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Create LinkedIn image posts with captions using Google Gemini and LinkedIn

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Create LinkedIn image posts with captions using Google Gemini and LinkedIn preview
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1. Workflow Overview

Transform your quotes into stunning LinkedIn posts with AI! This workflow automatically generates professional image designs and engaging captions from your text input using Google Gemini AI. Simpl...

Best for

  • Content Creation automation workflows
  • Multimodal AI automation workflows
  • intermediate n8n builders looking for reusable templates

Tools used

n8n-nodes-base.webhook, n8n-nodes-base.respondtowebhook, @n8n/n8n-nodes-langchain.lmchatgooglegemini, n8n-nodes-base.stickynote, @n8n/n8n-nodes-langchain.agent, @n8n/n8n-nodes-langchain.googlegemini, n8n-nodes-base.extractfromfile, n8n-nodes-base.merge

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Gilbert Onyebuchi.

Original n8n.io source

1.1 Workflow description

Title
Create LinkedIn image posts with captions using Google Gemini and LinkedIn
Workflow name
Create LinkedIn image posts with captions using Google Gemini and LinkedIn

Transform your quotes into stunning LinkedIn posts with AI!

This workflow automatically generates professional image designs and engaging captions from your text input using Google Gemini AI.

Simply enter your quote on the custom HTML interface, and the workflow creates a beautiful visual design paired with a compelling LinkedIn caption. Edit the caption to match your style, then post directly to LinkedIn, all from one seamless interface.

Perfect for content creators, marketers, and professionals who want to maintain an active LinkedIn presence without spending hours on design and copywriting.

What you'll need:

  • Google Gemini API credentials
  • LinkedIn API credentials
  • Custom HTML website (included in setup)

Watch the full setup tutorial: Watch now

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Webhook - Receive Form

Type / Role
n8n-nodes-base.webhook - webhook
Config choices
Version 1.1

Block 2 - Webhook-LinkedIn-post

Type / Role
n8n-nodes-base.webhook - webhook
Config choices
Version 2.1

Block 3 - Respond to Webhook

Type / Role
n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices
Version 1.4

Block 4 - Respond to Webhook2

Type / Role
n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices
Version 1

Block 5 - Google Gemini Chat Model

Type / Role
@n8n/n8n-nodes-langchain.lmChatGoogleGemini - lmChatGoogleGemini
Config choices
Version 1

Block 6 - Sticky Note2

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 7 - Sticky Note

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 8 - Sticky Note1

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 9 - Generate post caption

Type / Role
@n8n/n8n-nodes-langchain.agent - agent
Config choices
Version 3.1

Block 10 - Generate post image

Type / Role
@n8n/n8n-nodes-langchain.googleGemini - googleGemini
Config choices
Version 1.1

Block 11 - Convert binary to base64

Type / Role
n8n-nodes-base.extractFromFile - extractFromFile
Config choices
Version 1.1

Block 12 - Combine the branches

Type / Role
n8n-nodes-base.merge - merge
Config choices
Version 3.2

Block 13 - Set prompt and image

Type / Role
n8n-nodes-base.set - set
Config choices
Version 3.4

Block 14 - Create Linkedin post

Type / Role
n8n-nodes-base.linkedIn - linkedIn
Config choices
Version 1

3. Summary Table

Workflow Create LinkedIn image posts with captions using Google Gemini and LinkedIn
Complexity intermediate
Nodes 14
Categories Content Creation, Multimodal AI
Author Gilbert Onyebuchi
Published 30 Jan 2026

4. Reproducing the Workflow from Scratch

  1. 1. Download the workflow JSON

    Use the JSON export at /data/workflows/13112/13112.json as the source template for this automation.

  2. 2. Import the template into n8n

    Open n8n, import the downloaded JSON, and review each node before activating the workflow.

  3. 3. Configure credentials and variables

    Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.

  4. 4. Test with sample data

    Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.

  5. 5. Activate and monitor

    Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Frequently asked questions

What does Create LinkedIn image posts with captions using Google Gemini and LinkedIn do?

Transform your quotes into stunning LinkedIn posts with AI! This workflow automatically generates professional image designs and engaging captions from your text input using Google Gemini AI. Simpl...

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Content Creation, Multimodal AI use case.