问Itext7 -裁剪图像

EN

public Image cropImage(PdfWriter writer, Image image, float leftReduction, float rightReduction, float topReduction, float bottomReduction) throws DocumentException {
    float width = image.getScaledWidth();
    float height = image.getScaledHeight();
    PdfTemplate template = writer.getDirectContent().createTemplate(
            width - leftReduction - rightReduction,
            height - topReduction - bottomReduction);
    template.addImage(image,
            width, 0, 0,
            height, -leftReduction, -bottomReduction);
    return Image.getInstance(template);
}