HTML into PDF APIs for automating document rendering are highly multifunctional. You can use them to programmatically create reports, retrieve the converted PDFs, manage rendering queues, and complete other actions. Each of these activities is performed through an API request. Requests are the backbone of any API regardless of its functionality.

The operation of Inkit Render is also based on API requests. That’s why we decided to clarify what basic requests underlie its functionality and how to use them. Keep reading to learn the main types of requests provided in the HTML into PDF API by Inkit.

Why Choose APIs to Generate HTML to PDF?

An HTML into PDF API is not the only way to convert HTML to PDF. You can also generate HTML to PDF manually through web services, upload batches, or invest in custom software development. So why do most businesses prefer HTML into PDF APIs over other solutions?

A PDF creator API is a shortcut to quickly obtain high-quality automated rendering services. You can configure it and start rendering URLs to PDFs right away. In addition to easy integration, APIs have other solid advantages:

  • Interoperability. HTML code into PDF APIs are designed to smoothly operate with software written in most popular programming languages, including Java, JS, C#, Python, PHP, Ruby, and Node. Therefore, you can layer website to PDF rendering functionality into existing systems with minimum effort and configurations.
  • Efficiency. Webpage to PDF conversion is fully automated, which speeds up the work of teams using it. Instead of manual HTML to PDF conversion or batch processing, they generate HTML to PDF automatically.
  • Cost-effectiveness. HTML into PDF API integration is cheaper than custom software development. Besides, there are some free HTML to PDF converter API features you can use for basic rendering tasks. Inkit also has a free version to generate HTML to PDF in the test mode.
  • Scalability. Since rendering solutions are provided by a third party, you can use as much storage or capabilities as you need.
  • Delegated maintenance. When you use APIs, software providers are in charge of servers or cloud storage. They also upgrade the software, so you don’t have to spend time and money on that.

Finally, HTML into PDF APIs perform many types of requests. It allows adding multiple valuable features to your existing software. For example, you can enable users to filter the files after the website to PDF conversion, delete the generated content, etc.

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What Is an API Request and How HTML to PDF API Works?

API requests are involved in almost everything you do on the web. They happen when developers add an endpoint to a URL and initiate a call to the server. An endpoint is a touchpoint of interaction between the integrated API and the system it is connected to. It enables the API to access necessary software resources and complete the conversion or any other action. For example, when you select the PDF page size and hit the rendering button, an API request occurs.

To perform its functions, an HTML into PDF API completes different requests. Developers choose what action they need to perform and initiate a request. The selection of request types depends on the functionality of the HTML into PDF API solutions. Apart from initial rendering software capabilities, user roles are another factor to consider. Only users with access permission can make requests.

Some advanced HTML page to PDF converters like Inkit Render allow configuring access permissions. You can choose from over two dozen user roles to ensure more granular access to the software. It will enable password-protecting confidential information handled by the HTML into PDF API and enhance team management.

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Basic HTML into PDF API Requests Explained

Writing this article, we relied on Inkit Render’s functionality. Other APIs may be missing some of these requests and have more limited capabilities.

Render completes five basic requests that enable you to manage document conversion.


The Create request allows you to convert HTML files to PDF.  Here you need to indicate the desired parameters of the final PDF, including width and height. To run the Create request, you also need to enter the API key and content type.

HTML into PDF API Requests


The Retrieve request allows you to retrieve data about the conversion. Metadata is information about the generated PDF files and the conversion itself. It may be necessary to learn when the conversion happened or what user completed it. For example, you can go to Render and check who has rendered the files when you have some data leakage concerns.

Retrieve PDF

The Retrieve PDF request allows you to retrieve the generated PDF file. With this command, you can download the result of the web browser HTML file to PDF conversion.

This request is useful in many cases. For example, you can retrieve the converted files to test the HTML into PDF API. Another case is when you need to send a PDF through an email or print it for offline delivery.



The List request allows you to get the list of renders. For example, you can view all the renders with the completed status or the renders belonging to a specific folder. By returning a list of renders, this request simplifies the conversion management process. You can quickly find a specific render, see what web page to PDF conversions have been completed, arrange the renders, and more.


The Delete request allows you to delete the previously completed renders. You remove the response code and clear the tool. It helps to clean your systems from unnecessary conversions.


Note that apart from entering the values of rendering parameters and the API key, you will need to select the programming language. Render automatically changes the code snippet to complete the API request and generate HTML to PDF based on the chosen option.

This simplifies the user experience in Render since you can customize all the requests based on your software needs. It also makes Inkit Render suitable for use with solutions written in the most widespread programming languages.

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Use Inkit Render to Generate HTML to PDF

Render is an API provided by Inkit to generate HTML to PDF. Based on your needs, you can choose among the free, pro, or other HTML to PDF converter API versions. It all depends on the functionality.

The basic requests of Render enable you to create, retrieve, and delete files after you generate PDFs. You can also configure user roles and permissions to limit access to Render’s capabilities. It allows creating user teams and simplifies permission management.

Would you like to test Render? Contact us to get the free HTML to PDF converter API demo.

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