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.setLineWidth(value);
          break;
        case "LC":
          this.setLineCap(value);
          break;
        case "LJ":
          this.setLineJoin(value);
          break;
        case "ML":
          this.setMiterLimit(value);
          break;
        case "D":
          this.setDash(value[0], value[1]);
          break;
        case "RI":
          this.setRenderingIntent(value);
          break;
        case "FL":
          this.setFlatness(value);
          break;
        case "Font":
          this.setFont(value[0], value[1]);
          break;
        case "CA":
          this.current.strokeAlpha = state[1];
          break;
        case "ca":
          this.current.fillAlpha = state[1];
          this.ctx.globalAlpha = state[1];
          break;