5 Methoden zum Verarbeiten von Bildern und PDFs mit Gemini AI in n8n
Experte
Dies ist ein Building Blocks, AI-Bereich Automatisierungsworkflow mit 28 Nodes. Hauptsächlich werden Set, Filter, SplitOut, HttpRequest, ManualTrigger und andere Nodes verwendet, kombiniert mit KI-Technologie für intelligente Automatisierung. 5 Methoden zur Verwendung von Gemini AI zur Verarbeitung von Bildern und PDFs in n8n
Voraussetzungen
- •Möglicherweise sind Ziel-API-Anmeldedaten erforderlich
- •Google Gemini API Key
Verwendete Nodes (28)
Kategorie
Workflow-Vorschau
Visualisierung der Node-Verbindungen, mit Zoom und Pan
Workflow exportieren
Kopieren Sie die folgende JSON-Konfiguration und importieren Sie sie in n8n
{
"meta": {
"instanceId": "d4d7965840e96e50a3e02959a8487c692901dfa8d5cc294134442c67ce1622d3",
"templateCredsSetupCompleted": true
},
"nodes": [
{
"id": "eec7d9b8-d1e3-4a43-9e0d-f6d750e736b5",
"name": "Beim Klicken auf 'Workflow testen'",
"type": "n8n-nodes-base.manualTrigger",
"position": [
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-400
],
"parameters": {},
"typeVersion": 1
},
{
"id": "5276a2cf-3d42-409a-800d-9080aa5e1a09",
"name": "Google Gemini Chat Model",
"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": "AI Agent",
"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": "Bild von Unsplash abrufen2",
"type": "n8n-nodes-base.httpRequest",
"position": [
1160,
-280
],
"parameters": {
"url": "={{ $json.url }}",
"options": {}
},
"typeVersion": 4.2
},
{
"id": "1b07777f-954b-4471-ab4b-070c902c0bc1",
"name": "Aufteilen",
"type": "n8n-nodes-base.splitOut",
"position": [
500,
-280
],
"parameters": {
"options": {},
"fieldToSplitOut": "urls"
},
"typeVersion": 1
},
{
"id": "3646a695-d63b-4e25-93b4-a208592e6eac",
"name": "Bild von Unsplash abrufen3",
"type": "n8n-nodes-base.httpRequest",
"position": [
720,
0
],
"parameters": {
"url": "={{ $json.urls }}",
"options": {}
},
"typeVersion": 4.2
},
{
"id": "34ef745b-23c6-422d-9367-de79eeb54e77",
"name": "In Base64 umwandeln",
"type": "n8n-nodes-base.extractFromFile",
"position": [
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0
],
"parameters": {
"options": {},
"operation": "binaryToPropery"
},
"typeVersion": 1
},
{
"id": "762507d2-2093-4ac8-a4d4-2972c53fa839",
"name": "Gemini API aufrufen1",
"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": "Über Elemente iterieren",
"type": "n8n-nodes-base.splitInBatches",
"position": [
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],
"parameters": {
"options": {}
},
"typeVersion": 3
},
{
"id": "c5562d6b-0b56-4f15-bbd0-441359f89d86",
"name": "AI Agent2",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
1560,
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],
"parameters": {
"text": "whats on the image",
"options": {
"passthroughBinaryImages": true
},
"promptType": "define"
},
"typeVersion": 1.7
},
{
"id": "277c44ec-109b-4dfa-bc04-defec26e6581",
"name": "Google Gemini Chat Model1",
"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": "Bild von Unsplash abrufen4",
"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": "PDF-Datei abrufen",
"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": "Bild von Unsplash abrufen",
"type": "n8n-nodes-base.httpRequest",
"position": [
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],
"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": "Gemini API mit PDF aufrufen",
"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": "Gemini API mit Bild aufrufen",
"type": "n8n-nodes-base.httpRequest",
"position": [
720,
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": "In Base64 umwandeln (Bild)",
"type": "n8n-nodes-base.extractFromFile",
"position": [
500,
660
],
"parameters": {
"options": {},
"operation": "binaryToPropery"
},
"typeVersion": 1
},
{
"id": "57fc92ee-2a74-4d49-ae7a-6c499a1f380e",
"name": "In Base64 umwandeln (PDF)",
"type": "n8n-nodes-base.extractFromFile",
"position": [
500,
360
],
"parameters": {
"options": {},
"operation": "binaryToPropery"
},
"typeVersion": 1
},
{
"id": "dc0a5515-1a51-4a11-9b39-ac8b30bcb0ba",
"name": "Mehrere Bild-URLs definieren",
"type": "n8n-nodes-base.set",
"position": [
260,
0
],
"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": "In mehrere Elemente aufteilen",
"type": "n8n-nodes-base.splitOut",
"position": [
500,
0
],
"parameters": {
"options": {},
"fieldToSplitOut": "urls"
},
"typeVersion": 1
},
{
"id": "0e0bbf58-4c83-4769-9616-c120296ce5e0",
"name": "Notizzettel",
"type": "n8n-nodes-base.stickyNote",
"position": [
-760,
-780
],
"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": "URLs und Prompts definieren",
"type": "n8n-nodes-base.set",
"position": [
260,
-280
],
"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}}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "91dd2eec-3179-4c14-857e-bb65499723be",
"name": "Notizzettel1",
"type": "n8n-nodes-base.stickyNote",
"position": [
1920,
-700
],
"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": "Filter (optional)",
"type": "n8n-nodes-base.filter",
"position": [
720,
-280
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "51b55272-94af-4761-a42e-5c91f3b8e39e",
"operator": {
"type": "boolean",
"operation": "true",
"singleValue": true
},
"leftValue": "={{ $json.process }}",
"rightValue": ""
}
]
}
},
"typeVersion": 2.2
},
{
"id": "f9f98d03-99c6-4424-b7cc-fd2ef836173b",
"name": "Notizzettel2",
"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": "Notizzettel3",
"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": "Notizzettel4",
"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": "Notizzettel5",
"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
}
],
"pinData": {},
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{
"node": "bb7ba59e-050a-4259-8238-dc25f458e3c4",
"type": "main",
"index": 0
},
{
"node": "c303ab4e-155f-4c36-bf07-4825d0d1fd93",
"type": "main",
"index": 0
}
]
]
}
}
}Häufig gestellte Fragen
Wie verwende ich diesen Workflow?
Kopieren Sie den obigen JSON-Code, erstellen Sie einen neuen Workflow in Ihrer n8n-Instanz und wählen Sie "Aus JSON importieren". Fügen Sie die Konfiguration ein und passen Sie die Anmeldedaten nach Bedarf an.
Für welche Szenarien ist dieser Workflow geeignet?
Experte - Bausteine, Künstliche Intelligenz
Ist es kostenpflichtig?
Dieser Workflow ist völlig kostenlos. Beachten Sie jedoch, dass Drittanbieterdienste (wie OpenAI API), die im Workflow verwendet werden, möglicherweise kostenpflichtig sind.
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