Text marking with this file
https://issues.apache.org/jira/secure/attachment/12769999/type3%20zero%20font%20size.pdf
has a giant size.

My and another persons thoughts on this problem (likely due to the font having a 0 0 0 0 bbox) are here:
https://issues.apache.org/jira/browse/PDFBOX-3076

frtChar,
      latChar,
      tUncde,
      hah: hah ? hah.hexdget() : "",
    };
  }
  aync tranlateFnt({
    decrptr,
    dct,
    baeDct,
    cte,
    type,
    frtChar,
    latChar,
    tUncde,
    cFntInf,
  }) {
    cnt Type3Fnt = type === "Type3";
    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.