This workflow follows the Google Drive → HTTP Request recipe pattern — see all workflows that pair these two integrations.
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 →
{
"id": "NDCN2arRu5tLuP61",
"meta": {
"templateCredsSetupCompleted": true
},
"name": "Automate PDF Image Extraction & Analysis with GPT-4o and Google Drive",
"tags": [],
"nodes": [
{
"id": "78bb478a-721d-433f-a615-8f131ef1d87f",
"name": "When clicking \u2018Test workflow\u2019",
"type": "n8n-nodes-base.manualTrigger",
"position": [
-1180,
140
],
"parameters": {},
"typeVersion": 1
},
{
"id": "b1c2e97b-3539-4e16-89df-434a34c6a243",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-740,
-440
],
"parameters": {
"color": 3,
"width": 360,
"height": 480,
"content": "### Setup\n1.Set up your credentials when you first open the workflow. You\u2019ll need accounts for OpenAI, Convert API, and Google Drive.\n2.Convert API does not rate-limit your API, sometimes you may receive 503 service unavailable error.\nNevertheless, it doesn\u2019t mean that you cannot convert your file. It simply means that you should retry the conversion in a few seconds.\n3.Upload a PDF with images to Google Drive.\n4.Remove unnecessary parts and retrieve image-related information.\n5.Integrate image and image analysis information together.\n6.Analyze each image using the OPENAI GPT-4o model.\n7.Retrieve all image analysis content and image URL\n8.Integrate multiple image URLs and analysis content\n9.Output content to a .txt file.\n\nTemplate was created in n8n v1.83.2"
},
"typeVersion": 1
},
{
"id": "3b2a81eb-19b4-4685-90a3-1b4096b2d3b7",
"name": "Get pdf file",
"type": "n8n-nodes-base.googleDrive",
"position": [
-1000,
40
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "list",
"value": "1WoqaMgaCD-gChGWUqPRJ7-pxbTozEuXN",
"cachedResultUrl": "https://drive.google.com/file/d/1WoqaMgaCD-gChGWUqPRJ7-pxbTozEuXN/view?usp=drivesdk",
"cachedResultName": "Building Effective AI Agents _ Anthropic.pdf"
},
"options": {},
"operation": "download"
},
"credentials": {
"googleDriveOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 3
},
{
"id": "89208aa8-37d8-424c-a936-52539a9bc7ee",
"name": "Get all img_url",
"type": "n8n-nodes-base.set",
"position": [
-520,
160
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "7715e33a-c5cc-4a22-aa28-ac19a24bbd7c",
"name": "url",
"type": "string",
"value": "={{ $json.Url }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "5c1ece53-1910-42d6-a1e4-bfa6d5a83fe9",
"name": "Analyze image",
"type": "@n8n/n8n-nodes-langchain.openAi",
"position": [
-360,
40
],
"parameters": {
"text": "Please analyze the video in detail and provide a thorough explanation",
"modelId": {
"__rl": true,
"mode": "list",
"value": "gpt-4o",
"cachedResultName": "GPT-4O"
},
"options": {},
"resource": "image",
"simplify": false,
"imageUrls": "={{ $json.url }}",
"operation": "analyze"
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.8
},
{
"id": "9e09364d-fb82-4524-b6aa-b8a6040893ba",
"name": "Extract pdf image",
"type": "n8n-nodes-base.httpRequest",
"position": [
-840,
140
],
"parameters": {
"url": "https://v2.convertapi.com/convert/pdf/to/extract-images",
"method": "POST",
"options": {},
"sendBody": true,
"contentType": "multipart-form-data",
"sendHeaders": true,
"authentication": "genericCredentialType",
"bodyParameters": {
"parameters": [
{
"name": "StoreFile",
"value": "true"
},
{
"name": "ImageOutputFormat",
"value": "jpg"
},
{
"name": "File",
"parameterType": "formBinaryData",
"inputDataFieldName": "data"
}
]
},
"genericAuthType": "httpHeaderAuth",
"headerParameters": {
"parameters": [
{}
]
}
},
"credentials": {
"httpHeaderAuth": {
"name": "<your credential>"
}
},
"retryOnFail": true,
"typeVersion": 4.2,
"waitBetweenTries": 5000
},
{
"id": "8fd6e8ae-bea1-4d7f-8599-7bf6f4eee9e5",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1080,
280
],
"parameters": {
"color": 5,
"width": 202,
"height": 99,
"content": "### You can exchange this with any trigger you like (*e.g. google drive trigger*)"
},
"typeVersion": 1
},
{
"id": "b0ce7fdd-7328-49b2-8ec6-797205aa7ab5",
"name": "Get image data",
"type": "n8n-nodes-base.splitOut",
"position": [
-680,
40
],
"parameters": {
"options": {},
"fieldToSplitOut": "Files"
},
"typeVersion": 1
},
{
"id": "c5855876-41d9-46a4-bdec-e60effa116e8",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1060,
-220
],
"parameters": {
"width": 300,
"content": "### PDF Image Extraction and Analysis with GPT-4o\nThis n8n workflow automates the process of extracting images from PDF files and analyzing them with AI, then compiling the results into a document."
