Zoom in and out for a pdf file in a webbrowser control in c#

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Hi,

I am using a webbrowser control to show a local pdf file, and it works well.
One thing I have to figure out is I have to be able to zoom in or out in programmatically since I hide the toolbars from Adobe reader.

Does anyone know how to do it in programmatically?

TIA

Posted 27-Jun-11 9:45am

Member 7839509

Updated 2-Mar-16 5:46am

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Wonde Tadesse · Accepted Answer · 2011-06-27T15:54:00

You can pass Adobe commands as query string parameters to the web site link. E.g
http://myapp/mypdf.pdf?#zoom=100%&view=fit&navpanes=0&toolbar=0 will change zoom to 100 %, view to fit , no navigation panes and no tool bar.

For more look this [^] link.

EDITED

Well, accept the parameters from user input controls such as textbox or combobox. i.e

C#

private void button1_Click(object sender, System.EventArgs e)
{
    string zoomFactor = int.Parse(TextBox1.Text);
    WebBrowser1.Navigate("http://mpapp/mypdf/roles.pdf?#zoom=" + zoomFactor + "%&navpanes=0&toolbar=0");
}