HTML'i PDF'ye ASP.NET Core'da Nasıl Dönüştürursunuz

dotnet add package IronPdf.Slim

using IronPdf;

Imports IronPdf

// Optional: Configure IronPDF settings
Installation.TempFolderPath = @"C:\Temp\IronPdf\";
Installation.LinuxAndDockerDependenciesAutoConfig = true;

// Configure license key for production
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY";

' Optional: Configure IronPDF settings
Installation.TempFolderPath = "C:\Temp\IronPdf\"
Installation.LinuxAndDockerDependenciesAutoConfig = True

' Configure license key for production
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY"

// Add health checks for monitoring
services.AddHealthChecks()
    .AddCheck("pdf-service", () =>
    {
        try
        {
            var renderer = new ChromePdfRenderer();
            var test = renderer.RenderHtmlAsPdf("<p>Health Check</p>");
            return HealthCheckResult.Healthy();
        }
        catch (Exception ex)
        {
            return HealthCheckResult.Unhealthy(ex.Message);
        }
    });

' Add health checks for monitoring
services.AddHealthChecks() _
    .AddCheck("pdf-service", Function() 
        Try
            Dim renderer = New ChromePdfRenderer()
            Dim test = renderer.RenderHtmlAsPdf("<p>Health Check</p>")
            Return HealthCheckResult.Healthy()
        Catch ex As Exception
            Return HealthCheckResult.Unhealthy(ex.Message)
        End Try
    End Function)

var html = @"
    <style>
        body { font-family: Arial, sans-serif; margin: 40px; }
        h1 { color: #2c3e50; border-bottom: 2px solid #3498db; }
        .highlight { background-color: #f1c40f; padding: 5px; }
    </style>
    <h1>Monthly Report</h1>
    <p>This HTML document includes <span class='highlight'>highlighted text</span> and styling.</p>
    <img src='data:image/png;base64,iVBORw0KGgoAAAANS...' alt='Logo' />";
var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf(html);

Dim html As String = "
    <style>
        body { font-family: Arial, sans-serif; margin: 40px; }
        h1 { color: #2c3e50; border-bottom: 2px solid #3498db; }
        .highlight { background-color: #f1c40f; padding: 5px; }
    </style>
    <h1>Monthly Report</h1>
    <p>This HTML document includes <span class='highlight'>highlighted text</span> and styling.</p>
    <img src='data:image/png;base64,iVBORw0KGgoAAAANS...' alt='Logo' />"
Dim renderer As New ChromePdfRenderer()
Dim pdf = renderer.RenderHtmlAsPdf(html)

// Configure base URL for resource loading
renderer.RenderingOptions.BaseUrl = new Uri("___PROTECTED_URL_105___");

// Or embed resources using data URIs for self-contained PDFs
var htmlWithEmbeddedResources = @"
    <style>
        @font-face {
            font-family: 'CustomFont';
            src: url(data:font/woff2;base64,...) format('woff2');
        }
    </style>";

' Configure base URL for resource loading
renderer.RenderingOptions.BaseUrl = New Uri("___PROTECTED_URL_105___")

' Or embed resources using data URIs for self-contained PDFs
Dim htmlWithEmbeddedResources As String = "
    <style>
        @font-face {
            font-family: 'CustomFont';
            src: url(data:font/woff2;base64,...) format('woff2');
        }
    </style>"

[HttpGet]
public async Task<IActionResult> DownloadPdf()
{
    var invoiceModel = new InvoiceModel
    {
        InvoiceNumber = 12345,
        Date = DateTime.Now,
        CustomerName = "Acme Corporation",
        Items = new List<InvoiceItem>
        {
            new InvoiceItem { Description = "Service", Quantity = 1, Price = 100.0 }
        },
        Total = 100.0
    };
    // Render the view to HTML string
    var htmlContent = await RenderViewToString("Invoice", invoiceModel);
    // Convert HTML to PDF
    var renderer = new ChromePdfRenderer();
    var pdf = renderer.RenderHtmlAsPdf(htmlContent);
    // Return PDF to browser
    var contentType = "application/pdf";
    var fileName = $"invoice_{DateTime.Now:yyyyMMdd}.pdf";
    return File(pdf.BinaryData, contentType, fileName);
}
private async Task<string> RenderViewToString(string viewName, object model)
{
    ViewData.Model = model;
    using (var writer = new StringWriter())
    {
        var viewResult = viewEngine.FindView(ControllerContext, viewName, false);
        var viewContext = new ViewContext(
            ControllerContext,
            viewResult.View,
            ViewData,
            TempData,
            writer,
            new HtmlHelperOptions()
        );
        await viewResult.View.RenderAsync(viewContext);
        return writer.GetStringBuilder().ToString();
    }
}

Imports System
Imports System.Collections.Generic
Imports System.IO
Imports System.Threading.Tasks
Imports Microsoft.AspNetCore.Mvc

