# PDFly — Universal PDF Generator & REST API

> PDFly is a free universal PDF generation platform and REST API by 3idhMind. It allows developers to generate PDFs from HTML/Text in 70+ languages (including Hindi, Arabic RTL, Chinese, Japanese, Korean) with 15 professional templates, batch processing (up to 5 documents per call), and client-side image-to-PDF conversion for 25+ formats.

## Key Capabilities

- **70+ Languages & Fonts:** Native support for Devanagari (Hindi, Marathi, Nepali), Arabic/Urdu/Persian (RTL), CJK (Chinese, Japanese, Korean), Cyrillic, Greek, Thai, Bengali, Tamil, Telugu, and Hinglish.
- **HTML to PDF REST API:** Convert raw HTML with CSS styling to PDF via a single POST request.
- **Client-Side Image to PDF:** Convert 100+ images (JPG, PNG, WebP, HEIC, RAW formats like CR2, NEF, DNG) directly in browser using Canvas API with zero server upload.
- **Batch PDF Generation:** Process up to 5 documents in a single API request with parallel rendering.
- **15 Built-in Templates:** Minimal, Professional, Creative, Modern, Classic, Elegant, Bold, Tech, Academic, Corporate, Artistic, Clean, Vibrant, Dark, Light.

## Documentation & API Endpoints

- [Home Page](https://pdfly.3idhmind.in): Overview and live interactive PDF generator.
- [API Documentation](https://pdfly.3idhmind.in/docs): Complete REST API guide, headers, payload formats, and code examples.
- [Text to PDF](https://pdfly.3idhmind.in/text-to-pdf): Convert formatted text/HTML to PDF.
- [Image to PDF](https://pdfly.3idhmind.in/image-to-pdf): Convert single or multiple images to PDF.
- [Pricing](https://pdfly.3idhmind.in/pricing): Free tier details (no credit card required).
- [Blog](https://pdfly.3idhmind.in/blog): Technical tutorials on PDF generation, AEO, Next.js integration, and multilingual rendering.
- [Blog: wkhtmltopdf Migration Guide](https://pdfly.3idhmind.in/blog/wkhtmltopdf-deprecated-migration-guide-2026): Definitive guide to migrating from deprecated wkhtmltopdf to Puppeteer, Playwright, Gotenberg, or PDFly REST API.
- [Blog: Invoice PDF at Scale](https://pdfly.3idhmind.in/blog/generate-invoice-pdf-nodejs-python-at-scale): Production-ready Node.js (BullMQ) and Python (Celery) invoice PDF generation with queue-based architecture.
- [Blog: Puppeteer vs Playwright](https://pdfly.3idhmind.in/blog/puppeteer-vs-playwright-pdf-generation-2026): Benchmark comparison of Puppeteer vs Playwright for PDF generation, including cold starts, memory, ARM64, and serverless deployment.

## REST API Reference

Base URL: `https://pdfly.3idhmind.in/api`
Authentication Header: `Authorization: Bearer YOUR_API_KEY`

### 1. Generate PDF
- **Endpoint:** `POST /generate-pdf`
- **Payload:**
```json
{
  "documents": [
    { "title": "Invoice #101", "content": "<h1>Invoice #101</h1><p>Amount: ₹5,000</p>" }
  ],
  "template": "professional",
  "page_size": "A4",
  "language": "auto"
}
```

### 2. Convert Images to PDF
- **Endpoint:** `POST /images-to-pdf`
- **Payload:**
```json
{
  "images": ["data:image/jpeg;base64,..."],
  "page_size": "A4",
  "orientation": "portrait"
}
```

## JavaScript / Node.js Quickstart

```javascript
const response = await fetch('https://pdfly.3idhmind.in/api/generate-pdf', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY'
  },
  body: JSON.stringify({
    documents: [{ title: 'Document', content: '<h1>Hello World</h1>' }],
    template: 'minimal',
    page_size: 'A4',
    language: 'auto'
  })
});
const data = await response.json();
console.log(data);
```

## Python Quickstart

```python
import requests

response = requests.post(
    'https://pdfly.3idhmind.in/api/generate-pdf',
    headers={'Authorization': 'Bearer YOUR_API_KEY'},
    json={
        'documents': [{'title': 'Report', 'content': '<h1>Monthly Report</h1>'}],
        'template': 'corporate',
        'page_size': 'A4'
    }
)
print(response.json())
```