Developer guide

Best HTML to PDF APIs in 2027: 6 Tools Compared for Developers

Choosing the best HTML to PDF API in 2027 comes down to more than conversion speed. Developers need accurate HTML and CSS rendering, JavaScript support, reliable processing, predictable pricing, and an API that integrates easily with their applications.

Whether you’re generating invoices, receipts, certificates, business reports, order summaries, or thousands of PDFs automatically, the right API can save development time and simplify your document-generation workflow.

In this guide, we’ll compare six HTML-to-PDF solutions, explain what to evaluate, and help you choose the right option for your project.

Published by CheapPDF, which is one of the options compared below.

Quick Comparison of the Best HTML to PDF APIs in 2027

The best option depends on your workload, technical requirements, and budget. Features and pricing can change, so verify each provider’s current documentation before deciding.

Quick comparison of HTML to PDF APIs
API or solution	Best for	Key consideration
CheapPDF (opens in a new tab)	Developers looking for an accessible HTML-to-PDF API	Verify rendering capabilities, pricing, and usage limits
PDFShift (opens in a new tab)	API-based HTML-to-PDF conversion	Evaluate CSS compatibility and conversion costs
PDF.co (opens in a new tab)	Broader PDF and document-processing workflows	Check which features your application actually needs
DocRaptor (opens in a new tab)	Advanced business document rendering	Evaluate layout requirements and pricing
APITemplate.io (opens in a new tab)	Template-driven document generation	Compare template functionality and flexibility
Self-hosted Chromium Not a hosted API	Teams wanting infrastructure control	Account for maintenance, hosting, and scaling

CheapPDF: An Accessible HTML to PDF API

CheapPDF is an HTML-to-PDF conversion service designed to help developers integrate PDF generation into their applications.

Instead of building and maintaining a complete browser-rendering system, developers can evaluate an API-based approach that fits into an existing application and document-generation workflow.

For developers who already generate invoices, reports, receipts, certificates, and other documents using HTML, a dedicated conversion API can simplify the process of turning that content into PDFs.

You can try it without code in the HTML to PDF converter, or read the HTML to PDF API reference.

Why consider CheapPDF?

A summary of what to weigh when evaluating it.

Why consider it

API-based conversion: Integrate HTML-to-PDF generation into an application’s existing workflow.
Developer-focused workflow: Generate PDFs from HTML-based layouts rather than manually constructing every document element.
Potentially lower operating overhead: Evaluate a managed conversion service instead of maintaining Chromium infrastructure.
Budget-conscious evaluation: Compare available pricing against alternative APIs and self-hosted solutions.
Flexible application use cases: Explore PDF generation for invoices, reports, receipts, certificates, and other HTML-based documents.

Best for: Developers looking for an accessible API-based approach to HTML-to-PDF conversion.

Explore CheapPDF (opens in a new tab) →

Who should consider CheapPDF?

CheapPDF is worth evaluating if you’re building a web application that needs to generate PDFs dynamically and want to compare an API-based service against managing your own rendering infrastructure.

For example, an application might generate an invoice after a purchase, create a report when a user requests one, or produce certificates automatically after a course is completed.

What should you test before choosing it?

Test the HTML and CSS features your documents depend on, including JavaScript execution if required, custom fonts, images, page breaks, and long tables. Verify request limits, supported file sizes, response times, error handling, and pricing for your expected conversion volume.

Example: convert HTML to PDF with one request

This is the request documented in the HTML to PDF API reference: one POST to /generate-pdf-public with your API key, a file name, the page size in pixels and the HTML. The PDF comes back base64-encoded in the JSON response. Keep the API key on the server.

curl -X POST https://www.cheap-pdf.com/generate-pdf-public \
  -F "apikey=YOUR_API_KEY" \
  -F "filename=invoice.pdf" \
  -F "width=800" \
  -F "height=1000" \
  --form-string "fileorhtmlorurl=<h1>Invoice #1001</h1>" \
  -o response.json

# The PDF is returned base64-encoded inside the JSON:
jq -r '.data.base64_pdf' response.json | base64 --decode > invoice.pdf

<?php
$ch = curl_init('https://www.cheap-pdf.com/generate-pdf-public');
curl_setopt_array($ch, [
    CURLOPT_POST           => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_TIMEOUT        => 60,
    CURLOPT_POSTFIELDS     => [
        'apikey'          => getenv('CHEAPPDF_API_KEY'),
        'filename'        => 'invoice.pdf',
        'width'           => 800,
        'height'          => 1000,
        'fileorhtmlorurl' => '<h1>Invoice #1001</h1>',
    ],
]);
$result = json_decode(curl_exec($ch), true);
curl_close($ch);

if (empty($result['success'])) {
    throw new RuntimeException($result['message'] ?? 'Conversion failed');
}
file_put_contents('invoice.pdf', base64_decode($result['data']['base64_pdf']));

API reference Get an API key Pricing and plans

Other HTML to PDF Options to Compare

Each option below is described in general terms. Check the provider’s own documentation for current features, limits and pricing.

