使用OpenAI和n8n从URL、文本和PDF进行AI内容摘要
高级
这是一个Miscellaneous, AI Summarization, Multimodal AI领域的自动化工作流，包含 47 个节点。主要使用 If, Set, Switch, Webhook, Function 等节点。 使用OpenAI GPT-4.1-mini从URL、文本和PDF汇总内容
前置要求
- •HTTP Webhook 端点（n8n 会自动生成）
- •可能需要目标 API 的认证凭证
- •OpenAI API Key
使用的节点 (47)
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
{
"id": "MGxb1ugenLCp7pGW",
"meta": {
"instanceId": "506e1eb999b7a8cf86103921b3e1b94e371534d9bae39d44754933678dc6697d",
"templateCredsSetupCompleted": true
},
"name": "使用 OpenAI 和 n8n 从 URL、文本和 PDF 进行 AI 内容摘要",
"tags": [
{
"id": "XnTVyrQY30pP85Ic",
"name": "Personal",
"createdAt": "2025-07-07T12:25:22.847Z",
"updatedAt": "2025-07-07T12:25:22.847Z"
}
],
"nodes": [
{
"id": "41fb7559-5588-4af7-a843-69f3a6ced08e",
"name": "初始触发器",
"type": "n8n-nodes-base.webhook",
"position": [
-1344,
1040
],
"webhookId": "7bd77710-f268-4b33-9101-8de427badd49",
"parameters": {
"path": "webhook-url",
"options": {
"rawBody": true
},
"responseMode": "responseNode"
},
"typeVersion": 2
},
{
"id": "bb2f4efb-accc-4e3d-9a1e-6fc4a8175a8f",
"name": "输入类型切换",
"type": "n8n-nodes-base.switch",
"position": [
-944,
1024
],
"parameters": {
"rules": {
"values": [
{
"outputKey": "url",
"conditions": {
"options": {
"version": 1,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "f2e4855a-2828-4ade-94ac-f06a9e795d54",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.input_type }}",
"rightValue": "={{ \"url\" }}"
}
]
},
"renameOutput": true
},
{
"outputKey": "text",
"conditions": {
"options": {
"version": 1,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"conditions": [
{
"id": "3a855f49-b559-4ef4-a94e-e7b2dfab3057",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.input_type }}",
"rightValue": "={{ \"text\" }}"
}
]
},
"renameOutput": true
},
{
"outputKey": "file",
"conditions": {
"options": {
"version": 1,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"conditions": [
{
"id": "0be44b08-67ca-4b5c-9ec1-24ca112fbd53",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.input_type }}",
"rightValue": "={{ \"file\" }}"
}
]
},
"renameOutput": true
}
]
},
"options": {}
},
"executeOnce": false,
"typeVersion": 3,
"alwaysOutputData": false
},
{
"id": "b38cc7cd-66f7-4d86-8de3-d3088679092c",
"name": "获取 URL 内容",
"type": "n8n-nodes-base.httpRequest",
"position": [
-288,
960
],
"parameters": {
"url": "={{ $json.url }}",
"options": {}
},
"typeVersion": 4.2
},
{
"id": "9455fbe7-a019-4f5d-8fe7-90f4e4aa19a2",
"name": "获取 PDF 文件",
"type": "n8n-nodes-base.httpRequest",
"position": [
-608,
1296
],
"parameters": {
"url": "={{ $json.file_content }}",
"options": {}
},
"typeVersion": 4.2
},
{
"id": "fc9e62a8-1eb2-4ba3-8a6e-9f49e9de1693",
"name": "从文件提取",
"type": "n8n-nodes-base.extractFromFile",
"position": [
-464,
1296
],
"parameters": {
"options": {},
"operation": "pdf"
},
"typeVersion": 1
},
{
"id": "0b01f016-3673-4401-83f5-aa2e31d2b80b",
"name": "检查提取的文本是否为空",
"type": "n8n-nodes-base.if",
"position": [
-320,
1296
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "88a7fc31-aac6-4e2f-899e-c250feef5f10",
"operator": {
"type": "string",
"operation": "empty"
},
"leftValue": "={{ $json.text }}",
"rightValue": ""
}
]
}
},
"typeVersion": 2.2
},
{
"id": "2c5321a0-4040-4ce1-8719-71098eb1f946",
"name": "映射语言代码",
"type": "n8n-nodes-base.function",
"position": [
16,
1344
],
"parameters": {
"functionCode": "const lang = $json.language?.toLowerCase() || 'english';\nlet code = 'eng';\nif (lang.includes('spanish')) code = 'spa';\nelse if (lang.includes('french')) code = 'fra';\nelse if (lang.includes('german')) code = 'ger';\nreturn { json: { language_code: code } };"
},
"typeVersion": 1
},
{
"id": "7727da47-5782-4887-9397-2dbd8c1b8e0e",
"name": "OCR.Space",
"type": "n8n-nodes-base.httpRequest",
"position": [
176,
1344