<HttpGet>
Public Async Function DownloadPdf() As Task(Of IActionResult)
    Dim invoiceModel = New InvoiceModel With {
        .InvoiceNumber = 12345,
        .Date = DateTime.Now,
        .CustomerName = "Acme Corporation",
        .Items = New List(Of InvoiceItem) From {
            New InvoiceItem With {.Description = "Service", .Quantity = 1, .Price = 100.0}
        },
        .Total = 100.0
    }
    ' Render the view to HTML string
    Dim htmlContent = Await RenderViewToString("Invoice", invoiceModel)
    ' Convert HTML to PDF
    Dim renderer = New ChromePdfRenderer()
    Dim pdf = renderer.RenderHtmlAsPdf(htmlContent)
    ' Return PDF to browser
    Dim contentType = "application/pdf"
    Dim fileName = $"invoice_{DateTime.Now:yyyyMMdd}.pdf"
    Return File(pdf.BinaryData, contentType, fileName)
End Function

Private Async Function RenderViewToString(viewName As String, model As Object) As Task(Of String)
    ViewData.Model = model
    Using writer = New StringWriter()
        Dim viewResult = viewEngine.FindView(ControllerContext, viewName, False)
        Dim viewContext = New ViewContext(
            ControllerContext,
            viewResult.View,
            ViewData,
            TempData,
            writer,
            New HtmlHelperOptions()
        )
        Await viewResult.View.RenderAsync(viewContext)
        Return writer.GetStringBuilder().ToString()
    End Using
End Function

private readonly IMemoryCache _cache;

[HttpGet]
public async Task<IActionResult> DownloadCachedPdf(int invoiceId)
{
    var cacheKey = $"invoice_pdf_{invoiceId}";

    if (!_cache.TryGetValue(cacheKey, out byte[] pdfBytes))
    {
        // Generate PDF if not cached
        var htmlContent = await RenderViewToString("Invoice", model);
        var renderer = new ChromePdfRenderer();
        var pdf = renderer.RenderHtmlAsPdf(htmlContent);
        pdfBytes = pdf.BinaryData;

        // Cache for 1 hour
        _cache.Set(cacheKey, pdfBytes, TimeSpan.FromHours(1));
    }

    return File(pdfBytes, "application/pdf", $"invoice_{invoiceId}.pdf");
}

Imports System
Imports System.Threading.Tasks
Imports Microsoft.AspNetCore.Mvc
Imports Microsoft.Extensions.Caching.Memory

Private ReadOnly _cache As IMemoryCache

<HttpGet>
Public Async Function DownloadCachedPdf(invoiceId As Integer) As Task(Of IActionResult)
    Dim cacheKey = $"invoice_pdf_{invoiceId}"
    Dim pdfBytes As Byte() = Nothing

    If Not _cache.TryGetValue(cacheKey, pdfBytes) Then
        ' Generate PDF if not cached
        Dim htmlContent = Await RenderViewToString("Invoice", model)
        Dim renderer = New ChromePdfRenderer()
        Dim pdf = renderer.RenderHtmlAsPdf(htmlContent)
        pdfBytes = pdf.BinaryData

        ' Cache for 1 hour
        _cache.Set(cacheKey, pdfBytes, TimeSpan.FromHours(1))
    End If

    Return File(pdfBytes, "application/pdf", $"invoice_{invoiceId}.pdf")
End Function

[HttpGet]
public IActionResult GeneratePdfFromUrl()
{
    var renderer = new ChromePdfRenderer();
    // Convert a specified URL to PDF document
    var pdf = renderer.RenderUrlAsPdf("___PROTECTED_URL_106___");
    // Stream the PDF file to the browser
    return File(pdf.BinaryData, "application/pdf", "invoice.pdf");
}

<HttpGet>
Public Function GeneratePdfFromUrl() As IActionResult
    Dim renderer = New ChromePdfRenderer()
    ' Convert a specified URL to PDF document
    Dim pdf = renderer.RenderUrlAsPdf("___PROTECTED_URL_106___")
    ' Stream the PDF file to the browser
    Return File(pdf.BinaryData, "application/pdf", "invoice.pdf")
End Function

// Configure for Docker/Kubernetes environments
renderer.RenderingOptions.Timeout = 60000; // 60 second timeout
renderer.RenderingOptions.EnableJavaScript = true;
renderer.RenderingOptions.WaitFor = new WaitFor()
{
    RenderDelay = 500, // Wait 500ms after page load
    NetworkIdle = IronPdf.Engines.Chrome.NetworkIdle.NetworkIdle2
};

' Configure for Docker/Kubernetes environments
renderer.RenderingOptions.Timeout = 60000 ' 60 second timeout
renderer.RenderingOptions.EnableJavaScript = True
renderer.RenderingOptions.WaitFor = New WaitFor() With {
    .RenderDelay = 500, ' Wait 500ms after page load
    .NetworkIdle = IronPdf.Engines.Chrome.NetworkIdle.NetworkIdle2
}

var renderer = new ChromePdfRenderer();
// Set cookies for authenticated requests with user database credentials
renderer.RenderingOptions.CustomCookies.Add("auth_token", Request.Cookies["auth_token"]);
// Convert protected web pages to PDF
var pdf = renderer.RenderUrlAsPdf("___PROTECTED_URL_107___");

