C# Wysyłanie pliku PDF do drukarki (samouczek krok po kroku)

IronPDF

IronPDF is a PDF Library for the .NET Framework that allows developers to create PDF files easily. IronPDF's rendering is "pixel-perfect" for desktop versions of Google Chrome. IronPDF easily creates PDF documents using a single line of code. It can process PDF documents without Acrobat Reader or other PDF viewers.

IronPDF can be used for creating PDF files from HTML strings, from HTML files, or from URLs. Afterward, it can send these files to a default printer for printing.

A free trial of IronPDF is available.

Some important features of the IronPDF library

• Create PDF documents from HTML 4 and 5, CSS, and JavaScript
• Generate PDF documents from URLs
• Print a PDF to a default, physical printer
• Set print job settings (for printing specific pages, etc.)
• Load URLs with custom-network login credentials, user agents, proxies, cookies, HTTP headers, and form fields or variables, thereby allowing access to web pages behind HTML login forms
• Read and fill PDF (Portable Document Format) form-field data
• Extract images and texts from PDF files
• Digitally sign PDF documents
• No third-party library required

2.1. NuGet Menedżer pakietów

We can install the IronPDF C# .NET Core Library from the NuGet Menedżer pakietów.

Open the Menedżer pakietów by clicking on Tools > NuGet Menedżer pakietów > Manage NuGet Packages for Solution.

Menedżer pakietów

Or, right-click on the project in Solution Explorer and click Manage NuGet Packages.

NuGet Menedżer pakietów - Solution Explorer

Search for IronPDF. Wybierz IronPDF i kliknij Instaluj. Rozpocznie się instalacja biblioteki.

Zainstaluj IronPDF

2.2. NuGet Konsola menedżera pakietów

Open the NuGet Konsola menedżera pakietów by clicking on Tools > NuGet Menedżer pakietów > Konsola menedżera pakietów.

Type the following command in the command line:

Install-Package IronPrint

Konsola menedżera pakietów

2.3. Using a DLL File

Another way to use IronPDF in your project is to add a DLL file from the IronPDF library. You can download the DLL file from this link.

• Pobierz plik ZIP z biblioteką DLL. Rozpakuj go do wybranego folderu.
• Otwórz projekt w Visual Studio. In the Solution Explorer, right-click on "References" and browse for the IronPDF DLL file.

2.4. Add the IronPDF Namespace

Once the installation is done, add the IronPDF and System.Drawing namespace to your program file.

using IronPdf;
using System.Drawing;

using IronPdf;
using System.Drawing;

Imports IronPdf
Imports System.Drawing

Note: You must add these references to every file where you wish to use IronPDF's features.

IronPDF is installed and ready! We can now create our first PDF document for our .NET Core applications and send it to the default printer for printing. Przyjrzyjmy się niektórym z nich poniżej, korzystając z przykładów kodu.

3.1. Create and Print a PDF Document from HTML

It is very easy to process HTML strings and convert them to PDF format. This newly created file can be then printed using IronPDF. Here is the code that easily creates PDFs.

// Create an instance of ChromePdfRenderer
var chromePdfRenderer = new IronPdf.ChromePdfRenderer();

// Render any HTML fragment to a PDF document
using var pdfDocument = chromePdfRenderer.RenderHtmlAsPdf("<h1>Hello IronPdf</h1><p>This tutorial will help to print this text to a PDF file.</p>");

// Send the PDF to the default printer
pdfDocument.Print();

// Create a PrintDocument object that can be used for further configurations
System.Drawing.Printing.PrintDocument printDocument = pdfDocument.GetPrintDocument();

// Create an instance of ChromePdfRenderer
var chromePdfRenderer = new IronPdf.ChromePdfRenderer();

// Render any HTML fragment to a PDF document
using var pdfDocument = chromePdfRenderer.RenderHtmlAsPdf("<h1>Hello IronPdf</h1><p>This tutorial will help to print this text to a PDF file.</p>");

// Send the PDF to the default printer
pdfDocument.Print();

// Create a PrintDocument object that can be used for further configurations
System.Drawing.Printing.PrintDocument printDocument = pdfDocument.GetPrintDocument();

' Create an instance of ChromePdfRenderer
Dim chromePdfRenderer = New IronPdf.ChromePdfRenderer()

' Render any HTML fragment to a PDF document
Dim pdfDocument = chromePdfRenderer.RenderHtmlAsPdf("<h1>Hello IronPdf</h1><p>This tutorial will help to print this text to a PDF file.</p>")

' Send the PDF to the default printer
pdfDocument.Print()

' Create a PrintDocument object that can be used for further configurations
Dim printDocument As System.Drawing.Printing.PrintDocument = pdfDocument.GetPrintDocument()

This code will create a PDF file with the HTML content passed in the RenderHtmlAsPdf function. This function performs the conversion of HTML fragments to a PDF document.

You must be familiar with HTML tags to generate PDF files or PDF pages using the IronPDF library. We use the Print function to send the output of the PDF file to the printer. The printer dialog will appear, allowing you to confirm the print job.