],
"parameters": {
"url": "https://api.ocr.space/parse/image",
"method": "POST",
"options": {},
"sendBody": true,
"contentType": "multipart-form-data",
"sendHeaders": true,
"bodyParameters": {
"parameters": [
{
"name": "language",
"value": "={{ $json.language_code }}"
},
{
"name": "isOverlayRequired",
"value": "false"
},
{
"name": "file",
"parameterType": "formBinaryData"
}
]
},
"headerParameters": {
"parameters": [
{
"name": "apikey",
"value": "YOUR_OCR_API_KEY"
}
]
}
},
"typeVersion": 4.2
},
{
"id": "71c47757-c891-4e29-b10e-55503c634bd6",
"name": "摘要-URL",
"type": "n8n-nodes-base.webhook",
"position": [
-1328,
1664
],
"webhookId": "7e7f989c-cbf9-4d21-87e3-d85f1bff6649",
"parameters": {
"path": "7e7f989c-cbf9-4d21-87e3-d85f1bff6649",
"options": {
"rawBody": true
},
"responseMode": "responseNode",
"authentication": "headerAuth"
},
"credentials": {
"httpHeaderAuth": {
"id": "Pqm05Oeq2YGSzRKN",
"name": "bearer auth for bubble test pages"
}
},
"typeVersion": 2
},
{
"id": "fb8c898f-a11b-4d10-a6ab-777e80cdf802",
"name": "摘要-文本",
"type": "n8n-nodes-base.webhook",
"position": [
-1312,
2192
],
"webhookId": "7fd2e79d-a18a-4b4f-a161-ca2bf060c891",
"parameters": {
"path": "7fd2e79d-a18a-4b4f-a161-ca2bf060c891",
"options": {
"rawBody": true
},
"responseMode": "responseNode",
"authentication": "headerAuth"
},
"credentials": {
"httpHeaderAuth": {
"id": "Pqm05Oeq2YGSzRKN",
"name": "bearer auth for bubble test pages"
}
},
"typeVersion": 2
},
{
"id": "5e56e512-7e58-4074-b984-7ea13ae48013",
"name": "摘要-文件",
"type": "n8n-nodes-base.webhook",
"position": [
-1312,
2800
],
"webhookId": "6e8000d4-56cb-457a-9dfe-5961a75b342f",
"parameters": {
"path": "6e8000d4-56cb-457a-9dfe-5961a75b342f",
"options": {
"rawBody": true
},
"responseMode": "responseNode",
"authentication": "headerAuth"
},
"credentials": {
"httpHeaderAuth": {
"id": "Pqm05Oeq2YGSzRKN",
"name": "bearer auth for bubble test pages"
}
},
"typeVersion": 2
},
{
"id": "3652a5dd-7273-42a7-a953-baadc53cde25",
"name": "便签",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1824,
2800
],
"parameters": {
"color": 5,
"width": 400,
"height": 96,
"content": "# 摘要 PDF 文件"
},
"typeVersion": 1
},
{
"id": "445ffe95-2006-4e44-82e9-912c6bd7cb4c",
"name": "便签1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1824,
2224
],
"parameters": {
"color": 5,
"width": 384,
"height": 80,
"content": "# 摘要文本"
},
"typeVersion": 1
},
{
"id": "62fe1311-19dd-4307-b740-b8534461f93e",
"name": "便签2",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1808,
1680
],
"parameters": {
"color": 5,
"width": 384,
"height": 80,
"content": "# 摘要 URL"
},
"typeVersion": 1
},
{
"id": "b59d5d2d-4610-4f46-ac77-156ff8bf93f6",
"name": "便签3",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1824,
1024
],
"parameters": {
"color": 5,
"width": 400,
"height": 80,
"content": "# 一体化摘要"
},
"typeVersion": 1
},
{
"id": "063a6c64-8fa5-4a3e-9695-44c2ea5cd894",
"name": "便签6",
"type": "n8n-nodes-base.stickyNote",
"position": [
-2752,
1008
],
"parameters": {
"width": 608,
"height": 1008,
"content": "# AI 内容摘要套件"
},
"typeVersion": 1
},
{
"id": "598ed657-da21-44c1-bd1f-1b4a2739636f",
"name": "解析输入参数",
"type": "n8n-nodes-base.set",
"position": [
-1120,
1040
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"name": "input_type",
"type": "string",
"value": "={{ $json.query.input_type || $json.body.input_type || 'url' }}"
},
{
"name": "url",
"type": "string",
"value": "={{ $json.query.url || $json.body.url || '' }}"
},
{
"name": "text_content",
"type": "string",
"value": "={{ $json.query.text_content || $json.body.text_content || '' }}"
},
{
"name": "summary_length",
"type": "string",
"value": "={{ $json.query.summary_length || $json.body.summary_length || 'standard' }}"
},
{
"name": "focus",
"type": "string",
