Scalable & Privacy‑First PDF Generation API | PDFBolt

7 min read Original article ↗

Transform templates, HTML, or URLs into professional PDFs with our AI‑powered API. Enterprise‑grade privacy, developer‑friendly tools, GDPR compliance.

How AI PDF Template Generation Works

Describe your PDF layout and attach references. AI creates your complete template.
Edit with AI assistance, review changes side-by-side before applying, then copy ready‑to‑use API code.

Start with a Prompt

Describe your layout, data fields, and styling. Attach reference files – PDFs, images, or code.

AI Generates Code & Data

AI creates a complete HTML/CSS template with Handlebars variables and sample data.

Edit with AI Assist

Request changes – layout, fields, styling. AI handles the code updates. Iterate until satisfied.

Review & Accept

See what changed in diff view. Compare PDF output side by side, then accept or reject – full control.

One-Click Code Integration

Copy ready-to-use code snippets in your language. Integrate in minutes.

Generate Template with AI

5 generations left

Describe the template you want to create. Be specific about layout, styling, and data fields.

0 / 10,000 characters

Drag & drop, click to browse, or paste (Ctrl+V)

PDF, PNG, JPG, JPEG, SVG, TXT, HTML, HTM, CSS, JS, JSON (max 5 files, 5 MB total)

Quick HTML Preview

Real PDF Preview

Invoice Template Preview

Quick HTML Preview

Real PDF Preview

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<link href="https://fonts.googleapis.com/css2?family=Inter&display=swap" rel="stylesheet">

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body { font-family: Inter, sans-serif; }

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.invoice-title { color: #0C8AE5; font-size: 48px; }

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.billing-section { display: flex; gap: 30px; }

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.billing-column { border-left: 3px solid #0C8AE5; }

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.items-table { background: #0C8AE5; color: white; }

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.total-final { background: #0C8AE5; }

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<div class="logo">{{company.logo}}</div>

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<div class="invoice-title">INVOICE</div>

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<div class="invoice-meta">

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<p>Invoice No: {{invoice_number}}</p>

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<p>Issue Date: {{issue_date}}</p>

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<div class="billing-section">

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<div class="billing-column">

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<p>{{company.name}}</p>

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<div class="billing-column">

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<p>{{client.name}}</p>

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<table class="items-table">

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<tr><td>{{description}}</td><td>{{total}}</td></tr>

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<div class="totals-row">Subtotal: {{subtotal}}</div>

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<div class="totals-row">Tax: {{tax_amount}}</div>

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<div class="totals-row total-final">Total: {{total}}</div>

Invoice Template Preview

This will use

1 AI generation. Your template and sample data will be updated based on your instructions.

Describe what you want to change:

Drag & drop, click to browse, or paste (Ctrl+V)

PDF, PNG, JPG, JPEG, SVG, TXT, HTML, HTM, CSS, JS, JSON (max 5 files, 5 MB total)

Before

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body { font-family: Inter; }

6

.invoice-title { color: #1e40af; }

7

.header { padding: 20px; }

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.billing-section { margin: 30px 0; }

9

.items-table { background: #1e40af; }

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.total { background: #1e40af; }

After

5

body { font-family: Inter; }

6

.invoice-title { color: #145E6D; }

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.header { padding: 20px; }

8

.billing-section { margin: 30px 0; }

9

.items-table { background: #145E6D; }

10

.total { background: #145E6D; }

11

.qr-code { display: flex; }

12

.qr-label { color: #6b7280; }

Before (Current)

Before (Current)

After (AI-edited)

After (AI-edited)

Quick HTML Preview

Real PDF Preview

4

<link href="https://fonts.googleapis.com/css2?family=Inter&display=swap" rel="stylesheet">

6

body { font-family: Inter, sans-serif; }

7

.invoice-title { color: #0C8AE5; font-size: 48px; }

8

.billing-section { display: flex; gap: 30px; }

9

.billing-column { border-left: 3px solid #0C8AE5; }

10

.items-table { background: #0C8AE5; color: white; }

11

.total-final { background: #0C8AE5; }

16

<div class="logo">{{company.logo}}</div>

17

<div class="invoice-title">INVOICE</div>

19

<div class="invoice-meta">

20

<p>Invoice No: {{invoice_number}}</p>

21

<p>Issue Date: {{issue_date}}</p>

23

<div class="billing-section">

24

<div class="billing-column">

26

<p>{{company.name}}</p>

28

<div class="billing-column">

30

<p>{{client.name}}</p>

33

<table class="items-table">

35

<tr><td>{{description}}</td><td>{{total}}</td></tr>

39

<div class="totals-row">Subtotal: {{subtotal}}</div>

40

<div class="totals-row">Tax: {{tax_amount}}</div>

41

<div class="totals-row total-final">Total: {{total}}</div>

Invoice Template Preview

API Integration: Invoice

Use the following code examples to generate PDFs using this template through our API.

