HTML to PDF API
Simplifying PDF Generation from HTML
Start generating PDFs from HTML in just 3 steps:
- Create a TemplateTo account.
- Create an API key in the UI.
- Post HTML to the url endpoint: `api.templateto.com/render/pdf/fromhtml`
We think thats about as easy as HTML-to-PDF generation gets.
Our conversion API allows you to input your HTML and CSS code, including intricate HTML PDF templates, and our system handles the conversion efficiently. This process ensures your PDFs maintain the intended formatting and layout, crucial for both digital and print purposes.
Get Started with a Free Trial
Code Examples to get you up and running
Examples
Below you can see examples of how to use the TemplateTo PDF generation API with a number of different programming languages including Javascript, C#, Ruby, Python and more.
Select the tab of your languages name to see the example
Why use a HTML to PDF API
Simple and fast
You could build your own solution, this requires programmers and infrastructure as well as taking time. If HTML to PDF conversion isnt part of your core business. Then using a HTML PDF API is by far the easiest and most scalable option. This works by paying for access to an API, you use this API by sending it HTML that you want converted to PDF, and the API returns the PDF file to you.
Since its an API you can just call it using any HTTP client, so it works with all programming languages (We have many starter examples above).
Html to PDF APIs that give you the advantage
Benefits
- Efficiency: Super fast HTML to pdf conversion without compromising quality.
- Scalability: Handle large volumes of conversions effortlessly.
- Flexibility: Powerful expression language.
- Customization: Use templates to create personalized PDF documents.
- Support: Access comprehensive documentation and a dedicated support team.
- Integration: See examples above for how to integrate with some programming languages.
Answering Your Questions
FAQ
What is the conversion to PDF API?
Our API is a tool that allows you to convert HTML into PDF files using a simple API endpoint. It supports various HTML and CSS standards to ensure your generated document is accurately rendered.
How do I use the APIs?
To use the API, create a TemplateTo account, generate an API key, and post your HTML to the provided endpoint. Detailed examples and documentation are available to help you get started.
Can I customize the PDFs?
Yes, you can customize the PDFs by creating templates and injecting data into them. This allows for the creation of personalized pdf files, such as reports, invoices, and more.
What programming languages are supported?
Our API supports integration with multiple programming languages, including JavaScript. We provide examples for various languages in our documentation, see below.
Is there a limit to the number of conversions?
Our system is designed to handle both single and large batch conversions. Specific limits may apply based on your subscription plan.
Do you support dynamic data?
Not currently from the HTML generation endpoint, we do support dynamic data and data filters via our template builder.
Do your apis follow standards?
Yes, our apis follow the restful standards, so you can easily follow the Url structure.
What other APIs do you offer?
We also have a template generation endpoint, you can use our template builder to easily create your templates and then generate them on demand with dynamic data.
Explore our resources for more detailed information on using our APIs and enhancing your document generation process.
Ready to dive in?
Start your free trial today.
Generate multiple documents and merge data in
minutes without extensive development knowledge.
HTML Templates to PDFs
Customized Solutions for Your Needs
TemplateTo extends its capabilities beyond simple HTML to PDF conversion. Our platform allows you to create and manage HTML templates, offering a dynamic way to produce customized PDFs. These templates can be designed to suit various requirements, ensuring flexibility and personalization in your document creation process.
What's more, our system supports data injection into these templates. You can seamlessly pass in data, ensuring that each PDF output generated from the template is tailored to specific information needs. This feature is particularly useful for generating reports, invoices, and personalized pdf files, where each PDF needs to be unique and data-driven.
Comprehensive Support
From Docs to Done For You.
No matter what your support needs, we are here to help.
Extensive documentation
Our docs site is full of resources and walks you through how to get started and what each of our components can do for you as well as tips and examples to get you up to speed quickly.
We have API documentation as well as support documentation. Our Html to PDF api is very simple, The examples on this page will help you get started today.
Our Support Desk
Our support desk is only an email away, our team will work with you on any issues you run into.
We aim to respond as quickly as possible. We understand that document generation makes up a core part of most business flows, with that in mind we do our best to get you moving as quickly as we can.
Done For You
We will help you create your templates and get your integrations up and running. Just reach out to support.
If you would rather not have to create your templates; we can arrange for a full done for you service, where you give us your requirements, examples of the dynamic data you work with and we will build your templates for you.
We are also pretty handy when it comes to Zapier and N8N, so if you want, we can also get your integrations set up for you.
Built for production scale
Synchronous when users are waiting. Async with webhooks when they're not.
Two modes share the same templates, the same data format, the same engine. Pick the one that fits the workload — no rewrites when you switch.
- No polling loops
- Get notified the moment a job completes. We POST to your webhook with the job ID, status, and result URL — no status endpoint to hammer on a timer.
- No long-running HTTP connections
- Fire off a request, get a job ID back immediately, and carry on. Friendly to serverless functions, edge runtimes, and any environment with execution-time limits.
- Render hundreds in the background
- Bulk operations — month-end invoices, statement runs, mass exports — don't tie up your UI or your worker pool. Queue them up, walk away, get paged when they're done.
- Upload directly to your own storage
- Pass a pre-signed URL and we PUT the rendered document straight into your bucket — S3, GCS, Azure Blob, Cloudflare R2, Backblaze B2, DigitalOcean Spaces, Wasabi. Combine with webhooks for a fully push-based pipeline. Zero polling, zero downloads.
The same render flow, but pass webhookUrl
and (optionally) outputPresignedUrl
to switch from blocking response to push delivery:
// Start an async render with webhook + direct upload to YOUR storage
const response = await fetch(
'https://api.templateto.com/render/async/pdf/fromhtml?' +
new URLSearchParams({
webhookUrl: 'https://your-app.com/webhooks/templateto',
outputPresignedUrl: yourPresignedS3Url
}),
{
method: 'POST',
headers: {
'X-Api-Key': 'your-api-key',
'Content-Type': 'application/json'
},
body: JSON.stringify({ base64HtmlString })
}
);
// 202 Accepted comes back immediately. The PDF lands in your bucket
// when ready, and we POST your webhook with the job result.Read the full async API in our async rendering announcement or jump straight to the developer docs.
Ready to dive in?
Start your free trial today.
Generate multiple documents and merge data in
minutes without extensive development knowledge.