"value": "={{ $json.query.focus || $json.body.focus || 'key_points' }}"
},
{
"name": "language",
"type": "string",
"value": "={{ $json.query.language || $json.body.language || 'english' }}"
},
{
"name": "file_content",
"type": "string",
"value": "={{ $json.query.file_content || $json.body.file_content || '' }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "8125ba61-90c6-4b36-baf3-94683db88ce8",
"name": "生成 AI 摘要（统一）",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
672,
1040
],
"parameters": {
"text": "=Summarize: {{ $json.raw_content }}",
"options": {
"systemMessage": "=Current date and time {{ $now }}\n\nYou are an expert content summarizer. \nCreate a {{ $('Parse Input Parameters').item.json.summary_length === 'brief' ? '**brief** (2-3 sentences)' : $('Parse Input Parameters').item.json.summary_length === 'detailed' ? '**detailed** (2-3 paragraphs)' : '**standard** (1 paragraph)' }} summary in markdown format.\n\n**Focus**: \n{{ $('Parse Input Parameters').item.json.focus === 'numbers_data' \n ? 'Extract key **numbers**, **percentages**, and quantitative data' \n : $('Parse Input Parameters').item.json.focus === 'conclusions' \n ? 'Highlight main **conclusions** and findings' \n : $('Parse Input Parameters').item.json.focus === 'action_items' \n ? 'List concrete **action items** and recommendations' \n : 'Capture essential **key points** and main themes' }}\n\n**Formatting Guidelines:**\n- Use **bold** for key terms and important information\n- Use *italics* for emphasis\n- Use bullet points (- ) for lists\n- Use ## for section headers when appropriate\n- Lead with the most important information\n- Include specific details that support main points\n- Ensure the summary is complete and stands alone\n\n**Language**: \n{{ $('Parse Input Parameters').item.json.language === 'spanish' \n ? 'Spanish' \n : $('Parse Input Parameters').item.json.language === 'french' \n ? 'French' \n : $('Parse Input Parameters').item.json.language === 'german' \n ? 'German' \n : 'English' }}\n\nContent: {{ $json.raw_content }}\n"
},
"promptType": "define"
},
"typeVersion": 2
},
{
"id": "0b02b948-24c2-495b-bef7-99901fdd50b6",
"name": "OpenAI GPT-4.1（统一）",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
752,
1264
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"id": "mvWns3smwtPV0N7O",
"name": "Dummy OpenAI"
}
},
"typeVersion": 1.2
},
{
"id": "0da9c053-faaf-4b2c-b089-30d23daab44f",
"name": "清理和格式化内容",
"type": "n8n-nodes-base.set",
"position": [
448,
1040
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "80a0f7dc-ee66-4499-ac84-1e21fca8e6c7",
"name": "raw_content",
"type": "string",
"value": "={{ $json.raw_content || $json.data || $json.text || $json.text_content || $json.ParsedResults?.[0]?.ParsedText || '' }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "4992bf8e-fb2a-4ef6-b7cc-c6943a256993",
"name": "构建最终输出",
"type": "n8n-nodes-base.set",
"position": [
1024,
1040
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"name": "content",
"type": "string",
"value": "={{ $json.output }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "dfd24b35-f6ee-4471-93d9-a1f202a85cce",
"name": "返回摘要响应",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
1248,
1040
],
"parameters": {
"options": {},
"respondWith": "text",
"responseBody": "={{ $json.content }}"
},
"typeVersion": 1.4
},
{
"id": "9d6d737e-4fe9-4fd4-a8d6-15b566de57f3",
"name": "提取 URL 参数",
"type": "n8n-nodes-base.set",
"position": [
-1104,
1664
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"name": "input_type",
"type": "string",
"value": "={{ $json.query.input_type || $json.body.input_type || 'url' }}"
},
{
"name": "url",
"type": "string",
"value": "={{ $json.query.url || $json.body.url || '' }}"
},
{
"name": "text_content",
