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.

try (Viewer viewer = new Viewer("sample.jpg")) {
    JpgViewOptions viewOptions = new JpgViewOptions("result_{0}.jpg");
    //PngViewOptions viewOptions = new PngViewOptions("result_{0}.png");

    viewOptions.setMaxWidth(800);
    viewOptions.setMaxHeight(600);

    viewer.view(viewOptions);
}

PngViewOptions and JpgViewOptions implement special interface IMaxSizeOptions, which contain properties for size limits.

/**
 * Limits of image size options interface.
 */
public interface IMaxSizeOptions {
    /**
     * Max width of an output image in pixels.
     */
    int getMaxWidth();
    /**
     * Max width of an output image in pixels.
     */
    int setMaxWidth();
    /**
     * Max height of an output image in pixels.
     */
    int getMaxHeight();
    /**
     * Max height of an output image in pixels.
     */
    int setMaxHeight();
}

Note: If you set Width/Height in options, MaxWidth/MaxHeight options will be ignored.

Get text coordinates Rendering to PDF