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n8n 中的免费 PDF 生成器 – 无需外部库或付费服务

高级

这是一个Document Extraction, Multimodal AI领域的自动化工作流，包含 20 个节点。主要使用 Set, Slack, GoogleDrive, HttpRequest, ManualTrigger 等节点。 使用 OpenAI、Google Docs 和 Slack 生成并分享专业 PDF

前置要求
  • •Slack Bot Token 或 Webhook URL
  • •Google Drive API 凭证
  • •可能需要目标 API 的认证凭证
  • •OpenAI API Key

使用的节点 (20)

Set
Slack
StickyNote
GoogleDrive
HttpRequest
ManualTrigger
Agent
LmChatOpenAi

分类

文档提取
多模态 AI
工作流预览
可视化展示节点连接关系，支持缩放和平移
React Flow
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": "BY9w2cNMUAvBWpJ7",
  "meta": {
    "instanceId": "4a2e6764ba7a6bc9890d9225f4b21d570ce88fc9bd57549c89057fcee58fed0f",
    "templateCredsSetupCompleted": true
  },
  "name": "n8n 中的免费 PDF 生成器 – 无需外部库或付费服务",
  "tags": [],
  "nodes": [
    {
      "id": "1a0c48b7-71a1-43ea-84f4-bc9d471f3d94",
      "name": "OpenAI 聊天模型",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        176,
        144
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4.1",
          "cachedResultName": "gpt-4.1"
        },
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "PPSwAKeLQYgAPobT",
          "name": "OpenAi account"
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "9c32fc19-37c9-4a40-90b1-a00ac76923d9",
      "name": "归档 PDF 文件",
      "type": "n8n-nodes-base.googleDrive",
      "position": [
        1152,
        -80
      ],
      "parameters": {
        "name": "={{ $json.name }}.pdf",
        "driveId": {
          "__rl": true,
          "mode": "list",
          "value": "My Drive"
        },
        "options": {},
        "folderId": {
          "__rl": true,
          "mode": "list",
          "value": "1IPcko8bzogO3W4mxhrW2Q017QA0Lc5MI",
          "cachedResultUrl": "https://drive.google.com/drive/folders/1IPcko8bzogO3W4mxhrW2Q017QA0Lc5MI",
          "cachedResultName": "SmartSales"
        }
      },
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "fC471es5gk5Mm900",
          "name": "Google Drive account"
        }
      },
      "typeVersion": 3
    },
    {
      "id": "7e0a5a61-9004-4392-b1a5-786fd40cfcd9",
      "name": "下载附件文件",
      "type": "n8n-nodes-base.googleDrive",
      "position": [
        1376,
        -80
      ],
      "parameters": {
        "fileId": {
          "__rl": true,
          "mode": "id",
          "value": "={{ $json.id }}"
        },
        "options": {},
        "operation": "download"
      },
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "fC471es5gk5Mm900",
          "name": "Google Drive account"
        }
      },
      "typeVersion": 3
    },
    {
      "id": "bcb58059-951e-4e60-a925-595e4d9a7829",
      "name": "创建文档文件",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        704,
        -80
      ],
      "parameters": {
        "url": "https://www.googleapis.com/upload/drive/v3/files?uploadType=multipart&supportsAllDrives=true",
        "body": "=--foo_bar_baz\nContent-Type: application/json; charset=UTF-8\n\n{\n  \"name\": \"{{ $json.Today }}\",\n  \"mimeType\": \"application/vnd.google-apps.document\",\n  \"parents\": [\"{{ $json['Drive Folder ID'] }}\"]\n}\n\n--foo_bar_baz\nContent-Type: text/markdown; charset=UTF-8\n\n{{ $('Generate sample markdown document').item.json.output }}\n\n--foo_bar_baz--",
        "method": "POST",
        "options": {},
        "sendBody": true,
        "sendQuery": true,
        "contentType": "raw",
        "sendHeaders": true,
        "authentication": "predefinedCredentialType",
        "rawContentType": "multipart/related; boundary=foo_bar_baz",
        "queryParameters": {
          "parameters": [
            {
              "name": "uploadType",
              "value": "multipart"
            },
            {
              "name": "supportsAllDrives",
              "value": "true"
            }
          ]
        },
        "headerParameters": {
          "parameters": [
            {
              "name": "boundary",
              "value": "foo_bar_baz"
            }
          ]
        },
        "nodeCredentialType": "googleDriveOAuth2Api"
      },
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "fC471es5gk5Mm900",
          "name": "Google Drive account"
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "e540e238-4bde-4dae-ac86-ac88764e7dc9",
      "name": "将文档转换为 PDF",
      "type": "n8n-nodes-base.googleDrive",
      "position": [
        928,
        -80
      ],
      "parameters": {
        "fileId": {
          "__rl": true,
          "mode": "id",
          "value": "={{ $json.id }}"
        },
        "options": {
