PDF to Txt Translator

The workflow JSON

Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →

{
  "name": "PDF to TXT Translator",
  "nodes": [
    {
      "parameters": {
        "path": "pdf-upload",
        "method": "POST",
        "responseMode": "lastNode"
      },
      "id": "webhook-1",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2,
      "position": [
        250,
        300
      ]
    },
    {
      "parameters": {
        "filePath": "=/files/{{$json[\"body\"][\"fileName\"]}}",
        "binaryPropertyName": "data"
      },
      "id": "read-file-1",
      "name": "Read Binary File",
      "type": "n8n-nodes-base.readBinaryFile",
      "typeVersion": 1,
      "position": [
        450,
        300
      ]
    },
    {
      "parameters": {
        "options": {},
        "binaryPropertyName": "data",
        "mode": "text"
      },
      "id": "pdf-extract-1",
      "name": "PDF Extract Text",
      "type": "n8n-nodes-base.pdfExtract",
      "typeVersion": 1,
      "position": [
        650,
        300
      ]
    },
    {
      "parameters": {
        "functionCode": "const text = $json[\"text\"];\nconst blockSize = 3000;\nlet blocks = [];\nfor (let i = 0; i < text.length; i += blockSize) {\n  blocks.push({ json: { text: text.slice(i, i + blockSize) } });\n}\nreturn blocks;"
      },
      "id": "code-1",
      "name": "Split Text",
      "type": "n8n-nodes-base.function",
      "typeVersion": 1,
      "position": [
        850,
        300
      ]
    },
    {
      "parameters": {
        "model": "gpt-3.5-turbo",
        "temperature": 0.7,
        "max_tokens": 2000,
        "messages": [
          {
            "role": "user",
            "content": "Translate the following text to Brazilian Portuguese:\n{{$json[\"text\"]}}"
          }
        ]
      },
      "id": "openai-1",
      "name": "GPT-3.5 Translate",
      "type": "n8n-nodes-base.openAi",
      "typeVersion": 1,
      "position": [
        1050,
        300
      ],
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "functionCode": "let fullText = items.map(i => i.json.translatedText).join(' ');\nreturn [{ json: { fullText } }];"
      },
      "id": "code-2",
      "name": "Combine Translations",
      "type": "n8n-nodes-base.function",
      "typeVersion": 1,
      "position": [
        1250,
        300
      ]
    },
    {
      "parameters": {
        "fileName": "/files/traduzido.txt",
        "binaryData": false,
        "dataPropertyName": "fullText"
      },
      "id": "write-file-1",
      "name": "Write TXT File",
      "type": "n8n-nodes-base.writeBinaryFile",
      "typeVersion": 1,
      "position": [
        1450,
        300
      ]
    },
    {
      "parameters": {
        "responseCode": 200,
        "responseMode": "lastNode",
        "responseData": "file",
        "options": {}
      },
      "id": "respond-webhook-1",
      "name": "Respond Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2,
      "position": [
        1650,
        300
      ]
    }
  ],
  "connections": {
    "Webhook": {
      "main": [
        [
          {
            "node": "Read Binary File",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Read Binary File": {
      "main": [
        [
          {
            "node": "PDF Extract Text",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "PDF Extract Text": {
      "main": [
        [
          {
            "node": "Split Text",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Split Text": {
      "main": [
        [
          {
            "node": "GPT-3.5 Translate",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "GPT-3.5 Translate": {
      "main": [
        [
          {
            "node": "Combine Translations",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Combine Translations": {
      "main": [
        [
          {
            "node": "Write TXT File",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Write TXT File": {
      "main": [
        [
          {
            "node": "Respond Webhook",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "staticData": null,
  "tags": [],
  "triggerCount": 0,
  "updatedAt": "2025-10-08T00:00:00.000Z",
  "versionId": "tradutor-pdf-v1",
  "meta": {
    "templateCredsSetupCompleted": true
  }
}

Credentials you'll need

Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.

• openAiApi

About this workflow

PDF to TXT Translator. Uses readBinaryFile, pdfExtract, openAi, writeBinaryFile. Webhook trigger; 8 nodes.

Source: https://github.com/PeSzpak/n8n-docker/blob/b25fabc3eca595c3ead0b8a0ebf2e871fa26018a/workflows/TradutorPDFGPT.json — original creator credit. Request a take-down →

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