"type": "string",
"value": "={{ $json.query.text_content || $json.body.text_content || '' }}"
},
{
"name": "summary_length",
"type": "string",
"value": "={{ $json.query.summary_length || $json.body.summary_length || 'standard' }}"
},
{
"name": "focus",
"type": "string",
"value": "={{ $json.query.focus || $json.body.focus || 'key_points' }}"
},
{
"name": "language",
"type": "string",
"value": "={{ $json.query.language || $json.body.language || 'english' }}"
},
{
"name": "file_content",
"type": "string",
"value": "={{ $json.query.file_content || $json.body.file_content || '' }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "7852e220-e77c-4b4a-a74b-110e0c733364",
"name": "抓取网页内容",
"type": "n8n-nodes-base.httpRequest",
"position": [
-880,
1664
],
"parameters": {
"url": "={{ $json.url }}",
"options": {}
},
"typeVersion": 4.2
},
{
"id": "3f933b84-8a3f-441b-8a17-412c63563d2d",
"name": "清理抓取的内容",
"type": "n8n-nodes-base.set",
"position": [
-656,
1664
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "80a0f7dc-ee66-4499-ac84-1e21fca8e6c7",
"name": "raw_content",
"type": "string",
"value": "={{ $json.raw_content || $json.data || $json.text || $json.text_content || $json.ParsedResults?.[0]?.ParsedText || '' }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "282c6c04-0ba1-47b8-a900-1c3416440710",
"name": "摘要 URL 内容",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
-432,
1664
],
"parameters": {
"text": "=Summarize: {{ $json.raw_content }}",
"options": {
"systemMessage": "=Current date and time {{ $now }}\n\nYou are an expert content summarizer. \nCreate a {{ $('Extract URL Parameters').item.json.summary_length === 'brief' ? '**brief** (2-3 sentences)' : $('Extract URL Parameters').item.json.summary_length === 'detailed' ? '**detailed** (2-3 paragraphs)' : '**standard** (1 paragraph)' }} summary in markdown format.\n\n**Focus**: \n{{ $('Extract URL Parameters').item.json.focus === 'numbers_data' \n ? 'Extract key **numbers**, **percentages**, and quantitative data' \n : $('Extract URL Parameters').item.json.focus === 'conclusions' \n ? 'Highlight main **conclusions** and findings' \n : $('Extract URL Parameters').item.json.focus === 'action_items' \n ? 'List concrete **action items** and recommendations' \n : 'Capture essential **key points** and main themes' }}\n\n**Formatting Guidelines:**\n- Use **bold** for key terms and important information\n- Use *italics* for emphasis\n- Use bullet points (- ) for lists\n- Use ## for section headers when appropriate\n- Lead with the most important information\n- Include specific details that support main points\n- Ensure the summary is complete and stands alone\n\n**Language**: \n{{ $('Extract URL Parameters').item.json.language === 'spanish' \n ? 'Spanish' \n : $('Extract URL Parameters').item.json.language === 'french' \n ? 'French' \n : $('Extract URL Parameters').item.json.language === 'german' \n ? 'German' \n : 'English' }}\n\nContent: {{ $json.raw_content }}\n"
},
"promptType": "define"
},
"typeVersion": 2
},
{
"id": "dcf23318-5a25-43d9-9ccd-a896cc89798e",
"name": "OpenAI GPT-4.1（URL）",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
-368,
1888
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"id": "mvWns3smwtPV0N7O",
"name": "Dummy OpenAI"
}
},
"typeVersion": 1.2
},
{
"id": "98fa70c1-9594-4d83-bb91-52148d80a450",
"name": "格式化 URL 摘要",
"type": "n8n-nodes-base.set",
"position": [
-80,
1664
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"name": "content",
"type": "string",
"value": "={{ $json.output }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "0d20d017-d4bd-48c4-b931-e30d5ecde720",
"name": "返回 URL 摘要",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
144,
1664
],
"parameters": {
"options": {},
"respondWith": "text",