PDFShift: A Dedicated HTML to PDF Conversion API

PDFShift is an option for developers who want to integrate HTML-to-PDF conversion through an API. Evaluate how accurately it renders your HTML, how it handles modern CSS, and whether its API limits and pricing fit your application.

What to evaluate

HTML/CSS compatibility
JavaScript support
Authentication and integration
Conversion limits and pricing
Performance under concurrent requests

Best for: Developers evaluating a dedicated API for converting HTML documents into PDFs.

Visit PDFShift (opens in a new tab) →

PDF.co: PDF Conversion and Document Processing

PDF.co offers a broader range of PDF and document-processing capabilities. This may be useful if an application requires more than HTML-to-PDF conversion. If conversion is the only requirement, compare the relevant features and total cost.

What to evaluate

HTML-to-PDF capabilities
Additional processing features
API limits and pricing
Integration requirements
Suitability for production

Best for: Applications that may need PDF conversion alongside other document-processing operations.

Visit PDF.co (opens in a new tab) →

DocRaptor: Advanced HTML to PDF Rendering

DocRaptor is worth considering when PDF layout fidelity is a major requirement. Business documents may need careful pagination, complex tables, headers, footers, and controlled page breaks. Evaluate it with representative files.

What to evaluate

Rendering capabilities
Pricing
Document limits
Performance

Best for: Teams evaluating a dedicated service for advanced document rendering.

Visit DocRaptor (opens in a new tab) →

APITemplate.io: Template-Based Document Generation

APITemplate.io is an option for teams that want to generate documents using reusable templates and automated workflows. If an application already produces complete HTML pages, consider whether a template-oriented workflow offers enough additional value.

What to evaluate

Template management
HTML/PDF workflow
Integrations
Pricing
Layout flexibility

Best for: Applications that benefit from reusable templates and automated document generation.

Visit APITemplate.io (opens in a new tab) →

Self-Hosted Chromium: Generate PDFs on Your Own Infrastructure

Developers can run Chromium on their own servers and use browser automation tools such as Puppeteer or Playwright to render pages into PDFs. This offers control over the rendering environment but requires browser-process management, memory monitoring, concurrency controls, timeouts, recovery, security updates, and scaling.

Best for: Engineering teams that want direct control over PDF-rendering infrastructure and can support its operational requirements.

What Makes a Good HTML to PDF API in 2027?

HTML and CSS compatibility

Test CSS Grid, Flexbox, tables, backgrounds, fonts, margins, and page breaks.

JavaScript rendering

Confirm support for dynamically generated content and waiting for rendering to complete.

Rendering accuracy

Check for missing images, incomplete fonts, clipped content, blank pages, broken tables, and misplaced page breaks.

Conversion speed

Measure repeated conversions and realistic concurrent workloads.

Scalability and concurrency

Evaluate throughput, request limits, queue behavior, timeouts, and recovery.

Pricing and total cost

Compare subscriptions, included conversions, overage fees, restrictions, hosting, and maintenance.

Security and data handling

Review encryption, authentication, retention, access controls, and handling of submitted HTML and PDF files.

Developer experience

Evaluate documentation, errors, integration examples, and maintainability.

How to Choose the Right HTML to PDF API

Small web application

Prioritize simple integration, predictable costs, and sufficient capacity.
PHP and Laravel

Evaluate HTTP integration, authentication, error handling, and examples. See our PHP and Laravel guides.
Node.js

Compare managed APIs with Puppeteer or Playwright, including self-hosting effort. See our Node.js guide.
Complex reports

Prioritize pagination, fonts, JavaScript, and rendering accuracy.
High-volume generation

Benchmark concurrency, throughput, recovery, and total cost.
Sensitive documents

Assess security, retention, and access controls.

