Memperbarui, Menghapus, dan Mendapatkan Bookmark

Memperbarui Bookmark yang Ada dalam File PDF

Untuk memperbarui bookmark yang ada dalam file PDF, Anda perlu menggunakan metode ModifyBookmarks. Metode ini mengambil dua argumen: judul sumber (judul bookmark yang akan dimodifikasi), judul tujuan (judul yang akan diganti). Anda perlu membuat objek dari kelas PdfBookmarkEditor dan mengikat file PDF input menggunakan metode BindPdf. Setelah itu, Anda perlu memanggil metode ModifyBookmarks, dan kemudian menyimpan PDF yang diperbarui menggunakan metode Save. Potongan kode berikut menunjukkan cara memodifikasi bookmark yang ada dalam file PDF.

.NET Core 3.1

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

    // Create an instance of PdfBookmarkEditor
    using (var bookmarkEditor = new Aspose.Pdf.Facades.PdfBookmarkEditor())
    {
        // Bind PDF document
        bookmarkEditor.BindPdf(dataDir + "UpdateBookmark.pdf");

        // Modify the existing bookmark, assigning a new title
        bookmarkEditor.ModifyBookmarks("New Bookmark", "New Title");

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

.NET 8

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

    // Create an instance of PdfBookmarkEditor
    using var bookmarkEditor = new Aspose.Pdf.Facades.PdfBookmarkEditor();

    // Bind PDF document
    bookmarkEditor.BindPdf(dataDir + "UpdateBookmark.pdf");

    // Modify the existing bookmark, assigning a new title
    bookmarkEditor.ModifyBookmarks("New Bookmark", "New Title");

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

Menghapus Semua Bookmark dari File PDF

Anda dapat menghapus semua bookmark dari file PDF menggunakan metode DeleteBookmarks tanpa parameter apa pun. Pertama-tama, Anda perlu membuat objek dari kelas PdfBookmarkEditor dan mengikat file PDF input menggunakan metode BindPdf. Setelah itu, Anda perlu memanggil metode DeleteBookmarks dan kemudian menyimpan file PDF yang diperbarui menggunakan metode Save. Potongan kode berikut menunjukkan cara menghapus semua bookmark dari file PDF.

.NET Core 3.1

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

    // Create an instance of PdfBookmarkEditor
    using (var bookmarkEditor = new Aspose.Pdf.Facades.PdfBookmarkEditor())
    {
        // Bind PDF document
        bookmarkEditor.BindPdf(dataDir + "DeleteAllBookmarks.pdf");

        // Delete all bookmarks in the document
        bookmarkEditor.DeleteBookmarks();

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

.NET 8

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

    // Create an instance of PdfBookmarkEditor
    using var bookmarkEditor = new Aspose.Pdf.Facades.PdfBookmarkEditor();

    // Bind PDF document
    bookmarkEditor.BindPdf(dataDir + "DeleteAllBookmarks.pdf");

    // Delete all bookmarks in the document
    bookmarkEditor.DeleteBookmarks();

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

Menghapus Bookmark Tertentu dari File PDF

Untuk menghapus bookmark tertentu, Anda perlu memanggil metode DeleteBookmarks dengan parameter string (judul). judul di sini mewakili bookmark yang akan dihapus dari PDF. Buat objek dari kelas PdfBookmarkEditor dan ikat file PDF input menggunakan metode BindPdf. Setelah itu, panggil metode DeleteBookmarks dan kemudian simpan file PDF yang diperbarui menggunakan metode Save. Potongan kode berikut menunjukkan cara menghapus bookmark tertentu dari file PDF.

.NET Core 3.1

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

    // Create an instance of PdfBookmarkEditor
    using (var bookmarkEditor = new Aspose.Pdf.Facades.PdfBookmarkEditor())
    {
        // Bind PDF document
        bookmarkEditor.BindPdf(dataDir + "DeleteABookmark.pdf");

        // Delete a bookmark with the title "Page2"
        bookmarkEditor.DeleteBookmarks("Page2");

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

.NET 8

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

    // Create an instance of PdfBookmarkEditor
    using var bookmarkEditor = new Aspose.Pdf.Facades.PdfBookmarkEditor();

   // Bind PDF document
    bookmarkEditor.BindPdf(dataDir + "DeleteABookmark.pdf");

    // Delete a bookmark with the title "Page2"
    bookmarkEditor.DeleteBookmarks("Page2");

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

Mendapatkan Bookmark dari Facades Dokumen PDF

Kelas PdfBookmarkEditor menyediakan fitur untuk memanipulasi Bookmark dalam file PDF yang ada. Ini menyediakan berbagai properti untuk mendapatkan/mengatur informasi terkait bookmark. Potongan kode berikut menunjukkan cara mendapatkan informasi terkait setiap bookmark dalam file PDF.

