Extract specific pages from PDFs with CustomJS API

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

This n8n template shows how to extract selected pages from a generated PDF with the PDF Toolkit by www.customjs.space. [@custom js/n8n nodes pdf toolkit](https://www.np...

Best for

Document Extraction automation workflows
beginner n8n builders looking for reusable templates

Tools used

n8n-nodes-base.manualtrigger, @custom-js/n8n-nodes-pdf-toolkit.extractpages, n8n-nodes-base.httprequest

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Extract specific pages from PDFs with CustomJS API
Workflow name: Extract specific pages from PDFs with CustomJS API

This n8n template shows how to extract selected pages from a generated PDF with the PDF Toolkit by www.customjs.space.

@custom-js/n8n-nodes-pdf-toolkit

Notice

Community nodes can only be installed on self-hosted instances of n8n.

What this workflow does

Downloads each PDF using an HTTP Request.
Extract pages from the PDF file as needed.

Requirements

Self-hosted n8n instance
CustomJS API key for extracting PDF files.
PDF files to be merged to be converted into a PDF

Workflow Steps:

Manual Trigger:
- Runs with user interaction.
Download PDF File:
- Pass urls for PDF files to merge.
Extract Pages from PDF:
- Extract selected pages from a generated PDF

Usage

Get API key from customJS

Sign up to customJS platform.
Navigate to your profile page
Press "Show" button to get API key

Set Credentials for CustomJS API on n8n

Copy and paste your API key generated from CustomJS here.

Design workflow

A Manual Trigger for starting workflow.
HTTP Request Nodes for downloading PDF files.
Extract Pages from PDF.

You can replace logic for triggering and returning results. For example, you can trigger this workflow by calling a webhook and get a result as a response from webhook. Simply replace Manual Trigger and Write to Disk nodes.

Perfect for

Taking a note of specific pages from PDF files.
Splitting PDF file into multiple parts.

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 - When clicking ‘Test workflow’

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

Block 2 - Extract Pages From PDF1

Type / Role: @custom-js/n8n-nodes-pdf-toolkit.ExtractPages - ExtractPages
Config choices: Version 1

Block 3 - HTTP Request

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

3. Summary Table

Workflow	Extract specific pages from PDFs with CustomJS API
Complexity	beginner
Nodes	3
Categories	Document Extraction
Author	CustomJS
Published	05 May 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/3872/3872.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

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

Download workflow JSON Original n8n.io source Document Extraction workflows

Frequently asked questions

What does Extract specific pages from PDFs with CustomJS API do?

This n8n template shows how to extract selected pages from a generated PDF with the PDF Toolkit by www.customjs.space. [@custom js/n8n nodes pdf toolkit](https://www.np...

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 Document Extraction use case.

CustomJS

22 workflows

Nodes

n8n-nodes-base.manualtrigger @custom-js/n8n-nodes-pdf-toolkit.extractpages n8n-nodes-base.httprequest

Complexity

beginner

Published 05 May 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/3872/3872.json

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Extract specific pages from PDFs with CustomJS API

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Notice

What this workflow does

Requirements

Workflow Steps:

Usage

Get API key from customJS

Set Credentials for CustomJS API on n8n

Design workflow

Perfect for

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - When clicking ‘Test workflow’

Block 2 - Extract Pages From PDF1

Block 3 - HTTP Request

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions