I'm sorry if it's a duplicate, I found lots of issues with gradients but none of the open ones looks similar.
It's apparently the PDF code `/Matrix [440 0 0 -200 20 220]` (line 44 in both files) that causes the problem.

**Configuration:**
- Web browser and its version: Chrome 54
- Operating system and its version: Windows 10
- PDF.js version: 1.6.343

**Steps to reproduce the problem:**
Open attached files:
[radial.pdf](https://github.com/mozilla/pdf.js/files/610302/radial.pdf)
[linear.pdf](https://github.com/mozilla/pdf.js/files/610300/linear.pdf)

**What is the expected behavior?** (Adobe Reader 11)
![image](https://cloud.githubusercontent.com/assets/17966696/20583379/fa80d780-b1f1-11e6-85d2-62dd6970a08c.png)

**What went wrong?** (mozilla.github.io/pdf.js/web/viewer.html)
Gradients aren't correctly transformed
![image](https://cloud.githubusercontent.com/assets/17966696/20583361/cf5bb8a4-b1f1-11e6-9479-9cc606b41187.png)

}
  Mesh.prototype = {
    getIR: function Mesh_getIR() {
      return [
        "Mesh",
        this.shadingType,
        this.coords,
        this.colors,
        this.figures,
        this.bounds,
        this.matrix,
        this.bbox,
        this.background,
      ];
    },
  };
  return Mesh;
})();
Shadings.Dummy = (function DummyClosure() {
  function Dummy() {
    this.type = "Pattern";
  }
  Dummy.prototype = {
    getIR: function Dummy_getIR() {
      return ["Dummy"];
    },
  };
  return Dummy;
})();
function getTilingPatternIR(operatorList, dict, color) {