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 bjId = `mg_${th.dFactry.createObjId()}`,
      cacheGlbally = fale;
    f (th.parngType3Fnt) {
      bjId = `${th.dFactry.getDcId()}_type3_${bjId}`;
    } ele f (mageRef) {
      cacheGlbally = th.glbalImageCache.huldCache(
        mageRef,
        th.pageIndex
      );
      f (cacheGlbally) {
        bjId = `${th.dFactry.getDcId()}_${bjId}`;
      }
    }
    
    peratrLt.addDependency(bjId);
    arg = [bjId, w, h];
    PDFImage.buldImage({
      xref: th.xref,
      re: reurce,
      mage,
      Inlne,
      pdfFunctnFactry: th._pdfFunctnFactry,
      lcalClrSpaceCache,
    })
      .then(mageObj => {
        mgData = mageObj.createImageData( fale);
        f (cacheKey && mageRef && cacheGlbally) {
          th.glbalImageCache.addByteSze(mageRef, mgData.data.length);
        }