"responseBody": "={{ $json.content }}"
},
"typeVersion": 1.4
},
{
"id": "2f0e7464-f607-4333-b34a-398ad045cf25",
"name": "提取文本参数",
"type": "n8n-nodes-base.set",
"position": [
-1088,
2192
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"name": "input_type",
"type": "string",
"value": "={{ $json.query.input_type || $json.body.input_type || 'url' }}"
},
{
"name": "url",
"type": "string",
"value": "={{ $json.query.url || $json.body.url || '' }}"
},
{
"name": "text_content",
"type": "string",
"value": "={{ $json.query.text_content || $json.body.text_content || '' }}"
},
{
"name": "summary_length",
"type": "string",
"value": "={{ $json.query.summary_length || $json.body.summary_length || 'standard' }}"
},
{
"name": "focus",
"type": "string",
"value": "={{ $json.query.focus || $json.body.focus || 'key_points' }}"
},
{
"name": "language",
"type": "string",
"value": "={{ $json.query.language || $json.body.language || 'english' }}"
},
{
"name": "file_content",
"type": "string",
"value": "={{ $json.query.file_content || $json.body.file_content || '' }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "ec5daf86-5837-4489-b967-ca01fd53259b",
"name": "处理原始文本输入",
"type": "n8n-nodes-base.set",
"position": [
-864,
2192
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "80a0f7dc-ee66-4499-ac84-1e21fca8e6c7",
"name": "raw_content",
"type": "string",
"value": "={{ $json.raw_content || $json.data || $json.text || $json.text_content || $json.ParsedResults?.[0]?.ParsedText || '' }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "4bb0543c-9611-47fa-9e88-46ab3a5e46d4",
"name": "摘要文本输入",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
-640,
2192
],
"parameters": {
"text": "=Summarize: {{ $json.raw_content }}",
"options": {
"systemMessage": "=Current date and time {{ $now }}\n\nYou are an expert content summarizer. \nCreate a {{ $('Extract Text Parameters').item.json.summary_length === 'brief' ? '**brief** (2-3 sentences)' : $('Extract Text Parameters').item.json.summary_length === 'detailed' ? '**detailed** (2-3 paragraphs)' : '**standard** (1 paragraph)' }} summary in markdown format.\n\n**Focus**: \n{{ $('Extract Text Parameters').item.json.focus === 'numbers_data' \n ? 'Extract key **numbers**, **percentages**, and quantitative data' \n : $('Extract Text Parameters').item.json.focus === 'conclusions' \n ? 'Highlight main **conclusions** and findings' \n : $('Extract Text Parameters').item.json.focus === 'action_items' \n ? 'List concrete **action items** and recommendations' \n : 'Capture essential **key points** and main themes' }}\n\n**Formatting Guidelines:**\n- Use **bold** for key terms and important information\n- Use *italics* for emphasis\n- Use bullet points (- ) for lists\n- Use ## for section headers when appropriate\n- Lead with the most important information\n- Include specific details that support main points\n- Ensure the summary is complete and stands alone\n\n**Language**: \n{{ $('Extract Text Parameters').item.json.language === 'spanish' \n ? 'Spanish' \n : $('Extract Text Parameters').item.json.language === 'french' \n ? 'French' \n : $('Extract Text Parameters').item.json.language === 'german' \n ? 'German' \n : 'English' }}\n\nContent: {{ $json.raw_content }}\n"
},
"promptType": "define"
},
"typeVersion": 2
},
{
"id": "144b8cd0-318a-4cd8-9d4c-e3416e59338f",
"name": "OpenAI GPT-4.1（文本）",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
-640,
2400
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"id": "mvWns3smwtPV0N7O",
"name": "Dummy OpenAI"
}
},
"typeVersion": 1.2
},
{
"id": "2072b47a-130d-417f-8bdf-77ee04f0c39b",
"name": "格式化文本摘要",
"type": "n8n-nodes-base.set",
"position": [
-288,
2192
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"name": "content",
