Create a PDF page tree structure in C# and VB.NET

Name: GemBox.Pdf
Author: GemBox Ltd.

The following example shows how you can use the GemBox.Pdf library to create a PDF page tree structure from scratch in your C# or VB.NET application.

using GemBox.Pdf;
using GemBox.Pdf.Content;

// If using the Professional version, put your serial key below.
ComponentInfo.SetLicense("FREE-LIMITED-KEY");

using (var document = new PdfDocument())
{
    using (var formattedText = new PdfFormattedText())
    {
        // Get a page tree root node.
        var rootNode = document.Pages;
        // Set page rotation for a whole set of pages.
        rootNode.Rotate = 90;

        // Create a left page tree node.
        var childNode = rootNode.Kids.AddPages();
        // Overwrite a parent tree node rotation value.
        childNode.Rotate = 0;

        // Create a first page.
        var page = childNode.Kids.AddPage();
        formattedText.Append("FIRST PAGE");
        page.Content.DrawText(formattedText, new PdfPoint(0, 0));

        // Create a second page and set a page media box value.
        page = childNode.Kids.AddPage();
        page.SetMediaBox(0, 0, 200, 400);
        formattedText.Clear();
        formattedText.Append("SECOND PAGE");
        page.Content.DrawText(formattedText, new PdfPoint(0, 0));

        // Create a right page tree node.
        childNode = rootNode.Kids.AddPages();
        // Set a media box value.
        childNode.SetMediaBox(0, 0, 100, 200);

        // Create a third page.
        page = childNode.Kids.AddPage();
        formattedText.Clear();
        formattedText.Append("THIRD PAGE");
        page.Content.DrawText(formattedText, new PdfPoint(0, 0));

        // Create a fourth page and overwrite a rotation value.
        page = childNode.Kids.AddPage();
        page.Rotate = 0;
        formattedText.Clear();
        formattedText.Append("FOURTH PAGE");
        page.Content.DrawText(formattedText, new PdfPoint(0, 0));
    }

    document.Save("Page Tree.pdf");
}

Imports GemBox.Pdf
Imports GemBox.Pdf.Content

Module Program

    Sub Main()

        ' If using the Professional version, put your serial key below.
        ComponentInfo.SetLicense("FREE-LIMITED-KEY")

        Using document = New PdfDocument()

            Using formattedText = New PdfFormattedText()

                ' Get a page tree root node.
                Dim rootNode = document.Pages
                ' Set page rotation for a whole set of pages.
                rootNode.Rotate = 90

                ' Create a left page tree node.
                Dim childNode = rootNode.Kids.AddPages()
                ' Overwrite a parent tree node rotation value.
                childNode.Rotate = 0

                ' Create a first page.
                Dim page = childNode.Kids.AddPage()
                formattedText.Append("FIRST PAGE")
                page.Content.DrawText(formattedText, New PdfPoint(0, 0))

                ' Create a second page and set a page media box value.
                page = childNode.Kids.AddPage()
                page.SetMediaBox(0, 0, 200, 400)
                formattedText.Clear()
                formattedText.Append("SECOND PAGE")
                page.Content.DrawText(formattedText, New PdfPoint(0, 0))

                ' Create a right page tree node.
                childNode = rootNode.Kids.AddPages()
                ' Set a media box value.
                childNode.SetMediaBox(0, 0, 100, 200)

                ' Create a third page.
                page = childNode.Kids.AddPage()
                formattedText.Clear()
                formattedText.Append("THIRD PAGE")
                page.Content.DrawText(formattedText, New PdfPoint(0, 0))

                ' Create a fourth page and overwrite a rotation value.
                page = childNode.Kids.AddPage()
                page.Rotate = 0
                formattedText.Clear()
                formattedText.Append("FOURTH PAGE")
                page.Content.DrawText(formattedText, New PdfPoint(0, 0))
            End Using

            document.Save("Page Tree.pdf")
        End Using
    End Sub
End Module

A PDF page tree created with GemBox.Pdf C#/VB.NET library — Screenshot of a PDF page tree structure created in .NET

Create a PDF page tree structure in C# and VB.NET

See also

Next steps