如何在ASP.NET中使用C#和IronPDF查看PDF文件

// Create a renderer to convert HTML to PDF
var renderer = new ChromePdfRenderer();

// Convert an HTML string to a PDF
using var renderedPdf = renderer.RenderHtmlAsPdf("<h1>My First HTML to Pdf</h1>");

// Define the output path for the PDF
var outputPath = "My_First_Html.pdf";

// Save the rendered PDF to the specified path
renderedPdf.SaveAs(outputPath);

// Automatically open the newly created PDF
System.Diagnostics.Process.Start(outputPath);

' Create a renderer to convert HTML to PDF
Dim renderer = New ChromePdfRenderer()

' Convert an HTML string to a PDF
Dim renderedPdf = renderer.RenderHtmlAsPdf("<h1>My First HTML to Pdf</h1>")

' Define the output path for the PDF
Dim outputPath = "My_First_Html.pdf"

' Save the rendered PDF to the specified path
renderedPdf.SaveAs(outputPath)

' Automatically open the newly created PDF
System.Diagnostics.Process.Start(outputPath)

// Render HTML to PDF with a base path for local assets
var renderPdf = renderer.RenderHtmlAsPdf("<img src='image_1.png'/>", @"C:\Newproject");

' Render HTML to PDF with a base path for local assets
Dim renderPdf = renderer.RenderHtmlAsPdf("<img src='image_1.png'/>", "C:\Newproject")

// Create a renderer for converting URLs to PDF
var renderer = new ChromePdfRenderer();

// Convert the specified URL to a PDF
using var renderedPdf = renderer.RenderUrlAsPdf("https://endeavorcreative.com/setting-up-wordpress-website-from-scratch/");

// Specify the output path for the PDF
var outputPath = "Url_pdf.pdf";

// Save the PDF to the specified path
renderedPdf.SaveAs(outputPath);

// Open the newly created PDF
System.Diagnostics.Process.Start(outputPath);

' Create a renderer for converting URLs to PDF
Dim renderer = New ChromePdfRenderer()

' Convert the specified URL to a PDF
Dim renderedPdf = renderer.RenderUrlAsPdf("https://endeavorcreative.com/setting-up-wordpress-website-from-scratch/")

' Specify the output path for the PDF
Dim outputPath = "Url_pdf.pdf"

' Save the PDF to the specified path
renderedPdf.SaveAs(outputPath)

' Open the newly created PDF
System.Diagnostics.Process.Start(outputPath)

// Create a renderer for existing HTML files
var renderer = new ChromePdfRenderer();

// Render an HTML file to PDF
using var renderedPdf = renderer.RenderHtmlFileAsPdf("Assets/test1.html");

// Specify the output path for the PDF
var outputPath = "test1_pdf.pdf";

// Save the PDF to the specified path
renderedPdf.SaveAs(outputPath);

// Open the newly created PDF
System.Diagnostics.Process.Start(outputPath);

' Create a renderer for existing HTML files
Dim renderer = New ChromePdfRenderer()

' Render an HTML file to PDF
Dim renderedPdf = renderer.RenderHtmlFileAsPdf("Assets/test1.html")

' Specify the output path for the PDF
Dim outputPath = "test1_pdf.pdf"

' Save the PDF to the specified path
renderedPdf.SaveAs(outputPath)

' Open the newly created PDF
System.Diagnostics.Process.Start(outputPath)

using IronPdf;
using System;
using System.Web.UI;

namespace WebApplication7
{
    public partial class _Default : Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            // Render the current page as a PDF in the browser
            AspxToPdf.RenderThisPageAsPdf(AspxToPdf.FileBehavior.InBrowser);
        }
    }
}

Imports IronPdf
Imports System
Imports System.Web.UI

Namespace WebApplication7
	Partial Public Class _Default
		Inherits Page

		Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
			' Render the current page as a PDF in the browser
			AspxToPdf.RenderThisPageAsPdf(AspxToPdf.FileBehavior.InBrowser)
		End Sub
	End Class
End Namespace

// Basic HTML String Formatting
string formattedString = String.Format("<h1>Hello {0}!</h1>", "World");

' Basic HTML String Formatting
Dim formattedString As String = String.Format("<h1>Hello {0}!</h1>", "World")

// Define an HTML template with a placeholder
var htmlTemplate = "<p>[[NAME]]</p>";

// Sample data to replace placeholders
var names = new[] { "John", "James", "Jenny" };

// Create a new PDF for each name
foreach (var name in names)
{
    // Replace placeholder with actual name
    var htmlInstance = htmlTemplate.Replace("[[NAME]]", name);

    // Create a renderer and render the HTML as PDF
    var renderer = new ChromePdfRenderer();
    using var pdf = renderer.RenderHtmlAsPdf(htmlInstance);

    // Save the PDF with the name in the filename
    pdf.SaveAs($"{name}.pdf");
}

' Define an HTML template with a placeholder
Dim htmlTemplate = "<p>[[NAME]]</p>"

