Cara mencetak file PDF di .NET Core

Potongan kode berikut juga bekerja dengan pustaka Aspose.PDF.Drawing.

Mencetak dokumen Pdf di .NET Core

Pustaka Aspose.PDF memungkinkan kita untuk mengonversi file PDF ke XPS. Fungsi ini dapat berguna untuk mengatur pencetakan dokumen. Mari kita lihat contoh penggunaan printer default.

Dalam contoh ini, kita mengonversi dokumen PDF menjadi XPS dan menambahkannya sebagai pekerjaan ke antrean printer lokal:

.NET Core 3.1

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

    // Create the secondary thread and pass the printing method for
    // the constructor's ThreadStart delegate parameter.
    var printingThread = new Thread(() => PrintPDF(dataDir + "PrintDocument.pdf"));

    // Set the thread that will use PrintQueue.AddJob to single threading.
    printingThread.SetApartmentState(ApartmentState.STA);

    // Start the printing thread. The method passed to the Thread
    // constructor will execute.
    printingThread.Start();

    // Wait for the printing thread to finish its work
    printingThread.Join();
}

private static void PrintPDF(string pdfFileName)
{
    // Create print server and print queue.
    var defaultPrintQueue = LocalPrintServer.GetDefaultPrintQueue();

    // Convert PDF to XPS
    using (var document = new Aspose.Pdf.Document(pdfFileName))
    {
        var xpsFileName = pdfFileName.Replace(".pdf", ".xps");
        document.Save(xpsFileName, SaveFormat.Xps);

        // Print the Xps file while providing XPS validation and progress notifications.
        using (PrintSystemJobInfo xpsPrintJob = defaultPrintQueue.AddJob(xpsFileName, xpsFileName, false))
        {
            Console.WriteLine(xpsPrintJob.JobIdentifier);
        }
    }
}

.NET 8

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

    // Create the secondary thread and pass the printing method for
    // the constructor's ThreadStart delegate parameter.
    var printingThread = new Thread(() => PrintPDF(dataDir + "PrintDocument.pdf"));

    // Set the thread that will use PrintQueue.AddJob to single threading.
    printingThread.SetApartmentState(ApartmentState.STA);

    // Start the printing thread. The method passed to the Thread
    // constructor will execute.
    printingThread.Start();

    // Wait for the printing thread to finish its work
    printingThread.Join();
}

private static void PrintPDF(string pdfFileName)
{
    // Create print server and print queue.
    var defaultPrintQueue = LocalPrintServer.GetDefaultPrintQueue();

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

    // Convert PDF to XPS
    var xpsFileName = pdfFileName.Replace(".pdf", ".xps");
    document.Save(xpsFileName,SaveFormat.Xps);

    // Print the Xps file while providing XPS validation and progress notifications.
    using PrintSystemJobInfo xpsPrintJob = defaultPrintQueue.AddJob(xpsFileName, xpsFileName, false);
    Console.WriteLine(xpsPrintJob.JobIdentifier);
}

Memilih sumber kertas berdasarkan ukuran halaman PDF

Sejak rilis 24.4, memilih sumber kertas berdasarkan ukuran halaman PDF di dialog cetak adalah mungkin. Potongan kode berikut memungkinkan pemilihan baki printer berdasarkan ukuran halaman PDF.

Preferensi ini dapat diaktifkan dan dinonaktifkan menggunakan properti Document.PickTrayByPdfSize.

.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");
}

Preset Dialog Cetak Penskalaan Halaman

Potongan kode berikut dimaksudkan untuk memastikan bahwa properti PrintScaling diterapkan dan disimpan dengan benar dalam PDF.

Properti PrintScaling telah ditambahkan ke kelas Document dengan nilai ​​Aspose.Pdf.PrintScaling.AppDefault atau Aspose.Pdf.PrintScaling.None.

Opsi penskalaan halaman yang harus dipilih ketika dialog cetak ditampilkan untuk dokumen ini. Nilai yang valid adalah None, yang menunjukkan tidak ada penskalaan halaman, dan AppDefault, yang menunjukkan penskalaan cetak default pembaca yang sesuai. Jika entri ini memiliki nilai yang tidak dikenali, AppDefault harus digunakan. Nilai default: AppDefault.

.NET Core 3.1

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

    // Create PDF document
    using (var document = new Aspose.Pdf.Document())
    {
        // Add page
        document.Pages.Add();

        // Disable print scaling
        document.PrintScaling = PrintScaling.None;

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

.NET 8

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

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

    // Add page
    document.Pages.Add();

    // Disable print scaling
    document.PrintScaling = PrintScaling.None;

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

Mencetak beberapa dokumen PDF dalam satu pekerjaan cetak

Terkadang, perlu untuk mencetak beberapa dokumen terkait bersama-sama sebagai satu pekerjaan cetak. Ini memastikan bahwa dokumen-dokumen ini tidak tercampur dengan output dari pengguna lain, terutama dengan printer jaringan jarak jauh. Aspose.PDF mendukung pencetakan sejumlah dokumen dalam satu pekerjaan cetak dengan pengaturan printer yang dibagikan melalui metode statis PrintDocuments dari kelas PdfViewer. Dokumen yang akan dicetak dapat diberikan sebagai jalur file, aliran dokumen, atau objek Document.

Saat mencetak beberapa dokumen, properti PrinterSettings.PrintRange diabaikan, dan semua dokumen dicetak secara penuh.

.NET Core 3.1

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

    // Paths to documents to be printed
    var path1 = dataDir + "PrintDocument.pdf";
    var path2 = dataDir + "Print-PageRange.pdf";
    var path3 = dataDir + "35925_1_3.xps";
    
    // Set up printer and page settings
    var printDocument = new System.Drawing.Printing.PrintDocument();
    Aspose.Pdf.Printing.PrinterSettings printerSettings = new Aspose.Pdf.Printing.PrinterSettings();
    printerSettings.PrinterName = printDocument.PrinterSettings.PrinterName;
    
    Aspose.Pdf.Printing.PageSettings pageSettings = new Aspose.Pdf.Printing.PageSettings();
    pageSettings.PaperSize = Aspose.Pdf.Printing.PaperSizes.A4;
    pageSettings.Margins = new Aspose.Pdf.Devices.Margins(0, 0, 0, 0);
    
    // Print multiple documents in a single print job
    Aspose.Pdf.Facades.PdfViewer.PrintDocuments(printerSettings, pageSettings, path1, path2, path3);
}

.NET 8

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

    // Paths to documents to be printed
    var path1 = dataDir + "PrintDocument.pdf";
    var path2 = dataDir + "Print-PageRange.pdf";
    var path3 = dataDir + "35925_1_3.xps";
    
    // Set up printer and page settings
    var printDocument = new System.Drawing.Printing.PrintDocument();
    Aspose.Pdf.Printing.PrinterSettings printerSettings = new Aspose.Pdf.Printing.PrinterSettings
    {
        PrinterName = printDocument.PrinterSettings.PrinterName
    };
    
    Aspose.Pdf.Printing.PageSettings pageSettings = new Aspose.Pdf.Printing.PageSettings
    {
        PaperSize = Aspose.Pdf.Printing.PaperSizes.A4,
        Margins = new Aspose.Pdf.Devices.Margins(0, 0, 0, 0)
    };
    
    // Print multiple documents in a single print job
    Aspose.Pdf.Facades.PdfViewer.PrintDocuments(printerSettings, pageSettings, path1, path2, path3);
}