ASP.NET MVC PDF查看器：构建一个安全的服务器端解决方案

Install-Package IronPdf

dotnet add package IronPdf

using IronPdf;
using System.Web.Mvc;

Imports IronPdf
Imports System.Web.Mvc

// Load existing PDF and stream it inline to the browser
var pdfPath = Server.MapPath($"~/Content/PDFs/{fileName}");
PdfDocument pdf = PdfDocument.FromFile(pdfPath);

// Set response headers to display in browser rather than download
Response.Headers.Add("Content-Disposition", "inline; filename=" + fileName);

return File(pdf.BinaryData, "application/pdf");

' Load existing PDF and stream it inline to the browser
Dim pdfPath As String = Server.MapPath($"~/Content/PDFs/{fileName}")
Dim pdf As PdfDocument = PdfDocument.FromFile(pdfPath)

' Set response headers to display in browser rather than download
Response.Headers.Add("Content-Disposition", "inline; filename=" & fileName)

Return File(pdf.BinaryData, "application/pdf")

// Sample data for the view
var model = new ReportModel
{
    Title = "Monthly Report",
    Data = ReportModel.GetReportData()
};

// Initialize renderer and configure options
var renderer = new ChromePdfRenderer();
renderer.RenderingOptions.MarginTop = 25;
renderer.RenderingOptions.MarginBottom = 25;
renderer.RenderingOptions.EnableJavaScript = true;

// Render MVC Razor view to PDF
var pdf = renderer.RenderView(this.HttpContext,
                              "~/Views/Reports/Monthly.cshtml",
                              model);

// Display inline in browser
Response.Headers.Add("Content-Disposition", "inline");
return File(pdf.BinaryData, "application/pdf");

Imports System.Web.Mvc

' Sample data for the view
Dim model As New ReportModel With {
    .Title = "Monthly Report",
    .Data = ReportModel.GetReportData()
}

' Initialize renderer and configure options
Dim renderer As New ChromePdfRenderer()
renderer.RenderingOptions.MarginTop = 25
renderer.RenderingOptions.MarginBottom = 25
renderer.RenderingOptions.EnableJavaScript = True

' Render MVC Razor view to PDF
Dim pdf = renderer.RenderView(Me.HttpContext,
                              "~/Views/Reports/Monthly.cshtml",
                              model)

' Display inline in browser
Response.Headers.Add("Content-Disposition", "inline")
Return File(pdf.BinaryData, "application/pdf")

// Generate PDF with advanced rendering options
var renderer = new ChromePdfRenderer();

renderer.RenderingOptions.PaperSize = IronPdf.Rendering.PdfPaperSize.A4;
renderer.RenderingOptions.PrintHtmlBackgrounds = true;
renderer.RenderingOptions.CreatePdfFormsFromHtml = true;
renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print;
renderer.RenderingOptions.WaitFor.RenderDelay = 500;

// Add a watermark header for draft documents
renderer.RenderingOptions.TextHeader = new TextHeaderFooter
{
    CenterText = "DRAFT - CONFIDENTIAL",
    FontSize = 12,
    FontFamily = "Arial",
    DrawDividerLine = true
};

var html = RenderPartialViewToString("~/Views/Reports/Advanced.cshtml", GetAdvancedModel());
var pdf = renderer.RenderHtmlAsPdf(html);

return File(pdf.BinaryData, "application/pdf");

Imports IronPdf

' Generate PDF with advanced rendering options
Dim renderer As New ChromePdfRenderer()

renderer.RenderingOptions.PaperSize = IronPdf.Rendering.PdfPaperSize.A4
renderer.RenderingOptions.PrintHtmlBackgrounds = True
renderer.RenderingOptions.CreatePdfFormsFromHtml = True
renderer.RenderingOptions.CssMediaType = IronPdf.Rendering.PdfCssMediaType.Print
renderer.RenderingOptions.WaitFor.RenderDelay = 500

' Add a watermark header for draft documents
renderer.RenderingOptions.TextHeader = New TextHeaderFooter With {
    .CenterText = "DRAFT - CONFIDENTIAL",
    .FontSize = 12,
    .FontFamily = "Arial",
    .DrawDividerLine = True
}

Dim html As String = RenderPartialViewToString("~/Views/Reports/Advanced.cshtml", GetAdvancedModel())
Dim pdf = renderer.RenderHtmlAsPdf(html)