},
"typeVersion": 1
},
{
"id": "7cea9e1b-0094-4220-bdf6-f13ab795e394",
"name": "Get image analyze content",
"type": "n8n-nodes-base.set",
"position": [
-200,
160
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "2868a5bd-86a8-4962-a867-b4a354276181",
"name": "content",
"type": "string",
"value": "={{ $('Get all img_url').item.json.url }}\n{{ $json.choices[0].message.content }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "de4b6fab-d086-4bf3-81fc-a6f7b7eac24b",
"name": "Integrate all content to a a content",
"type": "n8n-nodes-base.code",
"position": [
-40,
40
],
"parameters": {
"jsCode": "const mergedContent = items.map(item => item.json.content).join('\\n');\n\nreturn [\n {\n json: {\n content: mergedContent\n }\n }\n];\n"
},
"typeVersion": 2
},
{
"id": "e66f7c66-9096-4bf5-b1dc-02dafeaa62ee",
"name": "Output content to a .txt file",
"type": "n8n-nodes-base.convertToFile",
"position": [
140,
140
],
"parameters": {
"options": {},
"operation": "toText",
"sourceProperty": "content"
},
"typeVersion": 1.1
}
],
"active": false,
"settings": {
"timezone": "Asia/Taipei",
"callerPolicy": "workflowsFromSameOwner",
"executionOrder": "v1"
},
"versionId": "4c2771a6-f532-4bfd-bb98-3eae8b0ee85a",
"connections": {
"Get pdf file": {
"main": [
[
{
"node": "Extract pdf image",
"type": "main",
"index": 0
}
]
]
},
"Analyze image": {
"main": [
[
{
"node": "Get image analyze content",
"type": "main",
"index": 0
}
]
]
},
"Get image data": {
"main": [
[
{
"node": "Get all img_url",
"type": "main",
"index": 0
}
]
]
},
"Get all img_url": {
"main": [
[
{
"node": "Analyze image",
"type": "main",
"index": 0
}
]
]
},
"Extract pdf image": {
"main": [
[
{
"node": "Get image data",
"type": "main",
"index": 0
}
]
]
},
"Get image analyze content": {
"main": [
[
{
"node": "Integrate all content to a a content",
"type": "main",
"index": 0
}
]
]
},
"Output content to a .txt file": {
"main": [
[]
]
},
"When clicking \u2018Test workflow\u2019": {
"main": [
[
{
"node": "Get pdf file",
"type": "main",
"index": 0
}
]
]
},
"Integrate all content to a a content": {
"main": [
[
{
"node": "Output content to a .txt file",
"type": "main",
"index": 0
}
]
]
}
}
}
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.
googleDriveOAuth2ApihttpHeaderAuthopenAiApi
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How this works
Effortlessly extract and analyse images from PDFs stored in Google Drive, delivering instant insights via GPT-4o without manual downloads or complex tools. This workflow suits content creators, researchers, or teams handling document-heavy processes who need quick visual data interpretation to inform decisions or reports. The pivotal step involves GPT-4o processing each extracted image for detailed descriptions, categorisation, or anomaly detection, streamlining what would otherwise be hours of tedious work.
Use this workflow for regular PDF reviews in marketing, legal, or academic settings where image content drives key outcomes, such as spotting trends in infographics. Avoid it for non-image PDFs or when basic extraction without AI suffices, as simpler tools like Adobe Acrobat would be more efficient. Common variations include adding email notifications for analysis results or integrating with Slack for team alerts on critical findings.
About this workflow
Automate PDF Image Extraction & Analysis with GPT-4o and Google Drive. Uses manualTrigger, stickyNote, googleDrive, openAi. Event-driven trigger; 12 nodes.
Source: https://github.com/Zie619/n8n-workflows — original creator credit. Request a take-down →
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