Create custom PDF documents from templates with Gemini & Google Drive

Documents & extraction workflow for n8n with 30 active steps. Starts with Chat Trigger, Execute Workflow Trigger. Uses Google Gemini. Integrations include Google Gemini, Google Drive.

By Ozgur KaratekeWorkflowReference information

What it does

30 active nodes · Starts with Chat Trigger, Execute Workflow Trigger.

Steps in the template include:

Google Gemini Chat Model (Google Gemini Chat Model)
GetMetaData (http Request Tool)
When chat message received (Chat Trigger)
DocAgent (AI Agent)

Nodes and integrations

Google Gemini Chat Model ×3
http Request Tool
Chat Trigger
AI Agent
Call n8n Workflow Tool
Postgres Chat Memory
HTTP Request ×4
Execute Workflow Trigger
If ×3
Structured Output Parser
Edit Fields (Set) ×8
Switch
Google Drive
Basic LLM Chain ×2
Code

See the author’s step names

Google Gemini Chat Model (Google Gemini Chat Model)
GetMetaData (http Request Tool)
When chat message received (Chat Trigger)
DocAgent (AI Agent)
DocProcess (Call n8n Workflow Tool)
Postgres Chat Memory (Postgres Chat Memory)
Template List (HTTP Request)
When Executed by Another Workflow (Execute Workflow Trigger)
If (If)
Google Gemini Chat Model1 (Google Gemini Chat Model)
Structured Output Parser (Structured Output Parser)
Edit Fields (Edit Fields (Set))
If1 (If)
Other Errors (Edit Fields (Set))
Switch (Switch)
CopyTemplate (Google Drive) — copy
FillDocument (HTTP Request)
Google Gemini Chat Model2 (Google Gemini Chat Model)
User Choice Matching Error (Edit Fields (Set))
User Choice Match Correct (Edit Fields (Set))
User Choice Match Check (Basic LLM Chain)
GetMetaData2 (HTTP Request)
Format Control (Basic LLM Chain)
Formatting Correction (Code)
Cop. Document ID Matching Error (Edit Fields (Set))
if (If)
Generate Download Link (HTTP Request)
Download Link Format (Edit Fields (Set))
Incomplete Information Error (Edit Fields (Set))
Template Technical Error (Edit Fields (Set))

Accounts and credentials

Google Gemini access
Google Drive
PostgreSQL
Google Docs

Credential types in the graph: googlePalmApi, googleDriveOAuth2Api, postgres, googleDocsOAuth2Api

Check the HTTP request steps for any additional service accounts or API keys.

AI models and swaps

Google Gemini · Chat

models/gemini-2.5-pro in Google Gemini Chat Model. Potentially swappable with a compatible n8n chat model node. Match tool calling before testing.

Google Gemini · Chat

models/gemini-2.5-pro in Google Gemini Chat Model1. Potentially swappable with a compatible n8n chat model node. Test the replacement with the next step.

Google Gemini · Chat

models/gemini-2.5-pro in Google Gemini Chat Model2. Potentially swappable with a compatible n8n chat model node. Match structured output before testing.

Inputs and setup options

When chat message received: public chat is enabled in the template

Resource information

Credit basis: Author listed by n8n
Pricing: Template access shown on n8n
License: Not specified
Last record update: Nov 5, 2026