Cropping Images in Google Slides using Google Apps Script

function main() {
  // Top
  const cropTop_ = (obj) => {
    const temp = obj.image
      .duplicate()
      .setHeight(obj.imagePositionTop + obj.imageHeight)
      .asImage()
      .replace(obj.image.getBlob(), true)
      .setTop(0);
    obj.image.remove();
    obj.image = temp;
  };

  // Bottom
  const cropBottom_ = (obj) => {
    const temp = obj.image
      .duplicate()
      .setHeight(obj.pageHeight - obj.imagePositionTop)
      .asImage()
      .replace(obj.image.getBlob(), true);
    obj.image.remove();
    obj.image = temp;
  };

  // Left
  const cropLeft_ = (obj) => {
    const temp = obj.image
      .duplicate()
      .setWidth(obj.imagePositionLeft + obj.imageWidth)
      .asImage()
      .replace(obj.image.getBlob(), true)
      .setLeft(0);
    obj.image.remove();
    obj.image = temp;
  };

  // Right
  const cropRight_ = (obj) => {
    const temp = obj.image
      .duplicate()
      .setWidth(obj.pageWidth - obj.imagePositionLeft)
      .asImage()
      .replace(obj.image.getBlob(), true);
    obj.image.remove();
    obj.image = temp;
  };

  const getParams_ = (s, image) => {
    const obj = {
      image: image,
      pageHeight: s.getPageHeight(),
      pageWidth: s.getPageWidth(),
      imagePositionLeft: image.getLeft(),
      imagePositionTop: image.getTop(),
      imageWidth: image.getWidth(),
      imageHeight: image.getHeight(),
    };
    obj.checkRight = obj.imagePositionLeft + obj.imageWidth - obj.pageWidth;
    obj.checkBottom = obj.imagePositionTop + obj.imageHeight - obj.pageHeight;
    return obj;
  };

  const s = SlidesApp.getActivePresentation();
  const slide = s.getSlides()[0]; // 1st page
  const images = slide.getImages();

  images.forEach((image) => {
    const obj = getParams_(s, image);

    // Top
    if (
      obj.imagePositionTop < 0 &&
      obj.imagePositionTop + obj.imageHeight > 0
    ) {
      cropTop_(obj);
    }
    // Bottom
    if (obj.checkBottom > 0 && obj.checkBottom < obj.imageHeight) {
      cropBottom_(obj);
    }
    // Left
    if (
      obj.imagePositionLeft < 0 &&
      obj.imagePositionLeft + obj.imageWidth > 0
    ) {
      cropLeft_(obj);
    }
    // Right
    if (obj.checkRight > 0 && obj.checkRight < obj.imageWidth) {
      cropRight_(obj);
    }
  });
}