5 formas de usar Gemini AI en n8n para procesar imágenes y PDFs
Avanzado
Este es unBuilding Blocks, AIflujo de automatización del dominio deautomatización que contiene 28 nodos.Utiliza principalmente nodos como Set, Filter, SplitOut, HttpRequest, ManualTrigger, combinando tecnología de inteligencia artificial para lograr automatización inteligente. 在n8n中usoGemini AIprocesamiento图像yPDFde5种方法
Requisitos previos
- •Pueden requerirse credenciales de autenticación para la API de destino
- •Clave de API de Google Gemini
Nodos utilizados (28)
Vista previa del flujo de trabajo
Visualización de las conexiones entre nodos, con soporte para zoom y panorámica
Exportar flujo de trabajo
Copie la siguiente configuración JSON en n8n para importar y usar este flujo de trabajo
{
"meta": {
"instanceId": "d4d7965840e96e50a3e02959a8487c692901dfa8d5cc294134442c67ce1622d3",
"templateCredsSetupCompleted": true
},
"nodes": [
{
"id": "eec7d9b8-d1e3-4a43-9e0d-f6d750e736b5",
"name": "Al hacer clic en 'Probar flujo de trabajo'",
"type": "n8n-nodes-base.manualTrigger",
"position": [
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],
"parameters": {},
"typeVersion": 1
},
{
"id": "5276a2cf-3d42-409a-800d-9080aa5e1a09",
"name": "Modelo de Chat Google Gemini",
"type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
"position": [
1820,
-60
],
"parameters": {
"options": {},
"modelName": "models/gemini-2.0-flash"
},
"credentials": {
"googlePalmApi": {
"id": "BB5B0v4OaFQeEt3C",
"name": "Google Gemini(PaLM) Api account"
}
},
"typeVersion": 1
},
{
"id": "1b89dca9-1137-4e0f-b3ff-1b354152c128",
"name": "Agente de IA",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
1880,
-260
],
"parameters": {
"text": "={{ $('Loop Over Items').all() }}",
"options": {
"passthroughBinaryImages": true
},
"promptType": "define"
},
"typeVersion": 1.7
},
{
"id": "00348203-882f-48da-8127-e57cf30c5b20",
"name": "Obtener imagen de unsplash2",
"type": "n8n-nodes-base.httpRequest",
"position": [
1160,
-280
],
"parameters": {
"url": "={{ $json.url }}",
"options": {}
},
"typeVersion": 4.2
},
{
"id": "1b07777f-954b-4471-ab4b-070c902c0bc1",
"name": "Dividir salida",
"type": "n8n-nodes-base.splitOut",
"position": [
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-280
],
"parameters": {
"options": {},
"fieldToSplitOut": "urls"
},
"typeVersion": 1
},
{
"id": "3646a695-d63b-4e25-93b4-a208592e6eac",
"name": "Obtener imagen de unsplash3",
"type": "n8n-nodes-base.httpRequest",
"position": [
720,
0
],
"parameters": {
"url": "={{ $json.urls }}",
"options": {}
},
"typeVersion": 4.2
},
{
"id": "34ef745b-23c6-422d-9367-de79eeb54e77",
"name": "Transformar a base64",
"type": "n8n-nodes-base.extractFromFile",
"position": [
940,
0
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"parameters": {
"options": {},
"operation": "binaryToPropery"
},
"typeVersion": 1
},
{
"id": "762507d2-2093-4ac8-a4d4-2972c53fa839",
"name": "Llamar a API Gemini1",
"type": "n8n-nodes-base.httpRequest",
"position": [
1160,
0
],
"parameters": {
"url": "=https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash:generateContent",
"method": "POST",
"options": {},
"jsonBody": "={\n \"contents\": [{\n \"parts\":[\n {\"text\": \"Whats on this image?\"},\n {\n \"inline_data\": {\n \"mime_type\": \"image/jpeg\",\n \"data\": \"{{ $json.data }}\"\n }\n }\n ]\n }]\n}\n",
"sendBody": true,
"specifyBody": "json",
"authentication": "genericCredentialType",
"genericAuthType": "httpQueryAuth"
},
"credentials": {
"httpQueryAuth": {
"id": "Eh1GI1UjOtJk4CDZ",
"name": "Query Gemini Auth account"
}
},
"typeVersion": 4.2
},
{
"id": "0dfa7ae9-1eda-49ca-8067-c467346c27cb",
"name": "Iterar sobre elementos",
"type": "n8n-nodes-base.splitInBatches",
"position": [
1560,
-280
],
"parameters": {
"options": {}
},
"typeVersion": 3
},
{
"id": "c5562d6b-0b56-4f15-bbd0-441359f89d86",
