Convert HTML to PDF using REST API in Python

As a Python developer, you can easily convert your HTML files to PDF documents programmatically on the cloud. Such conversion can be helpful in keeping records or sharing HTML files in a portable form. In this article, you will learn how to convert HTML to PDF documents using a REST API in Python.

The following topics shall be covered in this article:

HTML to PDF Conversion REST API and Python SDK

For converting HTML files to PDF, I will be using the Python SDK of GroupDocs.Conversion Cloud API. It allows you to convert your documents and images of any supported file format to any format you need. You can easily convert between over 50 types of documents and images such as Word, PowerPoint, Excel, PDF, HTML, CAD, raster images, etc.

You can install GroupDocs.Conversion Cloud to your Python project using the following command in the console:

pip install groupdocs_conversion_cloud

Please get your Client ID and Client Secret from the dashboard before you start following the steps and available code examples. Once you have your ID and secret, please add in the code as shown below:

Convert HTML to PDF using REST API in Python

You can convert your HTML file into PDF documents by following the simple steps mentioned below:

Upload the Document

Firstly, upload the HTML file to the cloud using the code example given below:

As a result, the uploaded HTML file will be available in the files section of your dashboard on the cloud.

Convert HTML to PDF in Python

You can easily convert HTML to PDF documents programmatically by following the steps given below:

  • Create an instance of ConvertApi
  • Create an instance of the ConvertSettings
  • Set the HTML file path
  • Assign “pdf” to the format
  • Provide the output file path
  • Define PdfConvertOptions if required
  • Optionally set various properties such as dpi, margin_top, margin_left, fit_window, etc.
  • Create ConvertDocumentRequest with ConvertSettings
  • Get results by calling the convert_document() method with ConvertDocumentRequest

The following code example shows how to convert your HTML file to a PDF document using a REST API.

Convert HTML to PDF using REST API in Python

Convert HTML to PDF using REST API in Python

Download the Converted File

The above code sample will save the converted PDF file on the cloud. You can download it using the following code sample:

Convert HTML to PDF and Add Watermark

You can convert HTML to PDF documents and add watermarks to converted documents programmatically by following the steps given below:

  • Create an instance of the ConvertApi
  • Create an instance of the ConvertSettings
  • Set the HTML file path
  • Assign “pdf” to the format
  • Provide the output file path
  • Create an instance of the WatermarkOptions
  • Set Watermark Text, Color, Width, Height, etc.
  • Define the PdfConvertOptions and assign WatermarkOptions
  • Create ConvertDocumentRequest with ConvertSettings
  • Convert by calling the convert_document() method with ConvertDocumentRequest

The following code example shows how to convert an HTML file to a PDF document and add a watermark to the converted PDF document using a REST API in Python. Please follow the steps mentioned earlier to upload and download files.

Convert HTML to PDF and Add Watermark

Convert HTML to PDF and Add Watermark

HTML to PDF Conversion without using Cloud Storage

You can convert HTML to PDF documents without using cloud storage by following the steps given below:

  • Create an instance of the ConvertApi
  • Create ConvertDocumentDirectRequest and pass requested document format and the input file path
  • Get results by calling the convert_document_direct_()_ method with ConvertDocumentDirectRequest
  • Optionally, save the output file to the local path using shutil.move() method

The following code example shows how to convert an HTML file to a PDF document without using cloud storage. You will pass the input file in the request body and receive the output file in the API response.

Convert HTML to PDF and Download Directly

You can easily convert HTML to PDF documents programmatically by following the steps given below:

  • Create an instance of ConvertApi
  • Create an instance of the ConvertSettings
  • Set the HTML file path
  • Assign “pdf” to the format
  • Set “None” to the output path
  • Create ConvertDocumentRequest with ConvertSettings
  • Get results by calling the convert_document_download() method
  • Optionally, save the output file to the local path using shutil.move() method

The following code example shows how to convert an HTML file to a PDF document and download it directly using a REST API in Python. The API shall return the converted PDF file in response. Please follow the steps mentioned earlier to upload a file.

Try Online

Please try the following free online HTML to PDF conversion tool, which is developed using the above API. https://products.groupdocs.app/conversion/html-to-pdf

Conclusion

In this article, you have learned how to convert HTML files to PDF documents using Python on the cloud. You have also learned how to convert HTML files to PDF documents without using cloud storage programmatically. Moreover, you have learned how to add a watermark to the converted PDF documents using Python. This article also explained how to programmatically upload the HTML file to the cloud and then download the converted PDF file from the cloud. You can learn more about GroupDocs.Conversion Cloud API using the documentation. We also provide an API Reference section that lets you visualize and interact with our APIs directly through the browser. In case of any ambiguity, please feel free to contact us on the forum.

See Also