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): ?

this.save();
    if (this.baseTransform) {
      this.ctx.setTransform.apply(this.ctx, this.baseTransform);
    }
  }
  endAnnotations() {
    this.restore();
  }
  beginAnnotation(id, rect, transform, matrix) {
    this.save();
    resetCtxToDefault(this.ctx);
    this.current = new CanvasExtraState();
    if (Array.isArray(rect) && rect.length === 4) {
      const width = rect[2] - rect[0];
      const height = rect[3] - rect[1];
      this.ctx.rect(rect[0], rect[1], width, height);
      this.clip();
      this.endPath();
    }
    this.transform.apply(this, transform);
    this.transform.apply(this, matrix);
  }
  endAnnotation() {
    this.restore();
  }
  paintImageMaskXObject(img) {