PdfViewer.CreateThumbnail

Namespace:

ceTe.DynamicPDF.Viewer

Assemblies:

DynamicPDF.Viewer.dll

Create a thumbnail for the page number specified as parameter and returns a Bitmap of size best fit within provided size parameter.

public Bitmap CreateThumbnail(int pageNumber, Size bitmapSize)

Function CreateThumbnail(pageNumber As Integer, bitmapSize As Size) As Bitmap

Parameters

Returns

Licensing Info

This method is a DynamicPDF Viewer feature. One of the following is required for non-evaluation usage:

• An active DynamicPDF Subscription
• An active DynamicPDF Professional or Professional Plus Subscription with DynamicPDF Viewer selected.
• A DynamicPDF Viewer for .NET v3.X Developer license.

Examples

Imports System
Imports System.Windows.Forms
Imports ceTe.DynamicPDF.Viewer

Public Class Form1
    Inherits System.Windows.Forms.Form

    Private MyPdfViewer As PdfViewer

    Sub New()
        InitializeComponent()
    End Sub

    Private Sub InitializeComponent()
        Me.MyPdfViewer = New PdfViewer()
        Me.Controls.Add(MyPdfViewer)
    End Sub

    Shared Sub Main()
        Application.Run(New Form1())
    End Sub			
    
	Private Sub CreateThumbnail()
		Dim thumb As System.Drawing.Bitmap
		' Open document in viewer.
		MyPdfViewer.Open("C:\MyDocument.pdf")

		' Create a Thumbnail.
		' PageNumber ranges from '1' to 'count' of the pages in the document.
		' Size of thumb will be such that the longer edge will be 200 pixcels.
		thumb = MyPdfViewer.CreateThumbnail(1, New  new Size(200, 200))
		thumb.Save("C:\MyThumb.png")
	End Sub

End Class						

using System;
using System.Windows.Forms;
using ceTe.DynamicPDF.Viewer;

namespace DynamicPDFViewerDemo
{
    public class Form1 : Form
    {
        private ceTe.DynamicPDF.Viewer.PdfViewer dpdfViewer;

        public Form1()
        {
            InitializeComponent();
        }

        [STAThread]
        static void Main()
        {
            Application.Run(new Form1());
        }		
			
        private void InitializeComponent()
        {
            this.dpdfViewer = new PdfViewer();
            this.Controls.Add(dpdfViewer);
        }

        private void NavigateToPagenumber()
        {
            // Open document in viewer.
            Open(@"C:\MyDocument.pdf");

            // Create a Thumbnail
			// PageNumber ranges from '1' to 'count' of the pages in the document.
			// Size of thumb will be such that the longer edge will be 200 pixcels.
            System.Drawing.Bitmap thumb = CreateThumbnail(1, new  new Size(200, 200));
            thumb.Save(@"C:\MyThumb.png");
        }
    }
}

Remarks

The page number should be a non zero based index. The size may not be same as provided as parameter but it will fit within the box of the provided size.

See Also