"name": "Agente de IA2",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
1560,
-700
],
"parameters": {
"text": "whats on the image",
"options": {
"passthroughBinaryImages": true
},
"promptType": "define"
},
"typeVersion": 1.7
},
{
"id": "277c44ec-109b-4dfa-bc04-defec26e6581",
"name": "Modelo de Chat Google Gemini1",
"type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
"position": [
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],
"parameters": {
"options": {},
"modelName": "models/gemini-2.0-flash"
},
"credentials": {
"googlePalmApi": {
"id": "BB5B0v4OaFQeEt3C",
"name": "Google Gemini(PaLM) Api account"
}
},
"typeVersion": 1
},
{
"id": "c303ab4e-155f-4c36-bf07-4825d0d1fd93",
"name": "Obtener imagen de unsplash4",
"type": "n8n-nodes-base.httpRequest",
"position": [
1160,
-700
],
"parameters": {
"url": "=https://plus.unsplash.com/premium_photo-1740023685108-a12c27170d51?q=80&w=2340&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D",
"options": {}
},
"typeVersion": 4.2
},
{
"id": "b786ac03-75d0-4830-849f-ee9ed8e108fa",
"name": "Obtener archivo PDF",
"type": "n8n-nodes-base.httpRequest",
"position": [
260,
360
],
"parameters": {
"url": "https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf",
"options": {}
},
"typeVersion": 4.2
},
{
"id": "bb7ba59e-050a-4259-8238-dc25f458e3c4",
"name": "Obtener imagen de unsplash",
"type": "n8n-nodes-base.httpRequest",
"position": [
260,
660
],
"parameters": {
"url": "=https://plus.unsplash.com/premium_photo-1740023685108-a12c27170d51?q=80&w=2340&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D",
"options": {}
},
"typeVersion": 4.2
},
{
"id": "65a4cb42-632b-4fbd-8e28-10e36e9f1e00",
"name": "Llamar a API Gemini con PDF",
"type": "n8n-nodes-base.httpRequest",
"position": [
720,
360
],
"parameters": {
"url": "=https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash:generateContent",
"method": "POST",
"options": {},
"jsonBody": "={\n \"contents\": [{\n \"parts\":[\n {\"text\": \"Whats on this pdf?\"},\n {\n \"inline_data\": {\n \"mime_type\": \"application/pdf\",\n \"data\": \"{{ $json.data }}\"\n }\n }\n ]\n }]\n}\n",
"sendBody": true,
"specifyBody": "json",
"authentication": "genericCredentialType",
"genericAuthType": "httpQueryAuth"
},
"credentials": {
"httpQueryAuth": {
"id": "Eh1GI1UjOtJk4CDZ",
"name": "Query Gemini Auth account"
}
},
"typeVersion": 4.2
},
{
"id": "75a13a82-c051-449a-bf52-837256c18f22",
"name": "Llamar a API Gemini con Imagen",
"type": "n8n-nodes-base.httpRequest",
"position": [
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660
],
"parameters": {
"url": "=https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash:generateContent",
"method": "POST",
"options": {},
"jsonBody": "={\n \"contents\": [{\n \"parts\":[\n {\"text\": \"Whats on this image?\"},\n {\n \"inline_data\": {\n \"mime_type\": \"image/jpeg\",\n \"data\": \"{{ $json.data }}\"\n }\n }\n ]\n }]\n}\n",
"sendBody": true,
"specifyBody": "json",
"authentication": "genericCredentialType",
"genericAuthType": "httpQueryAuth"
},
"credentials": {
"httpQueryAuth": {
"id": "Eh1GI1UjOtJk4CDZ",
"name": "Query Gemini Auth account"
}
},
"typeVersion": 4.2
},
{
"id": "55964e8d-ce0a-4157-b536-41862da946ab",
"name": "Transformar a base64 (imagen)",
"type": "n8n-nodes-base.extractFromFile",
"position": [
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660
],
"parameters": {
"options": {},
"operation": "binaryToPropery"
},
"typeVersion": 1
},
{
"id": "57fc92ee-2a74-4d49-ae7a-6c499a1f380e",
"name": "Transformar a base64 (pdf)",
"type": "n8n-nodes-base.extractFromFile",
"position": [
500,
360
],
"parameters": {
"options": {},
"operation": "binaryToPropery"
},
"typeVersion": 1
},
{
"id": "dc0a5515-1a51-4a11-9b39-ac8b30bcb0ba",
"name": "Definir múltiples URLs de imágenes",
"type": "n8n-nodes-base.set",
"position": [
260,