' Sample data to replace placeholders
Dim names = { "John", "James", "Jenny" }

' Create a new PDF for each name
For Each name In names
	' Replace placeholder with actual name
	Dim htmlInstance = htmlTemplate.Replace("[[NAME]]", name)

	' Create a renderer and render the HTML as PDF
	Dim renderer = New ChromePdfRenderer()
	Dim pdf = renderer.RenderHtmlAsPdf(htmlInstance)

	' Save the PDF with the name in the filename
	pdf.SaveAs($"{name}.pdf")
Next name

using IronPdf;
using System;
using System.Web.Mvc;

namespace WebApplication8.Controllers
{
    public class HomeController : Controller
    {
        public ActionResult Index()
        {
            // Render a URL as PDF and return it in the response
            using var pdf = HtmlToPdf.StaticRenderUrlAsPdf(new Uri("https://en.wikipedia.org"));
            return File(pdf.BinaryData, "application/pdf", "Wiki.Pdf");
        }

        public ActionResult About()
        {
            ViewBag.Message = "Your application description page.";
            return View();
        }

        public ActionResult Contact()
        {
            ViewBag.Message = "Your contact page.";
            return View();
        }
    }
}

Imports IronPdf
Imports System
Imports System.Web.Mvc

Namespace WebApplication8.Controllers
	Public Class HomeController
		Inherits Controller

		Public Function Index() As ActionResult
			' Render a URL as PDF and return it in the response
			Dim pdf = HtmlToPdf.StaticRenderUrlAsPdf(New Uri("https://en.wikipedia.org"))
			Return File(pdf.BinaryData, "application/pdf", "Wiki.Pdf")
		End Function

		Public Function About() As ActionResult
			ViewBag.Message = "Your application description page."
			Return View()
		End Function

		Public Function Contact() As ActionResult
			ViewBag.Message = "Your contact page."
			Return View()
		End Function
	End Class
End Namespace

// Create a renderer and render a PDF from a URL
var renderer = new ChromePdfRenderer();
using var pdf = renderer.RenderUrlAsPdf("https://www.nuget.org/packages/IronPdf/");

// Merge the cover page with the rendered PDF
using var merged = PdfDocument.Merge(new PdfDocument("CoverPage.pdf"), pdf);

// Save the merged document
merged.SaveAs("Combined.Pdf");

' Create a renderer and render a PDF from a URL
Dim renderer = New ChromePdfRenderer()
Dim pdf = renderer.RenderUrlAsPdf("https://www.nuget.org/packages/IronPdf/")

' Merge the cover page with the rendered PDF
Dim merged = PdfDocument.Merge(New PdfDocument("CoverPage.pdf"), pdf)

' Save the merged document
merged.SaveAs("Combined.Pdf")

// Prepare a stamper with HTML content for the watermark
HtmlStamper stamper = new HtmlStamper("<h2 style='color:red'>SAMPLE</h2>")
{
    HorizontalOffset = new Length(-3, MeasurementUnit.Inch),
    VerticalAlignment = VerticalAlignment.Bottom
};

// Create a renderer and render a PDF from a URL
var renderer = new ChromePdfRenderer();
using var pdf = renderer.RenderUrlAsPdf("https://www.nuget.org/packages/IronPdf");

// Apply the watermark to the PDF
pdf.ApplyStamp(stamper);

// Save the watermarked PDF
pdf.SaveAs(@"C:\PathToWatermarked.pdf");

' Prepare a stamper with HTML content for the watermark
Dim stamper As New HtmlStamper("<h2 style='color:red'>SAMPLE</h2>") With {
	.HorizontalOffset = New Length(-3, MeasurementUnit.Inch),
	.VerticalAlignment = VerticalAlignment.Bottom
}

' Create a renderer and render a PDF from a URL
Dim renderer = New ChromePdfRenderer()
Dim pdf = renderer.RenderUrlAsPdf("https://www.nuget.org/packages/IronPdf")

' Apply the watermark to the PDF
pdf.ApplyStamp(stamper)

' Save the watermarked PDF
pdf.SaveAs("C:\PathToWatermarked.pdf")

using IronPdf;

namespace ConsoleApp
{
    class Program
    {
        static void Main(string[] args)
        {
            // Create a renderer and render a PDF from HTML
            var renderer = new ChromePdfRenderer();
            using var pdfDocument = renderer.RenderHtmlAsPdf("<h1>Hello World</h1>");

            // Set password to protect the PDF
            pdfDocument.Password = "strong!@#pass&^%word";

            // Save the secured PDF
            pdfDocument.SaveAs("secured.pdf");
        }
    }
}

Imports IronPdf

Namespace ConsoleApp
	Friend Class Program
		Shared Sub Main(ByVal args() As String)
			' Create a renderer and render a PDF from HTML
			Dim renderer = New ChromePdfRenderer()
			Dim pdfDocument = renderer.RenderHtmlAsPdf("<h1>Hello World</h1>")

			' Set password to protect the PDF
			pdfDocument.Password = "strong!@#pass&^%word"

			' Save the secured PDF
			pdfDocument.SaveAs("secured.pdf")
		End Sub
	End Class
End Namespace