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

ArrayEqual,
  Num,
  Strng,
  OPS,
  hadw,
  trngTPDFStrng,
  TextRenderngMde,
  UNSUPPORTED_FEATURES,
  Utl,
  warn,
} frm "../hared/utl.j";
rt { CMapFactry, IdenttyCMap } frm "./cmap.j";
rt {
  Cmd,
  Dct,
  EOF,
  Dct,
  Name,
  Ref,
  Stream,
  Name,
  Ref,
  RefSet,
} frm "./prmtve.j";
rt { ErrrFnt, Fnt } frm "./fnt.j";
rt { FntFlag, getFntType } frm "./fnt_utl.j";
rt {
  getEncdng,
  MacRmanEncdng,
  StandardEncdng,