3.2. Create and Print a PDF Document from URL

You can also create PDF documents using a URL:

// Create an instance of ChromePdfRenderer
var chromePdfRenderer = new IronPdf.ChromePdfRenderer();

// Render a PDF from a URL
var pdfDocument = chromePdfRenderer.RenderUrlAsPdf("https://ironpdf.com/");

// Send the PDF to the default printer
pdfDocument.Print();

// Create a PrintDocument object that can be used for further configurations
System.Drawing.Printing.PrintDocument printDocument = pdfDocument.GetPrintDocument();

// Create an instance of ChromePdfRenderer
var chromePdfRenderer = new IronPdf.ChromePdfRenderer();

// Render a PDF from a URL
var pdfDocument = chromePdfRenderer.RenderUrlAsPdf("https://ironpdf.com/");

// Send the PDF to the default printer
pdfDocument.Print();

// Create a PrintDocument object that can be used for further configurations
System.Drawing.Printing.PrintDocument printDocument = pdfDocument.GetPrintDocument();

' Create an instance of ChromePdfRenderer
Dim chromePdfRenderer = New IronPdf.ChromePdfRenderer()

' Render a PDF from a URL
Dim pdfDocument = chromePdfRenderer.RenderUrlAsPdf("https://ironpdf.com/")

' Send the PDF to the default printer
pdfDocument.Print()

' Create a PrintDocument object that can be used for further configurations
Dim printDocument As System.Drawing.Printing.PrintDocument = pdfDocument.GetPrintDocument()

Here, a PDF file is created from a specified URL and then printed.

Print PDF Generated from URL

4.1 Specify the Printer

To specify the printer, all you need to do is to get the current printing document object (using the GetPrintDocument method), then use the PrinterSettings.PrinterName property. You can choose any available printer.

using (var printDocument = pdfDocument.GetPrintDocument())
{
    // Specify the printer name
    printDocument.PrinterSettings.PrinterName = "Microsoft Print to PDF";

    // Print the document
    printDocument.Print();
}

using (var printDocument = pdfDocument.GetPrintDocument())
{
    // Specify the printer name
    printDocument.PrinterSettings.PrinterName = "Microsoft Print to PDF";

    // Print the document
    printDocument.Print();
}

Using printDocument = pdfDocument.GetPrintDocument()
	' Specify the printer name
	printDocument.PrinterSettings.PrinterName = "Microsoft Print to PDF"

	' Print the document
	printDocument.Print()
End Using

In the code sample above, "Microsoft Print to PDF" is chosen as a printer. More information about setting specific print settings can be found in the documentation pages.

4.2 Set Printer Resolution

You can also set the resolution for printing a PDF. The resolution refers to the quality of print in terms of the number of pixels. You can set the resolution of your printing document using the DefaultPageSettings.PrinterResolution property of the PDF document.

// Set custom printer resolution
printDocument.DefaultPageSettings.PrinterResolution = new System.Drawing.Printing.PrinterResolution
{
    Kind = System.Drawing.Printing.PrinterResolutionKind.Custom,
    X = 1200,
    Y = 1200
};

// Set custom printer resolution
printDocument.DefaultPageSettings.PrinterResolution = new System.Drawing.Printing.PrinterResolution
{
    Kind = System.Drawing.Printing.PrinterResolutionKind.Custom,
    X = 1200,
    Y = 1200
};

' Set custom printer resolution
printDocument.DefaultPageSettings.PrinterResolution = New System.Drawing.Printing.PrinterResolution With {
	.Kind = System.Drawing.Printing.PrinterResolutionKind.Custom,
	.X = 1200,
	.Y = 1200
}

4.3 Tracing Printing Processes Using C

In the following code example, you will see how to change the printer name, set the resolution, and get a count of the pages that were printed.

int printedPages;

using (var printDocument = pdfDocument.GetPrintDocument())
{
    // Specify the printer name
    printDocument.PrinterSettings.PrinterName = "Microsoft Print to PDF";

    // Set custom printer resolution
    printDocument.DefaultPageSettings.PrinterResolution = new System.Drawing.Printing.PrinterResolution
    {
        Kind = System.Drawing.Printing.PrinterResolutionKind.Custom,
        X = 1200,
        Y = 1200
    };

    // Track number of printed pages
    printedPages = 0;
    printDocument.PrintPage += (sender, args) => printedPages++;

    // Print the document
    printDocument.Print();
}

int printedPages;

using (var printDocument = pdfDocument.GetPrintDocument())
{
    // Specify the printer name
    printDocument.PrinterSettings.PrinterName = "Microsoft Print to PDF";

    // Set custom printer resolution
    printDocument.DefaultPageSettings.PrinterResolution = new System.Drawing.Printing.PrinterResolution
    {
        Kind = System.Drawing.Printing.PrinterResolutionKind.Custom,
        X = 1200,
        Y = 1200
    };

    // Track number of printed pages
    printedPages = 0;
    printDocument.PrintPage += (sender, args) => printedPages++;

    // Print the document
    printDocument.Print();
}

Dim printedPages As Integer

Using printDocument = pdfDocument.GetPrintDocument()
	' Specify the printer name
	printDocument.PrinterSettings.PrinterName = "Microsoft Print to PDF"

	' Set custom printer resolution
	printDocument.DefaultPageSettings.PrinterResolution = New System.Drawing.Printing.PrinterResolution With {
		.Kind = System.Drawing.Printing.PrinterResolutionKind.Custom,
		.X = 1200,
		.Y = 1200
	}

	' Track number of printed pages
	printedPages = 0
'INSTANT VB WARNING: An assignment within expression was extracted from the following statement:
'ORIGINAL LINE: printDocument.PrintPage += (sender, args) => printedPages++;
	AddHandler printDocument.PrintPage, Sub(sender, args) printedPages
	printedPages += 1

	' Print the document
	printDocument.Print()
End Using