hello,
this pdf file created with Adobe InDesign, alot of elements are missing, also wrong color are displaying:
http://tal-ram.co.il/images/products/orders/14265798291.pdf

![viewer](https://cloud.githubusercontent.com/assets/1198143/6713275/f88ae242-cd99-11e4-8202-fdb5dc4b132e.png)

![org](https://cloud.githubusercontent.com/assets/1198143/6713312/24d83ff2-cd9a-11e4-82e7-647ad5440a64.png)

entry.x,
        entry.y,
        entry.w,
        entry.h,
        0,
        -1,
        1,
        1
      );
      if (this.imageLayer) {
        const position = this.getCanvasPosition(entry.x, entry.y);
        this.imageLayer.appendImage({
          imgData,
          left: position[0],
          top: position[1],
          width: w,
          height: h,
        });
      }
      ctx.restore();
    }
  }
  paintSolidColorImageMask() {
    if (!this.contentVisible) {
      return;
    }
    this.ctx.fillRect(0, 0, 1, 1);
  }
  
  markPoint(tag) {