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],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "95f15b6e-f66a-450a-be19-75d4c339f943",
"name": "urls",
"type": "array",
"value": "=[\n \"https://plus.unsplash.com/premium_photo-1740023685108-a12c27170d51?q=80&w=2340&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D\",\n \"https://images.unsplash.com/photo-1739609579483-00b49437cc45?q=80&w=2342&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D\"\n]\n"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "4f9037a3-adc5-4ada-b977-6ecdf6f58705",
"name": "Dividir salida en múltiples elementos",
"type": "n8n-nodes-base.splitOut",
"position": [
500,
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],
"parameters": {
"options": {},
"fieldToSplitOut": "urls"
},
"typeVersion": 1
},
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"id": "0e0bbf58-4c83-4769-9616-c120296ce5e0",
"name": "Nota adhesiva",
"type": "n8n-nodes-base.stickyNote",
"position": [
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],
"parameters": {
"color": 5,
"width": 440,
"height": 340,
"content": "## When clicking \"Test workflow\"\n\nThis trigger demonstrates five different approaches to analyze media with AI:\n1. Top branch: Single image with automatic binary passthrough\n2. Second branch: Multiple images with custom prompts\n3. Third branch: Standard n8n item processing with direct API\n4. Fourth branch: PDF analysis via direct API\n5. Fifth branch: Image analysis via direct API\n\nEach approach has advantages depending on your use case.\n\n"
},
"typeVersion": 1
},
{
"id": "2a6236b2-c5a3-4feb-883a-b3654ce78278",
"name": "Definir URLs y Prompts",
"type": "n8n-nodes-base.set",
"position": [
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"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "95f15b6e-f66a-450a-be19-75d4c339f943",
"name": "urls",
"type": "array",
"value": "={{ \n[\n {\n url: \"https://plus.unsplash.com/premium_photo-1740023685108-a12c27170d51?q=80&w=2340&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D\",\n prompt: \"what is special about this image?\",\n process: true\n },\n {\n url: \"https://images.unsplash.com/photo-1739609579483-00b49437cc45?q=80&w=2342&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D\",\n prompt: \"what is the main color?\",\n process: true\n },\n {\n url: \"https://plus.unsplash.com/premium_photo-1740023685108-a12c27170d51?q=80&w=2340&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D\",\n prompt: \"test\", \n process: false\n }\n]\n}}"
}
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}
},
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"name": "Nota adhesiva1",
"type": "n8n-nodes-base.stickyNote",
"position": [
1920,
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],
"parameters": {
"color": 4,
"width": 440,
"height": 300,
"content": "## METHOD 1: Single image with automatic binary passthrough\n\nThis branch demonstrates the easiest way to analyze a single image with AI:\n1. Fetch an image from Unsplash\n2. Send directly to the AI Agent with \"Automatically Passthrough Binary Images\" enabled\n3. Get AI analysis without any data transformation\n\nBEST FOR: Quick implementation with minimal configuration for single image analysis.\n\n"
},
"typeVersion": 1
},
{
"id": "2b48f2d0-8c55-40da-acf5-0d9267691817",
"name": "Filtro (opcional)",
"type": "n8n-nodes-base.filter",
"position": [
720,
-280
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
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"combinator": "and",
"conditions": [
{
"id": "51b55272-94af-4761-a42e-5c91f3b8e39e",
"operator": {
"type": "boolean",
"operation": "true",
"singleValue": true
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"leftValue": "={{ $json.process }}",
"rightValue": ""
}
]
}
},
"typeVersion": 2.2
},
{
