在 .NET Framework 中打印 PDF

以下代码片段也适用于 Aspose.PDF.Drawing 库。

在 C# 中打印 PDF 文件 - 使用打印机和页面设置将 PDF 文件打印到默认打印机

本文描述了如何使用打印机和页面设置在 C# 中将 PDF 文件打印到默认打印机。

PdfViewer 类允许您将 PDF 文件打印到默认打印机。您需要创建一个 PdfViewer 对象并使用 BindPdf 方法打开 PDF。要指定不同的打印设置，请使用 PageSettings 和 PrinterSettings 类。最后，调用 PrintDocumentWithSettings 方法将 PDF 打印到默认打印机。以下代码片段演示了如何使用打印机和页面设置将 PDF 打印到默认打印机。

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void SimplePrint()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdfFacades_Printing();

    // Create PdfViewer object
    using (var viewer = new Aspose.Pdf.Facades.PdfViewer())
    {
        // Bind PDF document
        viewer.BindPdf(dataDir + "PrintDocument.pdf");

        // Set attributes for printing
        // Print the file with adjusted size
        viewer.AutoResize = true;
        // Print the file with adjusted rotation
        viewer.AutoRotate = true;
        // Do not produce the page number dialog when printing
        viewer.PrintPageDialog = false;

        // Create objects for printer and page settings and PrintDocument
        var ps = new Aspose.Pdf.Printing.PrinterSettings();
        var pgs = new Aspose.Pdf.Printing.PageSettings();
        var prtdoc = new System.Drawing.Printing.PrintDocument();

        // Set printer name
        ps.PrinterName = prtdoc.PrinterSettings.PrinterName;

        // Set PageSize (if required)
        pgs.PaperSize = Aspose.Pdf.Printing.PaperSizes.A4;

        // Set PageMargins (if required)
        pgs.Margins = new Aspose.Pdf.Devices.Margins(0, 0, 0, 0);

        // Print document using printer and page settings
        viewer.PrintDocumentWithSettings(pgs, ps);
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void SimplePrint()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdfFacades_Printing();

    // Create PdfViewer object
    using var viewer = new Aspose.Pdf.Facades.PdfViewer();

    // Bind PDF document
    viewer.BindPdf(dataDir + "PrintDocument.pdf");

    // Set attributes for printing
    // Print the file with adjusted size
    viewer.AutoResize = true;
    // Print the file with adjusted rotation
    viewer.AutoRotate = true;
    // Do not produce the page number dialog when printing
    viewer.PrintPageDialog = false;

    // Create objects for printer and page settings and PrintDocument
    var ps = new Aspose.Pdf.Printing.PrinterSettings();
    var pgs = new Aspose.Pdf.Printing.PageSettings();
    var prtdoc = new System.Drawing.Printing.PrintDocument();

    // Set printer name
    ps.PrinterName = prtdoc.PrinterSettings.PrinterName;

    // Set PageSize (if required)
    pgs.PaperSize = Aspose.Pdf.Printing.PaperSizes.A4;

    // Set PageMargins (if required)
    pgs.Margins = new Aspose.Pdf.Devices.Margins(0, 0, 0, 0);

    // Print document using printer and page settings
    viewer.PrintDocumentWithSettings(pgs, ps);
}

为了显示打印对话框，请尝试使用以下代码片段：

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void PrintWithPrintDialog()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdfFacades_Printing();

    // Create PdfViewer object
    using (var viewer = new Aspose.Pdf.Facades.PdfViewer())
    {
        // Bind PDF document
        viewer.BindPdf(dataDir + "PrintDocument.pdf");

        // Set attributes for printing
        // Print the file with adjusted size
        viewer.AutoResize = true;
        // Print the file with adjusted rotation
        viewer.AutoRotate = true;
        // Do not produce the page number dialog when printing
        viewer.PrintPageDialog = false;

        var printDialog = new System.Windows.Forms.PrintDialog();
        if (printDialog.ShowDialog() == DialogResult.OK)
        {
            // Document printing code goes here

            // Convert PrinterSettings and PageSettings to Aspose.PDF counterparts via extension methods
            // provided in the Aspose.Pdf.Printing namespace
            Aspose.Pdf.Printing.PrinterSettings ps = printDialog.PrinterSettings.ToAsposePrinterSettings();
            Aspose.Pdf.Printing.PageSettings pgs = printDialog.PrinterSettings.DefaultPageSettings.ToAsposePageSettings();

            // Print document using printer and page settings
            viewer.PrintDocumentWithSettings(pgs, ps);
        }
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void PrintWithPrintDialog()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdfFacades_Printing();

    // Create PdfViewer object
    using var viewer = new Aspose.Pdf.Facades.PdfViewer();

    // Bind PDF document
    viewer.BindPdf(dataDir + "PrintDocument.pdf");

    // Set attributes for printing
    // Print the file with adjusted size
    viewer.AutoResize = true;
    // Print the file with adjusted rotation
    viewer.AutoRotate = true;
    // Do not produce the page number dialog when printing
    viewer.PrintPageDialog = false;

    var printDialog = new System.Windows.Forms.PrintDialog();
    if (printDialog.ShowDialog() == DialogResult.OK)
    {
        // Document printing code goes here

        // Convert PrinterSettings and PageSettings to Aspose.PDF counterparts via extension methods
        // provided in the Aspose.Pdf.Printing namespace
        Aspose.Pdf.Printing.PrinterSettings ps = printDialog.PrinterSettings.ToAsposePrinterSettings();
        Aspose.Pdf.Printing.PageSettings pgs = printDialog.PrinterSettings.DefaultPageSettings.ToAsposePageSettings();

        // Print document using printer and page settings
        viewer.PrintDocumentWithSettings(pgs, ps);
    }
}

根据 PDF 页面大小选择纸张来源

自 24.4 版本以来，可以在打印对话框中根据 PDF 页面大小选择纸张来源。下一个代码片段允许根据 PDF 的页面大小选择打印机托盘。

此偏好可以使用 Document.PickTrayByPdfSize 属性打开和关闭。

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void PickTrayByPdfSize()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdfFacades_Printing();

    // Create PDF document
    using (var document = new Aspose.Pdf.Document())
    {
        // Add page
        var page = document.Pages.Add();
        page.Paragraphs.Add(new Aspose.Pdf.Text.TextFragment("Hello world!"));

        // Set the flag to choose a paper tray using the PDF page size
        document.PickTrayByPdfSize = true;

        // Save PDF document
        document.Save(dataDir + "PickTrayByPdfSize_out.pdf");
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void PickTrayByPdfSize()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdfFacades_Printing();

    // Create PDF document
    using var document = new Aspose.Pdf.Document();

    // Add page
    var page = document.Pages.Add();
    page.Paragraphs.Add(new Aspose.Pdf.Text.TextFragment("Hello world!"));

    // Set the flag to choose a paper tray using the PDF page size
    document.PickTrayByPdfSize = true;

    // Save PDF document
    document.Save(dataDir + "PickTrayByPdfSize_out.pdf");
}