Extract and process information directly from PDF using Claude and Gemini.json

{
"meta": {
"instanceId": "f4f5d195bb2162a0972f737368404b18be694648d365d6c6771d7b4909d28167"
},
"nodes": [
{
"id": "b6cd232e-e82e-457b-9f03-c010b3eba148",
"name": "When clicking 'Test workflow'",
"type": "n8n-nodes-base.manualTrigger",
"position": [
-40,
0
],
"parameters": {},
"typeVersion": 1
},
{
"id": "2b734806-e3c0-4552-a491-54ca846ed3ac",
"name": "Extract from File",
"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": "Call Gemini 2.0 Flash with PDF Capabilities",
"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\": \"{{ $('Define Prompt').item.json.prompt }}\"\n }\n ]\n }\n ]\n}",
"sendBody": true,
"specifyBody": "json",
"authentication": "predefinedCredentialType",
"nodeCredentialType": "googlePalmApi"
},
"credentials": {
"anthropicApi": {
"id": "eOt6Ois0jSizRFMJ",
"name": "Anthropic Mira Account"
},
"googlePalmApi": {
"id": "IQrjvfoUd5LUft3b",
"name": "Google Gemini(PaLM) Api account"
}
},
"typeVersion": 4.2
},
{
"id": "135df716-32a1-47e8-9ed8-30c830b803d6",
"name": "Call Claude 3.5 Sonnet with PDF Capabilities",
"type": "n8n-nodes-base.httpRequest",
"position": [
880,
-140
],
"parameters": {
"url": "https://api.anthropic.com/v1/messages",
"method": "POST",
"options": {},
"jsonBody": "={\n \"model\": \"claude-3-5-sonnet-20241022\",\n \"max_tokens\": 1024,\n \"messages\": [{\n \"role\": \"user\",\n \"content\": [{\n \"type\": \"document\",\n \"source\": {\n \"type\": \"base64\",\n \"media_type\": \"application/pdf\",\n \"data\": \"{{$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": "Sticky Note1",
"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": "Sticky Note",
"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": "Define 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": "Sticky Note2",
"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": "Sticky Note3",
"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": "Sticky Note4",
"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": {
"Google Drive": {
"main": [
[
{
"node": "Extract from File",
"type": "main",
"index": 0
}
]
]
},
"Define Prompt": {
"main": [
[
{
"node": "Google Drive",
"type": "main",
"index": 0
}
]
]
},
"Extract from File": {
"main": [
[
{
"node": "Call Claude 3.5 Sonnet with PDF Capabilities",
"type": "main",
"index": 0
},
{
"node": "Call Gemini 2.0 Flash with PDF Capabilities",
"type": "main",
"index": 0
}
]
]
},
"When clicking 'Test workflow'": {
"main": [
[
{
"node": "Define Prompt",
"type": "main",
"index": 0
}
]
]
}
}
}