Convert PDF Articles to Audio Podcasts with Google TTS & Cloudflare R2

Convert PDF Articles to Podcast

Workflow Name: Convert PDF Articles to Podcast Author: Devjothi Dutta Category: Productivity, Content Creation, Automation Complexity: Medium Setup Time: 45-60 minutes

📖 Description

Transform any PDF article, research paper, or document into a high-quality audio podcast automatically. This workflow extracts text from PDFs, converts it to natural-sounding speech using Google Cloud Text-to-Speech, stores the audio files in cloud storage, and generates an RSS feed compatible with all major podcast apps (Apple Podcasts, Spotify, Pocket Casts, etc.).

Perfect for consuming long-form content while commuting, exercising, or multitasking. Turn your reading list into a personal podcast feed.

👥 Who's it for

For Professionals: Convert industry reports and whitepapers to audio Listen to research papers during commutes Stay updated with long-form articles hands-free

For Students: Turn textbooks and study materials into audio Create audio versions of lecture notes Study while exercising or commuting

For Content Creators: Repurpose written content into audio format Create podcast episodes from blog posts Reach audio-focused audiences

For Busy Readers: Convert saved articles to a personal podcast Listen to newsletters and essays on the go Build a private audio library

✨ Key Features

📄 PDF Text Extraction** - Automatically extracts text from any PDF file 🎙️ Natural Voice Synthesis** - High-quality WaveNet voices from Google Cloud TTS ☁️ Cloud Storage** - Files hosted on Cloudflare R2 (S3-compatible) with public URLs 📻 RSS Feed Generation** - Full iTunes-compatible podcast feed with metadata 📧 Email Notifications** - Instant alerts when new episodes are ready 🎨 Custom Branding** - Configurable podcast name, artwork, and descriptions ⚙️ Modular Configuration** - Easy-to-update centralized config node 🔄 Automated Workflow** - Set it and forget it - fully automated pipeline

🛠️ Requirements

Required Services: n8n (self-hosted or cloud) - Workflow automation platform Google Cloud Platform - Text-to-Speech API access Free tier: 1 million characters/month (WaveNet voices) Paid: $16 per 1 million characters Cloudflare R2 - Object storage for audio files and RSS feed Free tier: 10GB storage, unlimited egress Email Service - SMTP or email service for notifications

Required Community Nodes: Cloudflare R2 Storage** (n8n-nodes-cloudflare-r2-storage) Install via: Settings → Community Nodes → Install Search for: n8n-nodes-cloudflare-r2-storage Important: Install this BEFORE importing the workflow

Optional: Custom domain for podcast feed URLs Podcast artwork (3000x3000px recommended)

📦 What's Included

This workflow package includes: Complete n8n workflow JSON (ready to import) Comprehensive setup guide Architecture documentation Configuration templates Credentials setup instructions Testing and validation checklist RSS feed customization guide Troubleshooting documentation

🚀 Quick Start

Install community node (required): Go to Settings → Community Nodes → Install Search for: n8n-nodes-cloudflare-r2-storage Click Install and wait for completion Import workflow into your n8n instance Configure credentials: Google Cloud TTS API key Cloudflare R2 credentials (Access Key ID + Secret) SMTP email credentials Update Workflow Config node with your settings: R2 bucket name and public URL Podcast name and description Artwork URL Email recipient Test with a sample PDF to verify setup Add RSS feed URL to your podcast app

📊 Workflow Stats

Nodes:** 10 Complexity:** Medium Execution Time:** ~2-5 minutes per PDF (depends on length) Monthly Cost:** $0-20 (depending on usage and free tiers) Maintenance:** Minimal (set and forget)

🎨 Customization Options

Change TTS voice (20+ English voices available) Adjust speech speed and pitch Customize RSS feed metadata Add custom intro/outro audio Configure file retention policies Set up webhook triggers for remote submission

🔧 How it Works

User uploads PDF to n8n Text is extracted from PDF Text is sent to Google TTS API Audio file (.mp3) is generated Files uploaded to R2 storage: Original PDF Generated MP3 audio RSS feed is generated/updated with: Episode title (from PDF filename) Audio URL Duration and file size Publication date Rich HTML description RSS feed uploaded to R2 Email notification sent with episode details

💡 Pro Tips

Voice Selection:** Test different WaveNet voices to find your preferred style Batch Processing:** Process multiple PDFs by running workflow multiple times Quality vs Cost:** WaveNet voices sound better but cost more than Standard voices Storage Management:** Set up R2 lifecycle rules to auto-delete old episodes Custom Domains:** Use Cloudflare for custom podcast feed URLs

🔗 Related Workflows

PDF to Email Summary Document Translation to Audio Blog RSS to Podcast Multi-language Audio Generation

📧 Support & Feedback

For questions, issues, or feature requests: GitHub: PDF-to-Podcast---N8N Repository n8n Community Forum: Tag @devdutta Email: devjothi@gmail.com

📄 License

MIT License - Free to use, modify, and distribute

⭐ If you find this workflow useful, please share your feedback and star the workflow!