from ironpdf import *
import concurrent.futures
import uuid

# Instantiate Renderer
renderer = ChromePdfRenderer()

htmlStrings = ["<h1>Html#1</h1>", "<h1>Html#2</h1>", "<h1>Html#3</h1>"]

with concurrent.futures.ThreadPoolExecutor() as executor:
    futures = []
    for html in htmlStrings:
        futures.append(executor.submit(renderer.RenderHtmlAsPdf, html))

    # do something with each pdfDocument
    for future in concurrent.futures.as_completed(futures):
        pdf = future.result()
        pdf.SaveAs(f"{uuid.uuid4()}.pdf")
        # do something with each pdf