"type": "string",
"value": "={{ $json.output }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "9024a142-c034-428e-92b6-3de102474dac",
"name": "返回文本摘要",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
-64,
2192
],
"parameters": {
"options": {},
"respondWith": "text",
"responseBody": "={{ $json.content }}"
},
"typeVersion": 1.4
},
{
"id": "37c4c9a2-04e6-49e1-a763-86a9cb5f19d2",
"name": "提取文件参数",
"type": "n8n-nodes-base.set",
"position": [
-1088,
2800
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"name": "input_type",
"type": "string",
"value": "={{ $json.query.input_type || $json.body.input_type || 'url' }}"
},
{
"name": "url",
"type": "string",
"value": "={{ $json.query.url || $json.body.url || '' }}"
},
{
"name": "text_content",
"type": "string",
"value": "={{ $json.query.text_content || $json.body.text_content || '' }}"
},
{
"name": "summary_length",
"type": "string",
"value": "={{ $json.query.summary_length || $json.body.summary_length || 'standard' }}"
},
{
"name": "focus",
"type": "string",
"value": "={{ $json.query.focus || $json.body.focus || 'key_points' }}"
},
{
"name": "language",
"type": "string",
"value": "={{ $json.query.language || $json.body.language || 'english' }}"
},
{
"name": "file_content",
"type": "string",
"value": "={{ $json.query.file_content || $json.body.file_content || '' }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "6ebe835e-2ef9-45ae-b984-bb21a873ab24",
"name": "下载 PDF 文件",
"type": "n8n-nodes-base.httpRequest",
"position": [
-864,
2800
],
"parameters": {
"url": "={{ $json.file_content }}",
"options": {}
},
"typeVersion": 4.2
},
{
"id": "49568f41-51f7-4006-84e6-e154ca1e35d4",
"name": "从 PDF 提取文本",
"type": "n8n-nodes-base.extractFromFile",
"position": [
-640,
2800
],
"parameters": {
"options": {},
"operation": "pdf"
},
"typeVersion": 1
},
{
"id": "db8f0fb5-f524-4489-8bb8-70677bbaa03b",
"name": "检查 PDF 文本提取",
"type": "n8n-nodes-base.if",
"position": [
-416,
2800
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "88a7fc31-aac6-4e2f-899e-c250feef5f10",
"operator": {
"type": "string",
"operation": "empty"
},
"leftValue": "={{ $json.text }}",
"rightValue": ""
}
]
}
},
"typeVersion": 2.2
},
{
"id": "714729b2-4a02-4685-b7db-4b0346928940",
"name": "映射 OCR 语言代码",
"type": "n8n-nodes-base.function",
"position": [
-192,
2624
],
"parameters": {
"functionCode": "const lang = $json.language?.toLowerCase() || 'english';\nlet code = 'eng';\nif (lang.includes('spanish')) code = 'spa';\nelse if (lang.includes('french')) code = 'fra';\nelse if (lang.includes('german')) code = 'ger';\nreturn { json: { language_code: code } };"
},
"typeVersion": 1
},
{
"id": "ffd527f9-3c97-4eef-9693-be431f79187c",
"name": "OCR 回退处理",
"type": "n8n-nodes-base.httpRequest",
"position": [
-32,
2624
],
"parameters": {
"url": "https://api.ocr.space/parse/image",
"method": "POST",
"options": {},
"sendBody": true,
"contentType": "multipart-form-data",
"sendHeaders": true,
"bodyParameters": {
"parameters": [
{
"name": "language",
"value": "={{ $json.language_code }}"
},
{
"name": "isOverlayRequired",
"value": "false"
},
{
"name": "file",
"parameterType": "formBinaryData"
}
]
},
"headerParameters": {
"parameters": [
{
"name": "apikey",
"value": "YOUR_OCR_API_KEY"
}
]
}
},
"typeVersion": 4.2
},
{
"id": "d0ebcb03-9151-4217-8ede-dfcf5d47ff22",
"name": "处理提取的文本",
"type": "n8n-nodes-base.set",
"position": [
160,
2816
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "80a0f7dc-ee66-4499-ac84-1e21fca8e6c7",
"name": "raw_content",
"type": "string",
"value": "={{ $json.raw_content || $json.data || $json.text || $json.text_content || $json.ParsedResults?.[0]?.ParsedText || '' }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "0818caf5-6479-4776-bd9f-d73962a09e29",
