1. GroupDocs Documentation
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    3. GroupDocs.Viewer Product Family
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    5. GroupDocs.Viewer for Java
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    7. Developer Guide
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    9. Render documents
    10. /
    11. Render to PNG or JPEG
    12. /
    13. Set image size limits

    Set image size limits

    The PngViewOptions and JpgViewOptions classes implement the IMaxSizeOptions interface that contains 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();
}
    Warning
    If you call the setImageWidth/setImageHeight options, calls of the setImageMaxWidth/setImageMaxHeight methods are ignored.

    To set the ImageMaxWidth/ImageMaxHeight options, follow these steps:

    1. Instantiate the Viewer object.
    2. Instantiate the PngViewOptions or JpgViewOptions object.
    3. Call the setMaxWidth and/or setMaxHeight methods.
    4. Call the View.view() method.

    The following code snippet shows how to set the output image size limits:

    import com.groupdocs.viewer.Viewer;
import com.groupdocs.viewer.options.JpgViewOptions;
// ...

try (Viewer viewer = new Viewer("sample.jpg")) {
    JpgViewOptions viewOptions = new JpgViewOptions("result_{0}.jpg");
    // PngViewOptions viewOptions = new PngViewOptions("result_{0}.png");
    // Specify the maximum width and height.
    viewOptions.setMaxWidth(800);
    viewOptions.setMaxHeight(600);

    viewer.view(viewOptions);
}
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