PDFsharp Seitenzahlen zu PDF hinzufügen VS IronPDF (Beispiel)

IronPDF is a powerful .NET library designed for seamless PDF creation, manipulation, and rendering. It stands out for its ability to convert HTML, CSS, and JavaScript directly into high-quality PDFs using a Chromium-based engine. This makes IronPDF an ideal solution for developers who need to convert dynamic web pages or complex HTML content into a well-formatted PDF, preserving the layout and style as it appears in the browser.

Key Features of IronPDF:

• Converts HTML, JavaScript, and CSS to high-quality PDFs.
• Enables custom headers, footers, watermarks, and other page elements.
• Supports merging PDF files and splitting them.
• Works seamlessly with .NET applications, including ASP.NET and MVC frameworks.
• Provides precise control over PDF rendering, ensuring content is displayed as intended.
• Offers a straightforward API for easy integration into projects.

To explore more advanced features and examples, refer to the official IronPDF documentation.

Installing IronPDF

To add IronPDF to your project, use the NuGet package manager in Visual Studio. You can install it using the Visual Command-Line interface or search directly in the NuGet Package Manager.

Command-line installation:

Install-Package IronPdf

Alternatively, you can search for "IronPDF" in the NuGet Package Manager and install it from there.

PDFsharp is a versatile .NET library focused on creating and manipulating PDF documents with high flexibility. Unlike other libraries, PDFsharp allows detailed control over the structure and design of PDFs, making it a great choice for developers who want to create documents from scratch or modify existing PDFs. With its rich API, PDFsharp supports a wide array of document manipulation tasks, including adding text, images, tables, and even page numbers.

Key Features of PDFSharp:

• Creates, reads, and modifies PDF documents.
• Customizable page events to add elements such as page numbers or footers.
• Supports adding images, text, tables, and other content.
• Offers detailed control over PDF layout and structure.
• Can modify existing PDFs, including merging or splitting documents.
• Open-source library with flexibility for developers to customize or extend.

To dive deeper into PDFSharp's functionality and usage, check out the PDFSharp GitHub repository.

Installing PDFsharp

To get started with PDFSharp, install the package via NuGet using the command line:

Command-line installation:

Install-Package PDFSharp

Alternatively, you can search for "PDFSharp" in the NuGet Package Manager and install it from there.

IronPDF is a versatile PDF library designed to handle a wide range of PDF operations, including adding page numbers. IronPDF operates internally on a Chromium engine, allowing it to offer precise rendering of HTML content as PDFs. With its simple API, adding page numbers to your PDF is both efficient and straightforward.

The following code is an example of how to add page numbers using IronPDF in C#:

using IronPdf;
class Program
{
    static void Main(string[] args)
    {
        var html = "<h1>Hello World!</h1><p>This document was generated using IronPDF</p>";

        // Instantiate ChromePdfRenderer
        ChromePdfRenderer renderer = new ChromePdfRenderer()
        {
            // Set rendering options for page header
            RenderingOptions = {
                HtmlHeader = new HtmlHeaderFooter
                {
                    HtmlFragment = "<center><i>{page} of {total-pages}</i></center>" // Page number format
                },
            }
        };

        // Render given HTML as PDF
        PdfDocument pdf = renderer.RenderHtmlAsPdf(html);

        // Save the resulting PDF with page numbers
        pdf.SaveAs("pageNumbers.pdf");
    }
}

using IronPdf;
class Program
{
    static void Main(string[] args)
    {
        var html = "<h1>Hello World!</h1><p>This document was generated using IronPDF</p>";

        // Instantiate ChromePdfRenderer
        ChromePdfRenderer renderer = new ChromePdfRenderer()
        {
            // Set rendering options for page header
            RenderingOptions = {
                HtmlHeader = new HtmlHeaderFooter
                {
                    HtmlFragment = "<center><i>{page} of {total-pages}</i></center>" // Page number format
                },
            }
        };

