Program.cs

using blazor_in_container.Components;
using PuppeteerSharp;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
builder.Services.AddRazorComponents()
    .AddInteractiveServerComponents();

var app = builder.Build();

// Configure the HTTP request pipeline.
if (!app.Environment.IsDevelopment())
{
    app.UseExceptionHandler("/Error", createScopeForErrors: true);
    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
    app.UseHsts();
}

app.UseHttpsRedirection();

app.UseStaticFiles();
app.UseAntiforgery();

app.MapRazorComponents<App>()
    .AddInteractiveServerRenderMode();

var options = new LaunchOptions
{
    Headless = true
};

Console.WriteLine("Navigating google");
using (var browser = await Puppeteer.LaunchAsync(options))
using (var page = await browser.NewPageAsync())
{
    await page.GoToAsync("http://www.google.com");

    Console.WriteLine("Generating PDF");
    await page.PdfAsync(Path.Combine(Directory.GetCurrentDirectory(), "google.pdf"));

    Console.WriteLine("Export completed");

    if (!args.Any(arg => arg == "auto-exit"))
    {
        Console.ReadLine();
    }
}

app.Run();