Return File(pdf.BinaryData, "application/pdf")

// Load PDF and enable interactive features
var pdf = LoadPdfDocument(documentId);

pdf.SecuritySettings.AllowUserFormData = true;
pdf.Bookmarks.AddBookMarkAtStart("Table of Contents", 1);
pdf.Bookmarks.AddBookMarkAtStart("Chapter 1", 5);

// Configure viewer toolbar to show navigation controls
Response.Headers.Add("Content-Disposition",
                    "inline; filename=document.pdf#toolbar=1");

return File(pdf.BinaryData, "application/pdf");

' Load PDF and enable interactive features
Dim pdf = LoadPdfDocument(documentId)

pdf.SecuritySettings.AllowUserFormData = True
pdf.Bookmarks.AddBookMarkAtStart("Table of Contents", 1)
pdf.Bookmarks.AddBookMarkAtStart("Chapter 1", 5)

' Configure viewer toolbar to show navigation controls
Response.Headers.Add("Content-Disposition", "inline; filename=document.pdf#toolbar=1")

Return File(pdf.BinaryData, "application/pdf")

// Create an interactive PDF with embedded form fields
var renderer = new ChromePdfRenderer();
var html = @"
    <html>
    <body>
        <h1>Interactive PDF Form</h1>
        <form>
            <label>Name: <input type='text' name='fullname'/></label><br/>
            <label>Email: <input type='email' name='email'/></label><br/>
            <label>Comments: <textarea name='comments'></textarea></label><br/>
            <input type='submit' value='Submit'/>
        </form>
    </body>
    </html>";

// Enable HTML form-to-PDF-form conversion
renderer.RenderingOptions.CreatePdfFormsFromHtml = true;
var pdf = renderer.RenderHtmlAsPdf(html);

// Add an instructional annotation
pdf.AddTextAnnotation("Please fill out all fields", 1, 100, 100, 200, 50);

return File(pdf.BinaryData, "application/pdf");

Imports System.IO

' Create an interactive PDF with embedded form fields
Dim renderer As New ChromePdfRenderer()
Dim html As String = "
    <html>
    <body>
        <h1>Interactive PDF Form</h1>
        <form>
            <label>Name: <input type='text' name='fullname'/></label><br/>
            <label>Email: <input type='email' name='email'/></label><br/>
            <label>Comments: <textarea name='comments'></textarea></label><br/>
            <input type='submit' value='Submit'/>
        </form>
    </body>
    </html>"

' Enable HTML form-to-PDF-form conversion
renderer.RenderingOptions.CreatePdfFormsFromHtml = True
Dim pdf = renderer.RenderHtmlAsPdf(html)

' Add an instructional annotation
pdf.AddTextAnnotation("Please fill out all fields", 1, 100, 100, 200, 50)

Return File(pdf.BinaryData, "application/pdf")

// Apply security settings to restrict PDF access
var pdf = GenerateConfidentialPdf();

pdf.SecuritySettings.UserPassword = "MySecretPassword";
pdf.SecuritySettings.OwnerPassword = "OwnerSecretPassword";
pdf.SecuritySettings.AllowUserPrinting = PdfPrintSecurity.NoPrint;
pdf.SecuritySettings.AllowUserCopyPasteContent = false;
pdf.SecuritySettings.AllowUserEdits = IronPdf.Security.PdfEditSecurity.NoEdit;

// Prevent unauthorized embedding in external sites
Response.Headers.Add("X-Frame-Options", "SAMEORIGIN");
Response.Headers.Add("Content-Security-Policy",
                    "frame-ancestors 'self'");

return File(pdf.BinaryData, "application/pdf");

' Apply security settings to restrict PDF access
Dim pdf = GenerateConfidentialPdf()

pdf.SecuritySettings.UserPassword = "MySecretPassword"
pdf.SecuritySettings.OwnerPassword = "OwnerSecretPassword"
pdf.SecuritySettings.AllowUserPrinting = PdfPrintSecurity.NoPrint
pdf.SecuritySettings.AllowUserCopyPasteContent = False
pdf.SecuritySettings.AllowUserEdits = IronPdf.Security.PdfEditSecurity.NoEdit

' Prevent unauthorized embedding in external sites
Response.Headers.Add("X-Frame-Options", "SAMEORIGIN")
Response.Headers.Add("Content-Security-Policy", "frame-ancestors 'self'")

Return File(pdf.BinaryData, "application/pdf")