.NET Core 3.1

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

    // Create an instance of PdfBookmarkEditor
    using (var bookmarkEditor = new Aspose.Pdf.Facades.PdfBookmarkEditor())
    {
        // Bind PDF document
        bookmarkEditor.BindPdf(dataDir + "GetFromPDF.PDF");

        // Extract all bookmarks from the document
        Aspose.Pdf.Facades.Bookmarks bookmarks = bookmarkEditor.ExtractBookmarks();

        // Iterate through each bookmark and display information
        foreach (Aspose.Pdf.Facades.Bookmark bookmark in bookmarks)
        {
            // Get the title information of bookmark item
            Console.WriteLine("Title: {0}", bookmark.Title);

            // Get the destination page for bookmark
            Console.WriteLine("Page Number: {0}", bookmark.PageNumber);

            // Get the information related to associated action with bookmark
            Console.WriteLine("Bookmark Action: " + bookmark.Action);
        }
    }
}

.NET 8

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

    // Create an instance of PdfBookmarkEditor
    using var bookmarkEditor = new Aspose.Pdf.Facades.PdfBookmarkEditor();

    // Bind PDF document
    bookmarkEditor.BindPdf(dataDir + "GetFromPDF.PDF");

    // Extract all bookmarks from the document
    Aspose.Pdf.Facades.Bookmarks bookmarks = bookmarkEditor.ExtractBookmarks();

    // Iterate through each bookmark and display information
    foreach (Aspose.Pdf.Facades.Bookmark bookmark in bookmarks)
    {
        // Get the title information of bookmark item
        Console.WriteLine("Title: {0}", bookmark.Title);

        // Get the destination page for bookmark
        Console.WriteLine("Page Number: {0}", bookmark.PageNumber);

        // Get the information related to associated action with bookmark
        Console.WriteLine("Bookmark Action: " + bookmark.Action);
    }
}

Mengekstrak Bookmark dari File PDF yang Ada

Metode ExtractBookmarks memungkinkan Anda untuk mengekstrak bookmark dari file PDF. Untuk mengekstrak bookmark, Anda perlu membuat objek PdfBookmarkEditor dan mengikat file PDF menggunakan metode BindPdf. Setelah itu, Anda perlu memanggil metode ExtractBookmarks. Metode ExtractBookmarks mengembalikan objek Bookmarks. Anda kemudian dapat melakukan loop melalui bookmark ini dan mendapatkan objek Bookmark individu. Akhirnya, Anda dapat mengekspor bookmark ke file XML menggunakan metode ExportBookmarksToXML. Potongan kode berikut menunjukkan cara mengekspor bookmark ke file XML.

.NET Core 3.1

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

    // Create an instance of PdfBookmarkEditor
    using (var bookmarkEditor = new Aspose.Pdf.Facades.PdfBookmarkEditor())
    {
        // Bind PDF document
        bookmarkEditor.BindPdf(dataDir + "ExtractBookmarks.pdf");

        // Extract bookmarks from the document
        Aspose.Pdf.Facades.Bookmarks bookmarks = bookmarkEditor.ExtractBookmarks();

        // Iterate through each extracted bookmark
        foreach (Aspose.Pdf.Facades.Bookmark bookmark in bookmarks)
        {
            // Get the title information of bookmark item
            Console.WriteLine("Title: {0}", bookmark.Title);

            // Get the destination page for bookmark
            Console.WriteLine("Page Number: {0}", bookmark.PageNumber);
        }

        // Export bookmarks to an XML file
        bookmarkEditor.ExportBookmarksToXML(dataDir + "bookmarks.xml");
    }
}

.NET 8

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

    // Create an instance of PdfBookmarkEditor
    using var bookmarkEditor = new Aspose.Pdf.Facades.PdfBookmarkEditor();

    // Bind PDF document
    bookmarkEditor.BindPdf(dataDir + "ExtractBookmarks.pdf");

    // Extract bookmarks from the document
    Aspose.Pdf.Facades.Bookmarks bookmarks = bookmarkEditor.ExtractBookmarks();

    // Iterate through each extracted bookmark
    foreach (Aspose.Pdf.Facades.Bookmark bookmark in bookmarks)
    {
        // Get the title information of bookmark item
        Console.WriteLine("Title: {0}", bookmark.Title);

        // Get the destination page for bookmark
        Console.WriteLine("Page Number: {0}", bookmark.PageNumber);
    }

    // Export bookmarks to an XML file
    bookmarkEditor.ExportBookmarksToXML(dataDir + "bookmarks.xml");
}