"id": "f9f98d03-99c6-4424-b7cc-fd2ef836173b",
"name": "Nota adhesiva2",
"type": "n8n-nodes-base.stickyNote",
"position": [
2220,
-260
],
"parameters": {
"color": 3,
"width": 460,
"height": 360,
"content": "## METHOD 2: Multiple images with custom prompts\n\nThis branch shows how to analyze different images with custom instructions:\n1. Prepare data structure with image URLs and their corresponding prompts\n2. Split into individual items and filter if needed\n3. Fetch each image from Unsplash\n4. Process sequentially through the Loop node\n5. Analyze each with its specific prompt using the AI Agent\n\nBEST FOR: When you need different analysis goals for each image (e.g., one for object detection, another for scene description).\n"
},
"typeVersion": 1
},
{
"id": "057ecbfa-3079-451f-9376-eefcdf4ab96a",
"name": "Nota adhesiva3",
"type": "n8n-nodes-base.stickyNote",
"position": [
1360,
0
],
"parameters": {
"color": 7,
"width": 360,
"height": 380,
"content": "## METHOD 3: Standard n8n item processing with direct API\n\nThis branch demonstrates n8n's standard approach to handling multiple items:\n1. Define multiple image URLs in a single node\n2. Split into individual items for processing\n3. Fetch each image individually\n4. Transform each to base64 format\n5. Make direct API calls to Gemini for each item\n\nBEST FOR: Processing multiple images using n8n's standard item-by-item approach with direct API control.\n\n"
},
"typeVersion": 1
},
{
"id": "3dfbde27-7141-4558-a958-00b2891274ec",
"name": "Nota adhesiva4",
"type": "n8n-nodes-base.stickyNote",
"position": [
920,
360
],
"parameters": {
"width": 340,
"height": 280,
"content": "## METHOD 4: PDF analysis via direct API\n\nThis branch shows how to analyze PDF documents:\n1. Fetch a PDF file\n2. Transform to base64 format\n3. Send directly to Gemini API for analysis\n\nBEST FOR: Document analysis, text extraction, summarization of PDFs.\n"
},
"typeVersion": 1
},
{
"id": "f50dae19-77e4-4450-a516-7f0e676d161a",
"name": "Nota adhesiva5",
"type": "n8n-nodes-base.stickyNote",
"position": [
920,
660
],
"parameters": {
"width": 340,
"height": 300,
"content": "## METHOD 5: Image analysis via direct API\n\nThis branch demonstrates direct API control for image analysis:\n1. Fetch an image\n2. Transform to base64 format\n3. Make a customized API call to Gemini\n\nBEST FOR: Advanced users who need precise control over API parameters and response handling.\n"
},
"typeVersion": 1
}
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},
{
"node": "bb7ba59e-050a-4259-8238-dc25f458e3c4",
"type": "main",
"index": 0
},
{
"node": "c303ab4e-155f-4c36-bf07-4825d0d1fd93",
"type": "main",
"index": 0
}
]
]
}
}
}Preguntas frecuentes
¿Cómo usar este flujo de trabajo?
Copie el código de configuración JSON de arriba, cree un nuevo flujo de trabajo en su instancia de n8n y seleccione "Importar desde JSON", pegue la configuración y luego modifique la configuración de credenciales según sea necesario.
¿En qué escenarios es adecuado este flujo de trabajo?
Avanzado - Bloques de construcción, Inteligencia Artificial
¿Es de pago?
Este flujo de trabajo es completamente gratuito, puede importarlo y usarlo directamente. Sin embargo, tenga en cuenta que los servicios de terceros utilizados en el flujo de trabajo (como la API de OpenAI) pueden requerir un pago por su cuenta.
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Información del flujo de trabajo
Nivel de dificultad
Avanzado
Número de nodos28
Categoría2
Tipos de nodos10
Descripción de la dificultad
Autor
Julian Kaiser
@jksrFull Stack Developer turned AI & Automation Engineer, implementing intelligent solutions with custom code, LLMs & n8n. Use my link to book a consultation on automating your business processes.
Enlaces externos
Ver en n8n.io →
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