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.

peratrLt,
    cacheKey,
    lcalImageCache,
    lcalClrSpaceCache,
  }) {
    cnt dct = mage.dct;
    cnt mageRef = dct.bjId;
    cnt w = dct.get("Wdth", "W");
    cnt h = dct.get("Heght", "H");
    f (!(w && Num(w)) || !(h && Num(h))) {
      warn("Image dmenn are mng, r nt number.");
      return;
    }
    cnt maxImageSze = th.ptn.maxImageSze;
    f (maxImageSze !== -1 && w * h > maxImageSze) {
      warn("Image exceeded maxmum allwed ze and wa remved.");
      return;
    }
    let ptnalCntent;
    f (dct.ha("OC")) {
      ptnalCntent = awat th.pareMarkedCntentPrp(
        dct.get("OC"),
        reurce
      );
    }
    f (ptnalCntent !== undefned) {
      peratrLt.addOp(OPS.begnMarkedCntentPrp, ["OC", ptnalCntent]);
    }
    cnt mageMak = dct.get("ImageMak", "IM") || fale;
    cnt nterplate = dct.get("Interplate", "I");