"name": "摘要 PDF 内容",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
480,
2800
],
"parameters": {
"text": "=Summarize: {{ $json.raw_content }}",
"options": {
"systemMessage": "=Current date and time {{ $now }}\n\nYou are an expert content summarizer. \nCreate a {{ $('Extract File Parameters').item.json.summary_length === 'brief' ? '**brief** (2-3 sentences)' : $('Extract File Parameters').item.json.summary_length === 'detailed' ? '**detailed** (2-3 paragraphs)' : '**standard** (1 paragraph)' }} summary in markdown format.\n\n**Focus**: \n{{ $('Extract File Parameters').item.json.focus === 'numbers_data' \n ? 'Extract key **numbers**, **percentages**, and quantitative data' \n : $('Extract File Parameters').item.json.focus === 'conclusions' \n ? 'Highlight main **conclusions** and findings' \n : $('Extract File Parameters').item.json.focus === 'action_items' \n ? 'List concrete **action items** and recommendations' \n : 'Capture essential **key points** and main themes' }}\n\n**Formatting Guidelines:**\n- Use **bold** for key terms and important information\n- Use *italics* for emphasis\n- Use bullet points (- ) for lists\n- Use ## for section headers when appropriate\n- Lead with the most important information\n- Include specific details that support main points\n- Ensure the summary is complete and stands alone\n\n**Language**: \n{{ $('Extract File Parameters').item.json.language === 'spanish' \n ? 'Spanish' \n : $('Extract File Parameters').item.json.language === 'french' \n ? 'French' \n : $('Extract File Parameters').item.json.language === 'german' \n ? 'German' \n : 'English' }}\n\nContent: {{ $json.raw_content }}\n"
},
"promptType": "define"
},
"typeVersion": 2
},
{
"id": "7120dedb-ac90-4aa3-9f3c-ba65aeb698ff",
"name": "OpenAI GPT-4.1（PDF）",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
560,
3024
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"id": "mvWns3smwtPV0N7O",
"name": "Dummy OpenAI"
}
},
"typeVersion": 1.2
},
{
"id": "c3463333-53ed-4a1e-9f57-363a8723409b",
"name": "格式化 PDF 摘要",
"type": "n8n-nodes-base.set",
"position": [
832,
2800
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"name": "content",
"type": "string",
"value": "={{ $json.output }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "6b02e945-6b55-4648-b3b3-7cde2d6d6724",
"name": "返回 PDF 摘要",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
1056,
2800
],
"parameters": {
"options": {},
"respondWith": "text",
"responseBody": "={{ $json.content }}"
},
"typeVersion": 1.4
},
{
"id": "a0bfcac9-cfd6-4822-b8a7-5bc0b50b1483",
"name": "便签4",
"type": "n8n-nodes-base.stickyNote",
"position": [
-2752,
2048
],
"parameters": {
"color": 3,
"width": 528,
"height": 80,
"content": "## 重要"
},
"typeVersion": 1
}
],
"active": false,
"pinData": {},
"settings": {
"callerPolicy": "workflowsFromSameOwner",
"errorWorkflow": "tKU8rgsN4cH2Mv9F",
"executionOrder": "v1"
},
"versionId": "783b71e8-de94-4085-9588-cfdbd63cd25c",
"connections": {
"OCR.Space": {
"main": [
[
{
"node": "Clean & Format Content",
"type": "main",
"index": 0
}
]
]
},
"summarize-url": {
"main": [
[
{
"node": "Extract URL Parameters",
"type": "main",
"index": 0
}
]
]
},
"Fetch PDF File": {
"main": [
[
{
"node": "Extract From File",
"type": "main",
"index": 0
}
]
]
},
"summarize-file": {
"main": [
[
{
"node": "Extract File Parameters",
"type": "main",
"index": 0
}
]
]
},
"summarize-text": {
"main": [
[
{
"node": "Extract Text Parameters",
"type": "main",
"index": 0
}
]
]
},
"Initial Trigger": {
"main": [
[
{
"node": "Parse Input Parameters",
"type": "main",
"index": 0
}
]
]
},
"Download PDF File": {
"main": [
[
{
"node": "Extract Text from PDF",
"type": "main",
"index": 0
}
]
]
},
"Extract From File": {
"main": [
[
{
"node": "Check If Extracted Text Empty",
