''' <summary>
''' Gets PDF page with 300x300 resolution.
''' </summary>
''' <param name="page">The page of PDF document.</param>
Public Shared Function GetImage300dpi(page As Vintasoft.Imaging.Pdf.Tree.PdfPage) As Vintasoft.Imaging.VintasoftImage
    ' get the rendering settings of PDF document
    Dim renderingSettings As Vintasoft.Imaging.Codecs.Decoders.PdfRenderingSettings = page.Document.RenderingSettings
    ' save previous resolution of rendering settings
    Dim prevResolution As Vintasoft.Imaging.Resolution = renderingSettings.Resolution
    ' set new resolution for image rendering
    renderingSettings.Resolution = New Vintasoft.Imaging.Resolution(300, 300)

    ' render image of the page
    Dim image As Vintasoft.Imaging.VintasoftImage = page.Render()

    ' restore resolution of rendering settings
    renderingSettings.Resolution = prevResolution

    ' return the image
    Return image
End Function

/// <summary>
/// Gets PDF page with 300x300 resolution.
/// </summary>
/// <param name="page">The page of PDF document.</param>
public static Vintasoft.Imaging.VintasoftImage GetImage300dpi(
    Vintasoft.Imaging.Pdf.Tree.PdfPage page)
{
    // get the rendering settings of PDF document
    Vintasoft.Imaging.Codecs.Decoders.PdfRenderingSettings renderingSettings = page.Document.RenderingSettings;
    // save previous resolution of rendering settings
    Vintasoft.Imaging.Resolution prevResolution = renderingSettings.Resolution;
    // set new resolution for image rendering
    renderingSettings.Resolution = new Vintasoft.Imaging.Resolution(300, 300);

    // render image of the page
    Vintasoft.Imaging.VintasoftImage image = page.Render();

    // restore resolution of rendering settings
    renderingSettings.Resolution = prevResolution;

    // return the image
    return image;
}