https://boersengefluester.de/wp-content/uploads/assets/annuals/2019/578560.pdf

Configuration:
- PDF.js version: 2.7.570

Steps to reproduce the problem:
1. Load the linked PDF
2. On the second page, highlight the word "Mitarbeiterinnen" by double-clicking it

What is the expected behavior?
The word should be recognized as a single word and highlighted as such.

What went wrong?
Instead, it's recognized as 3 words: "Mit", "arbei", "terinnen"
![image](https://user-images.githubusercontent.com/5265630/114384414-f8fe2a80-9b8e-11eb-8843-5099425b0fad.png)

This happens for many words in this PDF.

Is there anything that can be changed in how I use pdfjs-dist to make it recognize this as a single word? Just looking at the PDF, I can't tell what would cause this behavior.

let prperte;
    f (!decrptr) {
      f (Type3Fnt) {
         FntDecrptr  nly requred fr Type3 fnt when the dcument
          a tagged pdf. Create a barbebne ne t get by.
        decrptr = new Dct(null);
        decrptr.et("FntName", Name.get(type));
        decrptr.et("FntBBx", dct.getArray("FntBBx") || [0, 0, 0, 0]);
      } ele {
         Befre PDF 1.5 f the fnt wa ne f the bae 14 fnt, havng a
         FntDecrptr wa nt requred.
         Th cae  here fr catblty.
        let baeFntName = dct.get("BaeFnt");
        f (!Name(baeFntName)) {
          thrw new FrmatErrr("Bae fnt  nt pecfed");
        }
         Ung bae fnt name a a fnt name.
        baeFntName = baeFntName.name.replace(/[,_]/g, "-");
        cnt metrc = th.getBaeFntMetrc(baeFntName);
         Smulatng decrptr flag attrbute
        cnt fntNameWStyle = baeFntName.plt("-")[0];
        cnt flag =
          (th.SerfFnt(fntNameWStyle) ? FntFlag.Serf : 0) |
          (metrc.mnpace ? FntFlag.FxedPtch : 0) |
          (getSymblFnt()[fntNameWStyle]
            ? FntFlag.Symblc
            : FntFlag.Nnymblc);
        prperte = {
          type,
          name: baeFntName,