支持Webhook的AI PDF分析器
高级
这是一个自动化工作流，包含 16 个节点。主要使用 If, Set, Code, Crypto, Webhook 等节点。 支持Webhook的AI PDF分析器
前置要求
- •HTTP Webhook 端点（n8n 会自动生成）
- •OpenAI API Key
使用的节点 (16)
分类
-
工作流预览
可视化展示节点连接关系，支持缩放和平移
导出工作流
复制以下 JSON 配置到 n8n 导入，即可使用此工作流
{
"meta": {
"instanceId": "ff412ab2a6cd55af5dedbbab9b8e43f0f3a0cb16fb794fa8d3837f957b771ad2",
"templateCredsSetupCompleted": true
},
"nodes": [
{
"id": "505f25b4-eaa7-4d42-98d9-2154d7d4cc81",
"name": "文件引用",
"type": "n8n-nodes-base.noOp",
"position": [
-1360,
280
],
"parameters": {},
"typeVersion": 1
},
{
"id": "59721669-a3a9-48ab-8cb0-29ea0af84f6d",
"name": "成功 1",
"type": "n8n-nodes-base.respondToWebhook",
"onError": "continueRegularOutput",
"position": [
620,
-20
],
"parameters": {
"options": {
"responseCode": 200,
"responseHeaders": {
"entries": [
{
"name": "Content-Type",
"value": "application/json"
}
]
}
},
"respondWith": "json",
"responseBody": "={{\n{\n \"error\": null,\n \"meta\": {\n \"hash\": $('Get File Hash').first().json.data,\n },\n \"result\": $json.response\n}\n}}"
},
"typeVersion": 1.1
},
{
"id": "16479572-c3a6-4127-9bf2-db7380bd734c",
"name": "是有效文件吗？",
"type": "n8n-nodes-base.if",
"position": [
-660,
280
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "a277fc5c-6873-49d5-b67b-39df0efc8a61",
"operator": {
"type": "number",
"operation": "lte"
},
"leftValue": "={{ $('Get Filesize').item.json.filesize_in_bytes }}",
"rightValue": "={{ 10000000 }}"
},
{
"id": "d908d5a9-3550-45ce-8645-19c08d3e5982",
"operator": {
"type": "number",
"operation": "lte"
},
"leftValue": "={{ $json.numpages }}",
"rightValue": 20
}
]
}
},
"typeVersion": 2.2
},
{
"id": "d35868fb-2a0b-4f07-a942-216a8d226b46",
"name": "获取文件大小",
"type": "n8n-nodes-base.code",
"position": [
-980,
280
],
"parameters": {
"mode": "runOnceForEachItem",
"jsCode": "function convertToBytes(size) {\n const units = {\n b: 1,\n bytes: 1,\n kb: 1024,\n mb: 1024 * 1024,\n gb: 1024 * 1024 * 1024,\n };\n\n // Extract the number and unit using regex\n const regex = /([\\d.]+)\\s*(bytes|b|kb|mb|gb)/i;\n const match = size.match(regex);\n\n if (!match) {\n throw new Error(`Invalid size format: \"${size}\"`);\n }\n\n const value = parseFloat(match[1]);\n const unit = match[2].toLowerCase();\n\n // Calculate the size in bytes\n const factor = units[unit];\n if (!factor) {\n throw new Error(`Unsupported unit: \"${unit}\"`);\n }\n\n return Math.round(value * factor);\n}\n\nconst data = $('File Ref').first().binary.data;\n\nreturn {\n json: { filesize_in_bytes: convertToBytes(data.fileSize) },\n binary: { data }\n}"
},
"typeVersion": 2
},
{
"id": "87e6b82c-4099-4435-b47f-647ae0b97d39",
"name": "从文件提取",
"type": "n8n-nodes-base.extractFromFile",
"position": [
-820,
280
],
"parameters": {
"options": {},
"operation": "pdf"
},
"typeVersion": 1
},
{
"id": "e4f623cd-418b-49f1-bc1b-2e804a089617",
"name": "便签1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1040,
140
],
"parameters": {
"color": 7,
"width": 720,
"height": 480,
"content": "### 2. 验证 PDF 文件"
},
"typeVersion": 1
},
{
"id": "ece12347-4205-447a-85cd-298bfa7595e0",
"name": "便签2",
"type": "n8n-nodes-base.stickyNote",
"position": [
-280,
-120
],
"parameters": {
"color": 7,
"width": 600,
"height": 480,
"content": "### 3. 使用 Gemini API 进行文档解析"
},
"typeVersion": 1
},
{
"id": "c7197f2f-7ac9-4c97-bd58-859c1d0950f0",
"name": "便签4",
"type": "n8n-nodes-base.stickyNote",
"position": [
340,
-120
],
"parameters": {
"color": 7,
"width": 480,
"height": 280,
"content": "### 5. 格式化响应"
},
"typeVersion": 1
},
{
"id": "9ef4b032-de21-48bd-ad3a-fb1cf391fe77",
"name": "信息提取器",
"type": "@n8n/n8n-nodes-langchain.informationExtractor",
"onError": "continueErrorOutput",
"position": [
-180,
40
],
"parameters": {
"text": "=Document as follows:\n{{ $json.text }}",
"options": {
"systemPromptTemplate": "You are a note-taking agent helping the user to summarise this PDF in note form. Breakdown the document into distinct topics and provide a 3 paragraph summary of each topic discussed in the document."
