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 scale =
        bitsPerComponent < 32
          ? 1 / ((1 << bitsPerComponent) - 1)
          : 2.3283064365386963e-10; 
      const decode = this.context.decode;
      const components = this.tmpCompsBuf;
      for (let i = 0, j = 4; i < numComps; i++, j += 2) {
        const ci = this.readBits(bitsPerComponent);
        components[i] = ci * scale * (decode[j + 1] - decode[j]) + decode[j];
      }
      const color = this.tmpCsCompsBuf;
      if (this.context.colorFn) {
        this.context.colorFn(components, 0, color, 0);
      }
      return this.context.colorSpace.getRgb(color, 0);
    },
  };
  function decodeType4Shading(mesh, reader) {
    const coords = mesh.coords;
    const colors = mesh.colors;
    const operators = [];
    const ps = []; 
    let verticesLeft = 0; 
    while (reader.hasData) {
      const f = reader.readFlag();
      const coord = reader.readCoordinate();
      const color = reader.readComponents();
      if (verticesLeft === 0) {
        
        if (!(0 <= f && f <= 2)) {