This is a regression from PR #4615. The underscore for the last 2 chars in "NUMERO D’IMMATRICULATION" is too bold.

URL: http://www.ameli.fr/fileadmin/user_upload/formulaires/S3706.pdf
1.1.215: https://i.imgur.com/up8Y33j.png
0.8.990: https://i.imgur.com/UioZcLB.png

fc1e2483b433134a538cce0acd0ccc76e335cf5f is the first bad commit
commit fc1e2483b433134a538cce0acd0ccc76e335cf5f
Author: Jonas Jenwald
Date:   Fri Apr 11 20:19:39 2014 +0200

```
Enforce minimum line widths
```

if (this._cachedGetSinglePixelWidth === null) {
        
        
        
        
        
        
        
        
        
         T
          
        const m = this.ctx.mozCurrentTransform;
        const sqDet = (m[0] * m[3] - m[2] * m[1]) ** 2;
        const sqNorm1 = m[0] ** 2 + m[2] ** 2;
        const sqNorm2 = m[1] ** 2 + m[3] ** 2;
        if (sqNorm1 !== sqNorm2 && sqNorm1 > sqDet && sqNorm2 > sqDet) {
           T
           a
           b
           w
          this._cachedGetSinglePixelWidth = -1;
        } else if (sqDet > Number.EPSILON ** 2) {
           T
           a 
          this._cachedGetSinglePixelWidth =
            Math.sqrt(Math.max(sqNorm1, sqNorm2) / sqDet) * 1.0000001;