Set image size limits
GroupDocs.Viewer also provides the feature to set limits for width/height for the output image. Follow the below steps to achieve this functionality. If you set MaxWidth/MaxHeight options, if the image exceeds one of these limits - it will be resized proportionally.
Instantiate the Viewer object;
Instantiate the PngViewOptions or JpgViewOptions;
Set MaxWidth and/or MaxHeight values;
Call View method.
The following code sample shows how to set the output image size limits when rendering the document.
using (Viewer viewer = new Viewer("sample.jpg"))
{
JpgViewOptions viewOptions = new JpgViewOptions("result_{0}.jpg");
//PngViewOptions viewOptions = new PngViewOptions("result_{0}.png");
viewOptions.MaxWidth = 800;
viewOptions.MaxHeight = 600;
viewer.View(viewOptions);
}
PngViewOptions and JpgViewOptions implement special interface IMaxSizeOptions, which contain properties for size limits.
/// <summary>
/// Limits of image size options interface.
/// </summary>
public interface IMaxSizeOptions
{
/// <summary>
/// Max width of an output image in pixels.
/// </summary>
int MaxWidth { get; set; }
/// <summary>
/// Max height of an output image in pixels.
/// </summary>
int MaxHeight { get; set; }
}
If you set Width/Height in options, MaxWidth/MaxHeight options will be ignored.