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)

const lut = [];
      for (let i = 0; i <= count; i++) {
        const t = i / count,
          t_ = 1 - t;
        lut.push(
          new Float32Array([
            t_ * t_ * t_,
            3 * t * t_ * t_,
            3 * t * t * t_,
            t * t * t,
          ])
        );
      }
      return lut;
    }
    const cache = [];
    
    return function getB(count) {
      if (!cache[count]) {
        cache[count] = buildB(count);
      }
      return cache[count];
    };
  })();
  function buildFigureFromPatch(mesh, index) {