Extraer y procesar información directamente de PDF usando Claude y Gemini

• •Credenciales de API de Google Drive
• •Pueden requerirse credenciales de autenticación para la API de destino

{
  "meta": {
    "instanceId": "f4f5d195bb2162a0972f737368404b18be694648d365d6c6771d7b4909d28167"
  },
  "nodes": [
    {
      "id": "b6cd232e-e82e-457b-9f03-c010b3eba148",
      "name": "Al hacer clic en 'Probar flujo de trabajo'",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -40,
        0
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "2b734806-e3c0-4552-a491-54ca846ed3ac",
      "name": "Extraer de archivo",
      "type": "n8n-nodes-base.extractFromFile",
      "position": [
        620,
        0
      ],
      "parameters": {
        "options": {},
        "operation": "binaryToPropery"
      },
      "typeVersion": 1
    },
    {
      "id": "2c199499-cc4f-405c-8560-765500b7acba",
      "name": "Google Drive",
      "type": "n8n-nodes-base.googleDrive",
      "position": [
        420,
        0
      ],
      "parameters": {
        "fileId": {
          "__rl": true,
          "mode": "list",
          "value": "18Ac2xorxirIBm9FNFDDB5aVUSPBCCg1U",
          "cachedResultUrl": "https://drive.google.com/file/d/18Ac2xorxirIBm9FNFDDB5aVUSPBCCg1U/view?usp=drivesdk",
          "cachedResultName": "Invoice-798FE2FA-0004.pdf"
        },
        "options": {},
        "operation": "download"
      },
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "AUEpxwlqBJghNMtb",
          "name": "Google Drive account"
        }
      },
      "typeVersion": 3
    },
    {
      "id": "e3031c0c-f059-4f30-9684-10014a277d55",
      "name": "Llamar a Gemini 2.0 Flash con capacidades PDF",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        880,
        220
      ],
      "parameters": {
        "url": "https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash-exp:generateContent",
        "method": "POST",
        "options": {},
        "jsonBody": "={\n  \"contents\": [\n    {\n      \"parts\": [\n        {\n          \"inline_data\": {\n            \"mime_type\": \"application/pdf\",\n            \"data\": \"{{ $json.data }}\"\n          }\n        },\n        {\n          \"text\": \"{{ $('Define Prompt').item.json.prompt }}\"\n        }\n      ]\n    }\n  ]\n}",
        "sendBody": true,
        "specifyBody": "json",
        "authentication": "predefinedCredentialType",
        "nodeCredentialType": "googlePalmApi"
      },
      "credentials": {
        "anthropicApi": {
          "id": "eOt6Ois0jSizRFMJ",
          "name": "Anthropic Mira Account"
        },
        "googlePalmApi": {
          "id": "IQrjvfoUd5LUft3b",
          "name": "Google Gemini(PaLM) Api account"
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "135df716-32a1-47e8-9ed8-30c830b803d6",
      "name": "Llamar a Claude 3.5 Sonnet con capacidades PDF",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        880,
        -140
      ],
      "parameters": {
        "url": "https://api.anthropic.com/v1/messages",
        "method": "POST",
        "options": {},
        "jsonBody": "={\n  \"model\": \"claude-3-5-sonnet-20241022\",\n    \"max_tokens\": 1024,\n    \"messages\": [{\n        \"role\": \"user\",\n        \"content\": [{\n            \"type\": \"document\",\n            \"source\": {\n                \"type\": \"base64\",\n                \"media_type\": \"application/pdf\",\n                \"data\": \"{{$json.data}}\"\n            }\n        },\n        {\n            \"type\": \"text\",\n            \"text\": \"{{ $('Define Prompt').item.json.prompt }}\"\n        }]\n    }]\n}",
        "sendBody": true,
        "sendHeaders": true,
        "specifyBody": "json",
        "authentication": "predefinedCredentialType",
        "headerParameters": {
          "parameters": [
            {
              "name": "anthropic-version",
              "value": "2023-06-01"
            },
            {
              "name": "content-type",
              "value": "application/json"
            }
          ]
        },
        "nodeCredentialType": "anthropicApi"
      },
      "credentials": {
        "anthropicApi": {
          "id": "eOt6Ois0jSizRFMJ",
          "name": "Anthropic Mira Account"
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "5b8994d1-4bfd-4776-84ac-b3141aca6378",
      "name": "Nota adhesiva 1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -700,
        -280
      ],
      "parameters": {
        "color": 7,
        "width": 601,
        "height": 585,
