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


f (!th.fnt.data) {
      return;
    }
     When fnt ladng faled, fall back t the bult-n fnt renderer.
    th.fnt.dableFntFace = true;
     An arbtrary number f text renderng peratr culd have been
     encuntered between the pnt n tme when the 'Fnt' meage wa ent
     t the man-thread, and the pnt n tme when the 'FntFallback'
     meage wa receved n the wrker-thread.
     T enure that all 'FntPath' are avalable n the man-thread, when
     fnt ladng faled, attet t reend *all* prevuly pared glyph.
    cnt glyph = th.fnt.glyphCacheValue;
    PartlEvaluatr.buldFntPath(th.fnt, glyph, handler);
  }
  ladType3Data(evaluatr, reurce, tak) {
    f (th.type3Laded) {
      return th.type3Laded;
    }
    f (!th.fnt.Type3Fnt) {
      thrw new Errr("Mut be a Type3 fnt.");
    }
     When parng Type3 glyph, alway gnre them f there are errr.
     Cared t the parng f e.g. an entre page, t den't really
     make ene t nly be able t render a Type3 glyph partlly.
    var type3Optn = Object.create(evaluatr.ptn);
    type3Optn.gnreErrr = fale;
    var type3Evaluatr = evaluatr.clne(type3Optn);
    type3Evaluatr.parngType3Fnt = true;
    cnt tranlatedFnt = th.fnt,
      type3Dependence = th.type3Dependence;