Attach (recommended) or Link to PDF file here: https://www.recom-power.com/pdf/Powerline-AC-DC/RAC05-K.pdf

Configuration:
- Web browser and its version: Firefox 56.0 (64-bit)
- Operating system and its version: Windows 10 with OS Build 15063.632
- PDF.js version: ?
- Is an extension: Built-in

Steps to reproduce the problem:
1. Open Page

What is the expected behavior? To properly render the first page. 
![image](https://user-images.githubusercontent.com/1151969/31415345-b1504022-add7-11e7-855b-8030a308f7a2.png)

What went wrong? Renders poorly.
![image](https://user-images.githubusercontent.com/1151969/31415363-d8842096-add7-11e7-818d-728c1102891b.png)

Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension): ?

}
    const scaled = this._scaleImage(imgToPaint, ctx.mozCurrentTransformInverse);
    ctx.imageSmoothingEnabled = getImageSmoothingEnabled(
      ctx.mozCurrentTransform,
      imgData.interpolate
    );
    ctx.drawImage(
      scaled.img,
      0,
      0,
      scaled.paintWidth,
      scaled.paintHeight,
      0,
      -height,
      width,
      height
    );
    if (this.imageLayer) {
      const position = this.getCanvasPosition(0, -height);
      this.imageLayer.appendImage({
        imgData,
        left: position[0],
        top: position[1],
        width: width / ctx.mozCurrentTransformInverse[0],
        height: height / ctx.mozCurrentTransformInverse[3],
      });
    }
    this.restore();
  }
  paintInlineImageXObjectGroup(imgData, map) {