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Generate PDF Invoice From HTML Template - Python

PDF from HTML Template sample in Python demonstrating ‘Generate PDF Invoice From HTML Template’
import os
import requests # pip install requests

# The authentication key (API Key).
# Get your own by registering at
API_KEY = "***********************************************"

# Base URL for Web API requests

# --HTML Template ID--
# Please follow below steps to create your own HTML Template and get "templateId". 
# 1. Add new html template in
# 2. Copy paste your html template code into this new template. Sample HTML templates can be found at ""
# 3. Save this new template
# 4. Copy it’s ID to clipboard
# 5. Now set ID of the template into “templateId” parameter

# HTML template using built-in template
# see
template_id = 2

# Data to fill the template
file_read = open(".\\invoice_data.json", mode='r')
TemplateData =

# Destination PDF file name
DestinationFile = ".\\result.pdf"

def main(args = None):
    GeneratePDFFromTemplate(template_id, TemplateData, DestinationFile)

def GeneratePDFFromTemplate(template_id, templateData, destinationFile):
    """Converts HTML to PDF using Web API"""

    data = {
        'templateData': templateData,
        'templateId': template_id

    # Prepare URL for 'HTML To PDF' API request
    url = "{}/pdf/convert/from/html?name={}".format(

    # Execute request and get response as JSON

    response =, data=data, headers={ "x-api-key": API_KEY })
    if (response.status_code == 200):
        json = response.json()

        if json["error"] == False:
            #  Get URL of result file
            resultFileUrl = json["url"]            
            # Download result file
            r = requests.get(resultFileUrl, stream=True)
            if (r.status_code == 200):
                with open(destinationFile, 'wb') as file:
                    for chunk in r:
                print(f"Result file saved as \"{destinationFile}\" file.")
                print(f"Request error: {response.status_code} {response.reason}")
            # Show service reported error
        print(f"Request error: {response.status_code} {response.reason}")

if __name__ == '__main__':
    "invoice_id": "1234567",
    "invoice_date": "April 30, 2016",
    "invoice_dateDue": "May 15, 2016",
    "paid": false,
    "issuer_name": "Acme Inc",
    "issuer_company": "Acme International",
    "issuer_address": "City, Street 3rd",
    "issuer_email": "",
    "issuer_website": "",
    "client_name": "Food Delivery Inc.",
    "client_company": "Food Delivery International",
    "client_address": "New York, Some Street, 42",
    "client_email": "",
    "items": [
            "name": "Setting up new web-site",
            "price": 250
            "name": "Website Content Addition",
            "price": 700
            "name": "Database Setup",
            "price": 200
            "name": "Record Digitalization",
            "price": 1800
            "name": "Cloud Storage",
            "price": 500
            "name": "Short Messages",
            "price": 35
            "name": "Search Engine Optimization",
            "price": 200
            "name": "Priority Support",
            "price": 75
            "name": "Configuring mail server and mailboxes",
            "price": 50
    "tax": 0.065,
    "discount": 0.01,
    "note": "Thank You For Your Business!"
} Web API: the Web API with a set of tools for documents manipulation, data conversion, data extraction, splitting and merging of documents. Includes image recognition, built-in OCR, barcode generation and barcode decoders to decode bar codes from scans, pictures and pdf.

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Download Source Code (.zip)

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