        "content": "## Workflow: Extract data from PDF with Claude 3.5 Sonnet or Gemini 2.0 Flash\n\n**Overview**\n- This workflow helps you compare Claude 3.5 Sonnet and Gemini 2.0 Flash when extracting data from a PDF\n- This workflow extracts and processes the data within a PDF in **one single step**, **instead of calling an OCR and then an LLM”**\n\n\n**How it works**\n- The initial 2 steps download the PDF and convert it to base64.\n- This base64 string is then sent to both Claude 3.5 Sonnet and Gemini 2.0 Flash to extract information.\n- This workflow is made to let you compare results, latency, and cost (in their dedicated dashboard).\n\n\n**How to use it**\n- Set up your Google Drive if not already done\n- Select a document on your Google Drive\n- Modify the prompt in \"Define Prompt\" to extract the information you need and transform it as wanted.\n- Get a [Claude API key](https://console.anthropic.com/settings/keys) and/or [Gemini API key](https://aistudio.google.com/app/apikey)\n- Note that you can deactivate one of the 2 API calls if you don't want to try both\n- Test the Workflow\n"
      },
      "typeVersion": 1
    },
    {
      "id": "616241a9-6199-406b-88dc-0afc7d974250",
      "name": "Nota adhesiva",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        820,
        60
      ],
      "parameters": {
        "color": 5,
        "width": 320,
        "height": 360,
        "content": "You can output the result as JSON by adding the following:\n```\n\"generationConfig\": {\n    \"responseMimeType\": \"application/json\"\n```\nor even use a structured output.\n[Check the documentation](https://ai.google.dev/gemini-api/docs/structured-output?lang=rest)"
      },
      "typeVersion": 1
    },
    {
      "id": "bbac8d3d-d68f-4aa2-a41a-b06f7de2317b",
      "name": "Definir prompt",
      "type": "n8n-nodes-base.set",
      "position": [
        180,
        0
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "dba23ef5-95df-496a-8e24-c7c1544533d2",
              "name": "prompt",
              "type": "string",
              "value": "Extract the VAT numbers for each country"
            }
          ]
        }
      },
      "typeVersion": 3.4
    },
    {
      "id": "3c2e7265-76e5-4911-a950-7e6b0c89ec5a",
      "name": "Nota adhesiva 2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        820,
        -200
      ],
      "parameters": {
        "color": 5,
        "width": 320,
        "height": 240,
        "content": "You can force Claude to output JSON with [Prefill response format](https://docs.anthropic.com/en/docs/test-and-evaluate/strengthen-guardrails/increase-consistency#prefill-claudes-response)"
      },
      "typeVersion": 1
    },
    {
      "id": "f2b46305-5200-486e-ad4d-ecc0d2a14314",
      "name": "Nota adhesiva 3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        380,
        -120
      ],
      "parameters": {
        "color": 5,
        "width": 380,
        "height": 280,
        "content": "These 2 steps first download the PDF file, and then convert it to base64.\nThis is required by both APIs to process the file."
      },
      "typeVersion": 1
    },
    {
      "id": "e5dff70f-b55a-4c23-9025-765a7cf19c4a",
      "name": "Nota adhesiva 4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        120,
        -120
      ],
      "parameters": {
        "color": 5,
        "width": 220,
        "height": 280,
        "content": "This prompt is used in both Gemini’s and Claude’s calls to define what information should be extracted and processed."
      },
      "typeVersion": 1
    }
  ],
  "pinData": {},
  "connections": {
    "2c199499-cc4f-405c-8560-765500b7acba": {
      "main": [
        [
          {
            "node": "2b734806-e3c0-4552-a491-54ca846ed3ac",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "bbac8d3d-d68f-4aa2-a41a-b06f7de2317b": {
      "main": [
        [
          {
            "node": "2c199499-cc4f-405c-8560-765500b7acba",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "2b734806-e3c0-4552-a491-54ca846ed3ac": {
      "main": [
        [
          {
            "node": "135df716-32a1-47e8-9ed8-30c830b803d6",
            "type": "main",
            "index": 0
          },
          {
            "node": "e3031c0c-f059-4f30-9684-10014a277d55",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "b6cd232e-e82e-457b-9f03-c010b3eba148": {
      "main": [
        [
          {
            "node": "bbac8d3d-d68f-4aa2-a41a-b06f7de2317b",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}