档。转换格式、提取文本和表格、对扫描文档进行 OCR 光学字符识别、脱敏个人身份信息(PII)、添加水印、进行数字签名以及填充 PDF 表单。

设置(Setup)

nutrient.io 获取免费 API 密钥。

export NUTRIENT_API_KEY="pdf_live_..."

所有请求均以 multipart POST 形式发送至 https://api.nutrient.io/build,并包含一个 instructions JSON 字段。

操作(Operations)

转换文档(Convert Documents)

# DOCX 转 PDF
curl -X POST https://api.nutrient.io/build \
  -H "Authorization: Bearer $NUTRIENT_API_KEY" \
  -F "document.docx=@document.docx" \
  -F 'instructions={"parts":[{"file":"document.docx"}]}' \
  -o output.pdf

# PDF 转 DOCX
curl -X POST https://api.nutrient.io/build \
  -H "Authorization: Bearer $NUTRIENT_API_KEY" \
  -F "document.pdf=@document.pdf" \
  -F 'instructions={"parts":[{"file":"document.pdf"}],"output":{"type":"docx"}}' \
  -o output.docx

# HTML 转 PDF
curl -X POST https://api.nutrient.io/build \
  -H "Authorization: Bearer $NUTRIENT_API_KEY" \
  -F "index.html=@index.html" \
  -F 'instructions={"parts":[{"html":"index.html"}]}' \
  -o output.pdf

支持的输入格式:PDF, DOCX, XLSX, PPTX, DOC, XLS, PPT, PPS, PPSX, ODT, RTF, HTML, JPG, PNG, TIFF, HEIC, GIF, WebP, SVG, TGA, EPS。

提取文本和数据(Extract Text and Data)

# 提取纯文本
curl -X POST https://api.nutrient.io/build \
  -H "Authorization: Bearer $NUTRIENT_API_KEY" \
  -F "document.pdf=@document.pdf" \
  -F 'instructions={"parts":[{"file":"document.pdf"}],"output":{"type":"text"}}' \
  -o output.txt

# 将表格提取为 Excel
curl -X POST https://api.nutrient.io/build \
  -H "Authorization: Bearer $NUTRIENT_API_KEY" \
  -F "document.pdf=@document.pdf" \
  -F 'instructions={"parts":[{"file":"document.pdf"}],"output":{"type":"xlsx"}}' \
  -o tables.xlsx

OCR 扫描文档(OCR Scanned Documents)

# OCR 转为可搜索的 PDF(支持 100 多种语言)
curl -X POST https://api.nutrient.io/build \
  -H "Authorization: Bearer $NUTRIENT_API_KEY" \
  -F "scanned.pdf=@scanned.pdf" \
  -F 'instructions={"parts":[{"file":"scanned.pdf"}],"actions":[{"type":"ocr","language":"english"}]}' \
  -o searchable.pdf

语言:支持 100 多种语言,通过 ISO 639-2 代码指定(例如 eng, deu, fra, spa, jpn, kor, chi_sim, chi_tra, ara, hin, rus)。也可以使用完整的语言名称,如 englishgerman。请参阅完整的 OCR 语言对照表以获取所有支持的代码。

脱敏敏感信息(Redact Sensitive Information)

# 基于模式(SSN, 电子邮件)
curl -X POST https://api.nutrient.io/build \
  -H "Authorization: Bearer $NUTRIENT_API_KEY" \
  -F "document.pdf=@document.pdf" \
  -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

# 基于正则表达式
curl -X POST https://api.nutrient.io/build \
  -H "Authorization: Bearer $NUTRIENT_API_KEY" \
  -F "document.pdf=@document.pdf" \
  -F 'instructions={"parts":[{"file":"document.pdf"}],"actions":[{"type":"redaction","strategy":"regex","strategyOptions":{"regex":"\\b[A-Z]{2}\\d{6}\\b"}}]}' \
  -o redacted.pdf

预设(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

添加水印(Add Watermarks)

curl -X POST https://api.nutrient.io/build \
  -H "Authorization: Bearer $NUTRIENT_API_KEY" \
  -F "document.pdf=@document.pdf" \
  -F 'instructions={"parts":[{"file":"document.pdf"}],"actions":[{"type":"watermark","text":"CONFIDENTIAL","fontSize":72,"opacity":0.3,"rotation":-45}]}' \
  -o watermarked.pdf

数字签名(Digital Signatures)

# 自签名 CMS 签名
curl -X POST https://api.nutrient.io/build \
  -H "Authorization: Bearer $NUTRIENT_API_KEY" \
  -F "document.pdf=@document.pdf" \
  -F 'instructions={"parts":[{"file":"document.pdf"}],"actions":[{"type":"sign","signatureType":"cms"}]}' \
  -o signed.pdf

填充 PDF 表单(Fill PDF Forms)

curl -X POST https://api.nutrient.io/build \
  -H "Authorization: Bearer $NUTRIENT_API_KEY" \
  -F "form.pdf=@form.pdf" \
  -F 'instructions={"parts":[{"file":"form.pdf"}],"actions":[{"type":"fillForm","formFields":{"name":"Jane Smith","email":"jane@example.com","date":"2026-02-06"}}]}' \
  -o filled.pdf

MCP 服务器(替代方案)

对于原生工具集成,可以使用 MCP 服务器代替 curl:

{
  "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"
      }
    }
  }
}

何时使用

  • 在不同格式之间转换文档(PDF, DOCX, XLSX, PPTX, HTML, 图像)
  • 从 PDF 中提取文本、表格或键值对
  • 对扫描文档或图像进行 OCR
  • 在共享文档前脱敏个人身份信息(PII)
  • 为草案或机密文档添加水印
  • 为合同或协议进行数字签名
  • 以编程方式填充 PDF 表单

链接(Links)

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