Dim renderer As New ChromePdfRenderer()
' Set cookies for authenticated requests with user database credentials
renderer.RenderingOptions.CustomCookies.Add("auth_token", Request.Cookies("auth_token"))
' Convert protected web pages to PDF
Dim pdf = renderer.RenderUrlAsPdf("___PROTECTED_URL_107___")

// Add service authentication headers
renderer.RenderingOptions.ExtraHttpHeaders.Add("X-Service-Token", GetServiceToken());
renderer.RenderingOptions.ExtraHttpHeaders.Add("X-Request-ID", Activity.Current?.Id);

// Configure for internal service mesh
renderer.RenderingOptions.BaseUrl = new Uri("___PROTECTED_URL_108___");

' Add service authentication headers
renderer.RenderingOptions.ExtraHttpHeaders.Add("X-Service-Token", GetServiceToken())
renderer.RenderingOptions.ExtraHttpHeaders.Add("X-Request-ID", Activity.Current?.Id)

' Configure for internal service mesh
renderer.RenderingOptions.BaseUrl = New Uri("___PROTECTED_URL_108___")

var renderer = new ChromePdfRenderer();
// Set default page size for PDF pages
renderer.RenderingOptions.PaperSize = PdfPaperSize.A4;
renderer.RenderingOptions.PaperOrientation = PdfPaperOrientation.Portrait;
// Control page width and margins for the resultant PDF document
renderer.RenderingOptions.MarginTop = 25;
renderer.RenderingOptions.MarginBottom = 25;
renderer.RenderingOptions.MarginLeft = 20;
renderer.RenderingOptions.MarginRight = 20;

Dim renderer As New ChromePdfRenderer()
' Set default page size for PDF pages
renderer.RenderingOptions.PaperSize = PdfPaperSize.A4
renderer.RenderingOptions.PaperOrientation = PdfPaperOrientation.Portrait
' Control page width and margins for the resultant PDF document
renderer.RenderingOptions.MarginTop = 25
renderer.RenderingOptions.MarginBottom = 25
renderer.RenderingOptions.MarginLeft = 20
renderer.RenderingOptions.MarginRight = 20

// Configure viewport for mobile-friendly PDFs
renderer.RenderingOptions.ViewportWidth = 1024;
renderer.RenderingOptions.ViewportHeight = 768;
renderer.RenderingOptions.CssMediaType = PdfCssMediaType.Print;
renderer.RenderingOptions.FitToPaperMode = FitToPaperModes.Zoom;
renderer.RenderingOptions.Zoom = 100;

' Configure viewport for mobile-friendly PDFs
renderer.RenderingOptions.ViewportWidth = 1024
renderer.RenderingOptions.ViewportHeight = 768
renderer.RenderingOptions.CssMediaType = PdfCssMediaType.Print
renderer.RenderingOptions.FitToPaperMode = FitToPaperModes.Zoom
renderer.RenderingOptions.Zoom = 100

renderer.RenderingOptions.HtmlHeader = new HtmlHeaderFooter()
{
    HtmlFragment = "<div style='text-align: center'>Company Report</div>",
    MaxHeight = 20
};
renderer.RenderingOptions.HtmlFooter = new HtmlHeaderFooter()
{
    HtmlFragment = "<div style='text-align: center'>Page {page} of {total-pages}</div>",
    MaxHeight = 20
};

Imports System

renderer.RenderingOptions.HtmlHeader = New HtmlHeaderFooter() With {
    .HtmlFragment = "<div style='text-align: center'>Company Report</div>",
    .MaxHeight = 20
}
renderer.RenderingOptions.HtmlFooter = New HtmlHeaderFooter() With {
    .HtmlFragment = "<div style='text-align: center'>Page {page} of {total-pages}</div>",
    .MaxHeight = 20
}

// Create dynamic headers with metadata
var headerHtml = $@"
    <div style='display: flex; justify-content: space-between; font-size: 10px;'>
        <span>Generated: {DateTime.UtcNow:yyyy-MM-dd HH:mm} UTC</span>
        <span>Environment: {Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT")}</span>
    </div>";

renderer.RenderingOptions.HtmlHeader = new HtmlHeaderFooter()
{
    HtmlFragment = headerHtml,
    MaxHeight = 30,
    DrawDividerLine = true
};

' Create dynamic headers with metadata
Dim headerHtml = $"
    <div style='display: flex; justify-content: space-between; font-size: 10px;'>
        <span>Generated: {DateTime.UtcNow:yyyy-MM-dd HH:mm} UTC</span>
        <span>Environment: {Environment.GetEnvironmentVariable(""ASPNETCORE_ENVIRONMENT"")}</span>
    </div>"

renderer.RenderingOptions.HtmlHeader = New HtmlHeaderFooter() With {
    .HtmlFragment = headerHtml,
    .MaxHeight = 30,
    .DrawDividerLine = True
}