          "googleFileConversion": {
            "conversion": {
              "docsToFormat": "application/pdf"
            }
          }
        },
        "operation": "download"
      },
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "fC471es5gk5Mm900",
          "name": "Google Drive account"
        }
      },
      "typeVersion": 3
    },
    {
      "id": "e214322b-302f-4c54-906c-75e1e6c93ba9",
      "name": "当点击“执行工作流”时",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -144,
        -80
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "a36ca7db-6c6d-491a-8cd0-243916a2cd3a",
      "name": "发送消息",
      "type": "n8n-nodes-base.slack",
      "position": [
        1600,
        -80
      ],
      "webhookId": "524619ce-d662-428d-bb56-ea97e5366dec",
      "parameters": {
        "options": {
          "fileName": "={{ $json.name }}",
          "channelId": "C097VAKKPUP",
          "initialComment": "Formatted PDF file from markdown"
        },
        "resource": "file",
        "authentication": "oAuth2"
      },
      "credentials": {
        "slackOAuth2Api": {
          "id": "4JSKt9sIRV1KGswQ",
          "name": "Slack account"
        }
      },
      "typeVersion": 2.3
    },
    {
      "id": "d1253bec-da2d-4530-baeb-6e5adc989a1c",
      "name": "生成示例 Markdown 文档",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        80,
        -80
      ],
      "parameters": {
        "text": "=You are a Markdown expert. Write a single sample document in Markdown format that demonstrates all major Markdown syntax.\nThe document should be well-organized and easy to follow, with each section labeled clearly.\n\nInclude examples for:\n\t1.\tHeadings (H1 to H6)\n\t2.\tParagraphs and line breaks\n\t3.\tBold, italic, bold italic, and strikethrough\n\t4.\tBlockquotes (single and nested)\n\t5.\tLists: unordered, ordered, nested lists, and task lists\n\t6.\tLinks: inline, reference-style, and automatic links\n\t7.\tImages: inline and reference-style\n\t8.\tCode: inline code, fenced code blocks with language highlighting\n\t9.\tTables with alignment options\n\t10.\tHorizontal rules\n\t11.\tFootnotes\n\t12.\tEscaping special characters\n\t13.\tEmoji usage (if supported)\n\t14.\tHTML elements inside Markdown (example: <details> or <sup>)\n\nAt the top, add a short title and description of the document.\nUse clear section headings and short explanations before each example.\nMake sure the output is entirely valid Markdown so it can be rendered directly without edits.\n\nOutput only the Markdown content, nothing else.",
        "options": {
          "systemMessage": ""
        },
        "promptType": "define"
      },
      "typeVersion": 2
    },
    {
      "id": "17545deb-4c68-4038-abd7-1c7e9de0b99f",
      "name": "配置 Google Drive 文件夹",
      "type": "n8n-nodes-base.set",
      "position": [
        480,
        -80
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "1ff0b9a4-7d60-44ec-b047-e49252f1ace9",
              "name": "Drive Folder ID",
              "type": "string",
              "value": "1IPcko8bzogO3W4mxhrW2Q017QA0Lc5MI"
            },
            {
              "id": "d64a1ac4-15db-4c84-a1db-fbd6b48084f5",
              "name": "Today",
              "type": "string",
              "value": "={{ $now.format(\"ddMMyyyyhhmmss\") }}"
            }
          ]
        }
      },
      "typeVersion": 3.4
    },
    {
      "id": "4bf9bfbc-3791-4c28-b32a-085f1864e726",
      "name": "便签",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -1216,
        -720
      ],
      "parameters": {
        "width": 912,
        "height": 1472,
        "content": "# n8n 中的免费 PDF 生成器 – 无需外部库或付费服务"
      },
      "typeVersion": 1
    },
    {
      "id": "184cfef9-d92a-462d-9e8b-b6034eaa5ff9",
      "name": "便签1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -272,
        -208
      ],
      "parameters": {
        "color": 4,
        "width": 288,
        "height": 480,
        "content": "**触发工作流**"
      },
      "typeVersion": 1
    },
    {
      "id": "49d2e923-1356-4671-96e4-a6a39893e291",
      "name": "便签2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        48,
        -208
      ],
      "parameters": {
        "color": 4,
        "width": 352,
        "height": 480,
        "content": "**使用 AI 生成 Markdown 内容**"
      },
      "typeVersion": 1
    },
    {
      "id": "350d767b-0ed5-4cbd-9f86-f5ea4044fbff",
      "name": "便签3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        432,
        -208
      ],
      "parameters": {
