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)

xref,
      resources,
      pdfFunctionFactory,
      localColorSpaceCache,
    });
    this.cs = cs;
    const bbox = dict.getArray("BBox");
    if (Array.isArray(bbox) && bbox.length === 4) {
      this.bbox = Util.normalizeRect(bbox);
    } else {
      this.bbox = null;
    }
    let t0 = 0.0,
      t1 = 1.0;
    if (dict.has("Domain")) {
      const domainArr = dict.getArray("Domain");
      t0 = domainArr[0];
      t1 = domainArr[1];
    }
    let extendStart = false,
      extendEnd = false;
    if (dict.has("Extend")) {
      const extendArr = dict.getArray("Extend");
      extendStart = extendArr[0];
      extendEnd = extendArr[1];
    }
    if (
      this.shadingType === ShadingType.RADIAL &&
      (!extendStart || !extendEnd)
    ) {