HTML to PDF API vs. Self-Hosted Chromium

Managed API compared with self-hosted Chromium
Consideration	Managed API	Self-hosted Chromium
Initial setup	Typically simpler	Requires infrastructure setup
Browser maintenance	Generally handled by provider	Your responsibility
Infrastructure control	Depends on service	Greater control
Scaling	Depends on provider limits and plans	Your responsibility
Cost structure	API usage or subscription fees	Infrastructure and operating costs
Customization	Limited by API	Greater control over rendering environment

Neither approach is automatically better. A managed API can reduce infrastructure work, while self-hosting can make sense when control, customization, or workload economics justify the additional responsibility. Calculate the complete cost of each option before deciding.

How to Benchmark HTML to PDF APIs

To select a provider based on evidence, run the same tests against every shortlisted service.

Test documents

Simple invoice with logo and customer details.
Multi-page report containing tables.
Document using custom fonts and background images.
Page containing JavaScript-generated content.
Long document with repeated headers and controlled page breaks.

What to record

Successful conversion rate
Rendering accuracy
Median and high-percentile conversion times
Performance under concurrent load
Output file size
Monthly cost at expected volume

Use identical inputs wherever possible. Record provider-specific configuration needed to achieve correct results. Do not declare a winner based on one test or an unverified claim. Publish your methodology and results so readers can understand the comparison.

HTML to PDF API FAQ

What is the best HTML to PDF API in 2027?

The best API depends on document requirements, budget, rendering needs, and expected workload. Compare CheapPDF, PDFShift, PDF.co, DocRaptor, and APITemplate.io against representative documents before choosing a provider.

Can I convert HTML to PDF using an API?

Yes. An HTML-to-PDF API lets an application submit HTML for conversion and receive a PDF. The workflow depends on the provider's API and supported options.

Is an HTML to PDF API better than Puppeteer?

A managed API can reduce the work involved in operating browser-rendering infrastructure. Puppeteer gives developers control over Chromium automation but requires them to manage the environment when self-hosting. The better choice depends on expertise, workload, budget, and infrastructure requirements.

Which HTML to PDF API is best for PHP and Laravel?

Several services can be integrated into PHP and Laravel applications through HTTP requests. Compare documentation, authentication, rendering compatibility, error handling, and pricing. Test with the application's actual HTML templates.

How much does an HTML to PDF API cost?

Pricing varies by provider, plan, and conversion volume. Compare current prices, included usage, overage charges, and restrictions.

Can HTML to PDF APIs handle large documents?

Capabilities vary. Large documents may need more processing time and memory, especially with many images, complex layouts, or JavaScript-generated content. Test expected document sizes and concurrency before production use.

Final Verdict

The best HTML to PDF API in 2027 is the one that reliably produces the documents your application needs at a cost you can sustain.

CheapPDF is worth evaluating if you want an API-based approach to PDF generation. PDFShift, PDF.co, DocRaptor, and APITemplate.io are other options to compare, while self-hosted Chromium provides an alternative for teams that want to manage their own rendering infrastructure.

Do not choose based on marketing claims alone. Test your documents, compare current pricing, and evaluate performance under realistic conditions.

Looking for an HTML to PDF API for your application?

Explore CheapPDF to see whether it fits your document-generation workflow.

Explore CheapPDF

Quick Comparison of the Best HTML to PDF APIs in 2027

CheapPDF: An Accessible HTML to PDF API

Why consider CheapPDF?

Who should consider CheapPDF?

What should you test before choosing it?

Example: convert HTML to PDF with one request

Other HTML to PDF Options to Compare

PDFShift: A Dedicated HTML to PDF Conversion API

PDF.co: PDF Conversion and Document Processing

DocRaptor: Advanced HTML to PDF Rendering

APITemplate.io: Template-Based Document Generation

Self-Hosted Chromium: Generate PDFs on Your Own Infrastructure

What Makes a Good HTML to PDF API in 2027?

HTML and CSS compatibility

JavaScript rendering

Rendering accuracy

Conversion speed

Scalability and concurrency

Pricing and total cost

Security and data handling

Developer experience

How to Choose the Right HTML to PDF API

Small web application

PHP and Laravel

Node.js

Complex reports

High-volume generation

Sensitive documents

HTML to PDF API vs. Self-Hosted Chromium

How to Benchmark HTML to PDF APIs

Test documents

What to record

HTML to PDF API FAQ

Final Verdict

Looking for an HTML to PDF API for your application?

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