        "color": 4,
        "width": 432,
        "height": 480,
        "content": "**从 Markdown 创建 Google Doc**"
      },
      "typeVersion": 1
    },
    {
      "id": "2c5fc8ea-4c52-4b4b-8e13-c2ae0041aa1f",
      "name": "便签4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        896,
        -208
      ],
      "parameters": {
        "color": 4,
        "width": 384,
        "height": 480,
        "content": "**导出并归档为 PDF**"
      },
      "typeVersion": 1
    },
    {
      "id": "c3e95369-34a3-4f11-9204-78ee6b6e2217",
      "name": "便签5",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1328,
        -208
      ],
      "parameters": {
        "color": 4,
        "width": 400,
        "height": 480,
        "content": "**通过 Slack 共享 PDF**"
      },
      "typeVersion": 1
    },
    {
      "id": "9bc94ec2-4bce-4ed4-9afd-9270d2e46052",
      "name": "## 试试看！",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1808,
        -240
      ],
      "parameters": {
        "width": 768,
        "height": 528,
        "content": "![替代文本](https://wisestackai.s3.ap-southeast-1.amazonaws.com/pdf-1.png \"可选标题文本\")"
      },
      "typeVersion": 1
    },
    {
      "id": "bf330105-df5e-4956-858a-b29d26e651d4",
      "name": "GET 模型",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -240,
        352
      ],
      "parameters": {
        "width": 768,
        "height": 992,
        "content": "![替代文本](https://wisestackai.s3.ap-southeast-1.amazonaws.com/pdf-2.png \"可选标题文本\")"
      },
      "typeVersion": 1
    },
    {
      "id": "12aea9ee-032f-4522-980b-69bee5d89913",
      "name": "## 1. 创建新的自定义 OpenAI 凭据",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        544,
        352
      ],
      "parameters": {
        "width": 768,
        "height": 992,
        "content": "![替代文本](https://wisestackai.s3.ap-southeast-1.amazonaws.com/pdf-3.png \"可选标题文本\")"
      },
      "typeVersion": 1
    },
    {
      "id": "e754721c-dce2-4d19-a47d-b146e6bba331",
      "name": "便签10",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1328,
        352
      ],
      "parameters": {
        "width": 768,
        "height": 992,
        "content": "![替代文本](https://wisestackai.s3.ap-southeast-1.amazonaws.com/pdf-4.png \"可选标题文本\")"
      },
      "typeVersion": 1
    },
    {
      "id": "53e3dcc8-1e6e-4cb4-9f44-5fa49d731a9a",
      "name": "便签 11",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        2112,
        352
      ],
      "parameters": {
        "width": 768,
        "height": 992,
        "content": "![替代文本](https://wisestackai.s3.ap-southeast-1.amazonaws.com/pdf-5.png \"可选标题文本\")"
      },
      "typeVersion": 1
    }
  ],
  "active": false,
  "pinData": {},
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "93a6ffab-7fbe-42af-8025-f3e2a72ceea7",
  "connections": {
    "OpenAI Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "Generate sample markdown document",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Archiving PDF File": {
      "main": [
        [
          {
            "node": "Download attachment file",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Create document file": {
      "main": [
        [
          {
            "node": "Convert document to PDF",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Convert document to PDF": {
      "main": [
        [
          {
            "node": "Archiving PDF File",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Download attachment file": {
      "main": [
        [
          {
            "node": "Send message",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Configure Google Drive Folder ": {
      "main": [
        [
          {
            "node": "Create document file",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Generate sample markdown document": {
      "main": [
        [
          {
            "node": "Configure Google Drive Folder ",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "When clicking ‘Execute workflow’": {
      "main": [
        [
          {
            "node": "Generate sample markdown document",
            "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 - 文档提取, 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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工作流信息
难度等级
高级
节点数量20
分类2
节点类型8
难度说明

适合高级用户，包含 16+ 个节点的复杂工作流

作者
Trung Tran

Trung Tran

@trungtran

Empowering small and medium businesses with smart automation and practical AI, no big tech team required.

外部链接
在 n8n.io 查看 →

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