using IronPdf;
using System.Collections.Generic;
using System.Threading.Tasks;

// Instantiate Renderer
var renderer = new ChromePdfRenderer();

var htmlStrings = new List<string> { "<h1>Html#1</h1>", "<h1>Html#2</h1>", "<h1>Html#3</h1>" };

Parallel.ForEach(htmlStrings, (html) =>
{
    var pdf = renderer.RenderHtmlAsPdf(html);
    // do something with each pdfDocument
});

Imports IronPdf
Imports System.Collections.Generic
Imports System.Threading.Tasks

' Instantiate Renderer
Private renderer = New ChromePdfRenderer()

Private htmlStrings = New List(Of String) From {"<h1>Html#1</h1>", "<h1>Html#2</h1>", "<h1>Html#3</h1>"}

Parallel.ForEach(htmlStrings, Sub(html)
	Dim pdf = renderer.RenderHtmlAsPdf(html)
	' do something with each pdfDocument
End Sub)