        // Render given HTML as PDF
        PdfDocument pdf = renderer.RenderHtmlAsPdf(html);

        // Save the resulting PDF with page numbers
        pdf.SaveAs("pageNumbers.pdf");
    }
}

Imports IronPdf
Friend Class Program
	Shared Sub Main(ByVal args() As String)
		Dim html = "<h1>Hello World!</h1><p>This document was generated using IronPDF</p>"

		' Instantiate ChromePdfRenderer
		Dim renderer As New ChromePdfRenderer() With {
			.RenderingOptions = {
				HtmlHeader = New HtmlHeaderFooter With {.HtmlFragment = "<center><i>{page} of {total-pages}</i></center>"}
			}
		}

		' Render given HTML as PDF
		Dim pdf As PdfDocument = renderer.RenderHtmlAsPdf(html)

		' Save the resulting PDF with page numbers
		pdf.SaveAs("pageNumbers.pdf")
	End Sub
End Class

Output

This code demonstrates how to easily insert page numbers in the header of a PDF document. The HtmlHeaderFooter object is used to specify the header content, and placeholders like {page} and {total-pages} automatically populate with the page number and the total page count respectively.

With this approach, IronPDF simplifies the process of rendering HTML as PDFs while managing page number placement effortlessly.

PDFSharp is a comprehensive library for working with PDFs in C#. It provides tools for creating, modifying, and reading PDFs. Though it is not designed specifically for HTML-to-PDF conversion, it offers robust control over PDF documents, including the ability to add page numbers using custom page events. Whether you wish to add page numbers to just the first page, or second page, a range of pages, or just all of them.

Here’s an example of how to add page numbers using PDFSharp:

using PdfSharp.Pdf;
using PdfSharp.Pdf.IO;
using PdfSharp.Drawing;
internal class Program
{
    static void Main(string[] args)
    {
        // Create a new PDF document
        var doc = new PdfDocument();
        doc.Info.Title = "Page Numbers Example";

        // Add a new page to the document
        PdfPage page = doc.AddPage();

        // Create graphics object for drawing
        var gfx = XGraphics.FromPdfPage(page);
        var font = new XFont("Arial", 12);

        // Draw page number in the footer
        gfx.DrawString("Page " + doc.PageCount, font, XBrushes.Black, new XPoint(500, 770));

        // Save the PDF file
        doc.Save("PdfSharpOutput.pdf");
    }
}

using PdfSharp.Pdf;
using PdfSharp.Pdf.IO;
using PdfSharp.Drawing;
internal class Program
{
    static void Main(string[] args)
    {
        // Create a new PDF document
        var doc = new PdfDocument();
        doc.Info.Title = "Page Numbers Example";

        // Add a new page to the document
        PdfPage page = doc.AddPage();

        // Create graphics object for drawing
        var gfx = XGraphics.FromPdfPage(page);
        var font = new XFont("Arial", 12);

        // Draw page number in the footer
        gfx.DrawString("Page " + doc.PageCount, font, XBrushes.Black, new XPoint(500, 770));

        // Save the PDF file
        doc.Save("PdfSharpOutput.pdf");
    }
}

Imports PdfSharp.Pdf
Imports PdfSharp.Pdf.IO
Imports PdfSharp.Drawing
Friend Class Program
	Shared Sub Main(ByVal args() As String)
		' Create a new PDF document
		Dim doc = New PdfDocument()
		doc.Info.Title = "Page Numbers Example"

		' Add a new page to the document
		Dim page As PdfPage = doc.AddPage()

		' Create graphics object for drawing
		Dim gfx = XGraphics.FromPdfPage(page)
		Dim font = New XFont("Arial", 12)

		' Draw page number in the footer
		gfx.DrawString("Page " & doc.PageCount, font, XBrushes.Black, New XPoint(500, 770))

		' Save the PDF file
		doc.Save("PdfSharpOutput.pdf")
	End Sub
End Class

Output