"type": "main",
"index": 0
}
]
]
},
"Fetch URL Content": {
"main": [
[
{
"node": "Clean & Format Content",
"type": "main",
"index": 0
}
]
]
},
"Input Type Switch": {
"main": [
[
{
"node": "Fetch URL Content",
"type": "main",
"index": 0
}
],
[
{
"node": "Clean & Format Content",
"type": "main",
"index": 0
}
],
[
{
"node": "Fetch PDF File",
"type": "main",
"index": 0
}
]
]
},
"Map Language Code": {
"main": [
[
{
"node": "OCR.Space",
"type": "main",
"index": 0
}
]
]
},
"Format PDF Summary": {
"main": [
[
{
"node": "Return PDF Summary",
"type": "main",
"index": 0
}
]
]
},
"Format URL Summary": {
"main": [
[
{
"node": "Return URL Summary",
"type": "main",
"index": 0
}
]
]
},
"Format Text Summary": {
"main": [
[
{
"node": "Return Text Summary",
"type": "main",
"index": 0
}
]
]
},
"OpenAI GPT-4.1 (PDF)": {
"ai_languageModel": [
[
{
"node": "Summarize PDF Content",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"OpenAI GPT-4.1 (URL)": {
"ai_languageModel": [
[
{
"node": "Summarize URL Content",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Summarize Text Input": {
"main": [
[
{
"node": "Format Text Summary",
"type": "main",
"index": 0
}
]
]
},
"Clean Scraped Content": {
"main": [
[
{
"node": "Summarize URL Content",
"type": "main",
"index": 0
}
]
]
},
"Extract Text from PDF": {
"main": [
[
{
"node": "Check PDF Text Extraction",
"type": "main",
"index": 0
}
]
]
},
"Map OCR Language Code": {
"main": [
[
{
"node": "OCR Fallback Processing",
"type": "main",
"index": 0
}
]
]
},
"OpenAI GPT-4.1 (Text)": {
"ai_languageModel": [
[
{
"node": "Summarize Text Input",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Summarize PDF Content": {
"main": [
[
{
"node": "Format PDF Summary",
"type": "main",
"index": 0
}
]
]
},
"Summarize URL Content": {
"main": [
[
{
"node": "Format URL Summary",
"type": "main",
"index": 0
}
]
]
},
"Clean & Format Content": {
"main": [
[
{
"node": "Generate AI Summary (Unified)",
"type": "main",
"index": 0
}
]
]
},
"Extract URL Parameters": {
"main": [
[
{
"node": "Scrape Web Page Content",
"type": "main",
"index": 0
}
]
]
},
"Parse Input Parameters": {
"main": [
[
{
"node": "Input Type Switch",
"type": "main",
"index": 0
}
]
]
},
"Process Extracted Text": {
"main": [
[
{
"node": "Summarize PDF Content",
"type": "main",
"index": 0
}
]
]
},
"Process Raw Text Input": {
"main": [
[
{
"node": "Summarize Text Input",
"type": "main",
"index": 0
}
]
]
},
"Structure Final Output": {
"main": [
[
{
"node": "Return Summary Response",
"type": "main",
"index": 0
}
]
]
},
"Extract File Parameters": {
"main": [
[
{
"node": "Download PDF File",
"type": "main",
"index": 0
}
]
]
},
"Extract Text Parameters": {
"main": [
[
{
"node": "Process Raw Text Input",
"type": "main",
"index": 0
}
]
]
},
"OCR Fallback Processing": {
"main": [
[
{
"node": "Process Extracted Text",
"type": "main",
"index": 0
}
]
]
},
"Scrape Web Page Content": {
"main": [
[
{
"node": "Clean Scraped Content",
"type": "main",
"index": 0
}
]
]
},
"OpenAI GPT-4.1 (Unified)": {
"ai_languageModel": [
[
{
"node": "Generate AI Summary (Unified)",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Check PDF Text Extraction": {
"main": [
[
{
"node": "Map OCR Language Code",
"type": "main",
"index": 0
}
],
[
{
"node": "Process Extracted Text",
"type": "main",
"index": 0
}
]
]
},
"Check If Extracted Text Empty": {
"main": [
[
{
"node": "Map Language Code",
"type": "main",
"index": 0
}
],
[
{
"node": "Clean & Format Content",
"type": "main",
"index": 0
}
]
]
},
"Generate AI Summary (Unified)": {
"main": [
[
{
"node": "Structure Final Output",
"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 - 杂项, AI 摘要总结, 多模态 AI
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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