Attach (recommended) or Link to PDF file here:
https://web.archive.org/web/20091223123331/http://sci2s.ugr.es/keel/pdf/specific/articulo/alp99.pdf
(aka `tests/pdfs/issue1936.pdf`)
 
When I copy/paste the multiplication sign on the first line of the first page, I got a `£`.
And when I do the same in evince I got a `×` (the same in chrome).
The font descriptor is:
```
<< /Ascent 0 /CapHeight 749 /CharSet (/multiply) /Descent 0 /Flags 262212 /FontBBox [ -27 -940 1332 825 ] /FontFile3 59 0 R /FontName /KHPEPJ+CMBSY10 /ItalicAngle -14.035 /StemV 0 /Type /FontDescriptor >>
```
So it should be possible to guess the correct character in using the `CharSet` entry:
https://www.adobe.com/content/dam/acom/en/devnet/pdf/pdfs/PDF32000_2008.pdf#page=291


}
      
      return (charsCache[charsCacheKey] = glyphs);
    },
    /**
     * Chars can have different sizes (depends on the encoding).
     * @param {String} a string encoded with font encoding.
     * @returns {Array<Array<number>>} the positions of each char in the string.
     */
    getCharPositions(chars) {
      
      
      const positions = [];
      if (this.cMap) {
        const c = Object.create(null);
        let i = 0;
        while (i < chars.length) {
          this.cMap.readCharCode(chars, i, c);
          const length = c.length;
          positions.push([i, i + length]);
          i += length;
        }
      } else {
        for (let i = 0, ii = chars.length; i < ii; ++i) {
          positions.push([i, i + 1]);
        }
      }
      return positions;
    },
    get glyphCacheValues() {