},
"schemaType": "manual",
"inputSchema": "{\n \"type\": \"array\",\n \"items\": {\n \"type\": \"object\",\n \"properties\": {\n \"topic\": { \"type\": \"string\" },\n \"insights\": {\n \"type\": \"array\",\n \"items\": {\n \"type\": \"object\",\n \"properties\": {\n \"title\": { \"type\": \"string\" },\n \"body\": { \"type\": \"string\" }\n }\n }\n }\n }\n }\n}"
},
"typeVersion": 1
},
{
"id": "4d9f3117-972b-417b-9dee-4098bbd71102",
"name": "格式化响应",
"type": "n8n-nodes-base.set",
"position": [
440,
-20
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "10335d9e-7e0a-4ee1-a275-71d2f75b6bba",
"name": "response",
"type": "string",
"value": "={{\n$json.output.map(item => {\nreturn\n`## ${item.topic}\n${item.insights.map(insight =>\n`- **${insight.title}**: ${insight.body}`\n).join('\\n')}\n`;\n}).join('\\n\\n');\n}}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "db32ecb9-79d0-45ee-aced-05aca99c9f27",
"name": "400 错误",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
-480,
440
],
"parameters": {
"options": {
"responseCode": 400
},
"respondWith": "json",
"responseBody": "{\n \"error\": \"Unable to parse document. Please ensure file is less than 10mb with maximum of 20 pages.\",\n \"result\": []\n}"
},
"typeVersion": 1.1
},
{
"id": "61d6e5e7-dcd7-4cdc-82be-8fec58f26e5a",
"name": "500 错误",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
140,
120
],
"parameters": {
"options": {
"responseCode": 500
},
"respondWith": "json",
"responseBody": "{\n \"error\": \"Unable to parse document. An unknown error occurred.\",\n \"result\": []\n}"
},
"typeVersion": 1.1
},
{
"id": "732d7d7b-f7f5-4342-93b7-e8b49d381dfb",
"name": "获取文件哈希",
"type": "n8n-nodes-base.crypto",
"disabled": true,
"position": [
-1180,
280
],
"parameters": {
"value": "={{ $('File Ref').first().binary }}"
},
"typeVersion": 1
},
{
"id": "e6221a49-d4d8-4aa5-bbd8-69b885ff7254",
"name": "POST /ai_pdf_summariser",
"type": "n8n-nodes-base.webhook",
"position": [
-1520,
280
],
"webhookId": "a452fbcb-c7c4-4c0b-b435-b1829d411e7a",
"parameters": {
"path": "ai_pdf_summariser",
"options": {
"ignoreBots": false
},
"httpMethod": "POST",
"responseMode": "responseNode"
},
"typeVersion": 2
},
{
"id": "3d605049-571f-45d2-b1ba-914f0c9d68f4",
"name": "便签9",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1680,
140
],
"parameters": {
"width": 280,
"height": 100,
"content": "### POST /ai_pdf_summariser"
},
"typeVersion": 1
},
{
"id": "d79d5cf3-2f7c-459c-9977-9e0a77ed8d7b",
"name": "OpenAI 聊天模型1",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
-100,
220
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"id": "pY9tCO8MgTcBYqdJ",
"name": "OpenAi account Tutorial from docs"
}
},
"typeVersion": 1.2
}
],
"pinData": {},
"connections": {
"File Ref": {
"main": [
[
{
"node": "Get File Hash",
"type": "main",
"index": 0
}
]
]
},
"Get Filesize": {
"main": [
[
{
"node": "Extract from File",
"type": "main",
"index": 0
}
]
]
},
"Get File Hash": {
"main": [
[
{
"node": "Get Filesize",
"type": "main",
"index": 0
}
]
]
},
"Is Valid File?": {
"main": [
[
{
"node": "Information Extractor",
"type": "main",
"index": 0
}
],
[
{
"node": "400 Error",
"type": "main",
"index": 0
}
]
]
},
"Format Response": {
"main": [
[
{
"node": "Success1",
"type": "main",
"index": 0
}
]
]
},
"Extract from File": {
"main": [
[
{
"node": "Is Valid File?",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model1": {
"ai_languageModel": [
[
{
"node": "Information Extractor",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Information Extractor": {
"main": [
[
{
"node": "Format Response",
"type": "main",
"index": 0
}
],
[
{
"node": "500 Error",
"type": "main",
"index": 0
}
]
]
},
"POST /ai_pdf_summariser": {
"main": [
[
{
"node": "File Ref",
"type": "main",
"index": 0
}
]
]
}
}
}常见问题
如何使用这个工作流？
复制上方的 JSON 配置代码，在您的 n8n 实例中创建新工作流并选择「从 JSON 导入」，粘贴配置后根据需要修改凭证设置即可。
这个工作流适合什么场景？
高级
需要付费吗？
本工作流完全免费，您可以直接导入使用。但请注意，工作流中使用的第三方服务（如 OpenAI API）可能需要您自行付费。
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工作流信息
难度等级
高级
节点数量16
分类-
节点类型11
作者
n8n Team
@n8n-teamMeet the official n8n team. We specialize in building workflows that transform intricate tasks into seamless operations.
外部链接
在 n8n.io 查看 →
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