How to convert an HTML Document to PNG Array in Python

Today we are going to create a means by which we may fully render all the elements in an HTML document, and convert this render into a set of PNG images. If this sounds complicated, don’t be alarmed. We are not going to be doing this in the normal, time-consuming manner. Rather, we will be harnessing an API to do all the busy work. Start with this installation command:

pip install cloudmersive-convert-api-client

Following that, call convert_document_html_to_png, providing your HTML file.

from __future__ import print_function
import time
import cloudmersive_convert_api_client
from cloudmersive_convert_api_client.rest import ApiException
from pprint import pprint
# Configure API key authorization: Apikey
configuration = cloudmersive_convert_api_client.Configuration()
configuration.api_key['Apikey'] = 'YOUR_API_KEY'
# Uncomment below to setup prefix (e.g. Bearer) for API key, if needed
# configuration.api_key_prefix['Apikey'] = 'Bearer'
# create an instance of the API class
api_instance = cloudmersive_convert_api_client.ConvertDocumentApi(cloudmersive_convert_api_client.ApiClient(configuration))
input_file = '/path/to/file' # file | Input file to perform the operation on.
try:
# Convert HTML document file to PNG image array
api_response = api_instance.convert_document_html_to_png(input_file)
pprint(api_response)
except ApiException as e:
print("Exception when calling ConvertDocumentApi->convert_document_html_to_png: %s\n" % e)

Now the API will render everything in the file, including all the complicated stuff, like JavaScript and CSS elements. Wait a moment and it will send back your PNGs.