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const fs = require('fs'); async function generatePdf() { const response = await fetch('https://api.pdfbolt.com/v1/direct', { method: 'POST', headers: { "API-KEY": "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX", "Content-Type": "application/json" }, body: JSON.stringify({"templateId":"your-template-id","templateData":{"invoice_number":"INV-2026-0112","issue_date":"January 15, 2026","due_date":"February 15, 2026","company":{"name":"Creative Studio Co.","email":"[email protected]"},"client":{"name":"Green Leaf Cafe","email":"[email protected]"},"items":[{"description":"Logo Design","quantity":1,"unit_price":"350.00","total":"350.00"},{"description":"Business Card Design","quantity":1,"unit_price":"120.00","total":"120.00"},{"description":"Brand Style Guide","quantity":1,"unit_price":"170.00","total":"170.00"},{"description":"Social Media Graphics","quantity":5,"unit_price":"40.00","total":"200.00"}],"currency":"$","subtotal":"840.00","tax_rate":"10","tax_amount":"84.00","total":"924.00","qr_code_data":"https://pay.creativestudio.co/INV-2026-0112"}}) }); if (!response.ok) { const errorText = await response.text(); throw new Error(`HTTP ${response.status} - ${errorText}`); } const pdfBuffer = await response.arrayBuffer(); fs.writeFileSync('pdfbolt_example.pdf', Buffer.from(pdfBuffer)); console.log('PDF generated successfully'); } generatePdf().catch(console.error);

Close

Seamless PDF API Integration

Direct and sync endpoints for instant PDF generation, async for high-volume batch processing.
Copy production‑ready code examples and start generating professional PDFs instantly.

const fs = require('fs');

async function generatePdf() {
    const response = await fetch('https://api.pdfbolt.com/v1/direct', {
        method: 'POST',
        headers: {
            'API-KEY': 'XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX',
            'Content-Type': 'application/json'
        },
        body: JSON.stringify({
            templateId: 'your-template-id',
            templateData: {
                client_name: 'John Doe',
                invoice_number: 'INV-001',
                total_amount: '$299.99',
                line_items: [
                    { description: 'Web Development', unit_price: '$200.00' },
                    { description: 'Design Services', unit_price: '$99.99' }
                ]
            }
        })
    });
    
    if (!response.ok) {
        const errorText = await response.text();
        throw new Error(`HTTP ${response.status} - ${errorText}`);
    }
    
    const pdfBuffer = await response.arrayBuffer();
    fs.writeFileSync('invoice.pdf', Buffer.from(pdfBuffer));
    console.log('PDF generated successfully');
}

generatePdf().catch(console.error);

Automation Platform Integrations

Integrate PDFBolt with your favorite automation tools – Zapier, Make, n8n, and more.
Automate PDF generation using visual workflows with minimal setup.

Why Choose PDFBolt

Effortless template creation. Professional PDF generation with developer-friendly integration.
High‑quality results, strict data privacy, and proven reliability for projects of any scale.

AI-Powered Templates

Let AI handle the code. Describe what you need, attach reference files, and create or edit templates effortlessly. Just review and accept the changes – AI does the heavy lifting.

Pixel-Perfect PDF Quality

Chrome-powered engine for pixel‑perfect PDFs – for screen or print. Supports PDF/X compliance, CMYK conversion, and ICC color profiles for professional prepress output.

Developer-Friendly Integration

Built for developers, our REST API ensures smooth integration, easy debugging, and transparent logs in the admin dashboard. Choose async or sync requests to fit your workflow.

Transparent and Flexible Billing

Enjoy competitive, flexible pricing with monthly plans. Benefit from transparent billing, usage notifications, and an optional overage system for uninterrupted service.

Infinite Scalability

Designed for high demand with 99.9% uptime SLA. Whether you're processing a few PDFs or millions, we’ve got the reliability to handle any workload.

Total Privacy & GDPR Compliance

Privacy comes first. Every conversion is performed in a private Chrome instance on our EU‑based servers. We are fully GDPR compliant to protect your data.

Powerful Dashboard

Everything you need to manage and monitor your PDF generation with enterprise‑grade tools and real‑time insights.

PDF Generation Playground

Zero-code API testing. Test PDF generation from URLs, HTML content, or templates with real-time configuration and instant preview.

PDFBolt PDF generation playground for testing URL to PDF, HTML to PDF, and templates with live preview and parameter configuration

Trusted by Developers Worldwide

See how teams save time and reduce complexity with our developer‑first PDF solution.

"It has a very intuitive User Interface and easy to use API with a great documentation. What's best, that the support is super fast and even feature requests are discussed and implemented in just a couple of days. It helps us to create individualised PDF gift cards both for digital use as well as print production on the base of modern HTML / CSS."

David Bernhard

David Bernhard

CTO at bon-bon.de

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"Amazingly, the owner personally helped solve the issues I was having creating an exported lesson plan with hyperlinks and complex styling. This is a great piece of software. But more importantly, it’s the people behind a product that truly make a company great. His willingness to support my project without payment is truly unique – a rare product and a rare individual. This product just works. Thank you, PDFBolt!"

Robert Reich-Storer

Robert Reich-Storer

Owner of Rhythmstix and Assessify

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"There's a lot of products that convert to PDF out there, but this one stood out to me, because the output quality is good, it's very easy to use, and pay per use. I also love the interactive API documentation, my request just worked out of the box in my app. And of course the focus on privacy, which is important when working with GDPR data. (...) PDFBolt just works, so I can focus on the business logic."

Malte Bartels

Malte Bartels

Cloud Engineer

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Simple and Transparent Pricing

Choose a plan that fits your needs. Upgrade seamlessly as your business grows.

Free

100 documents / month

All customization options

Get Started

Basic

2 000 documents / month

All customization options

10 AI template generations / month

Get Started

Growth

10 000 documents / month

All customization options

50 AI template generations / month

Print production (PDF/X, CMYK)

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Enterprise

50 000 documents / month

All customization options

150 AI template generations / month

Print production (PDF/X, CMYK)

We create custom templates for you

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Frequently Asked Questions

Got questions? We've got answers.
Learn about our PDF generation API – template features, free plan, and data privacy.

Safely Generate PDFs from
Templates, HTML & URLs

Get started with 100 document conversions per month – no credit card required.
Enjoy fast, secure, and GDPR‑compliant PDF generation in seconds.

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