Replace this: What happened? What were you trying to achieve?

Environment

Which environment were you using when you encountered the problem?

$ python -m platform
# Windows-10-10.0.22000-SP0

$ python -c "import pypdf;print(pypdf._debug_versions)"
# pypdf==3.17.1, crypt_provider=('cryptography', '41.0.3'), PIL=none

Code + PDF

I get this error from:

for pdf in list:
    print(' Adding: {}'.format(pdf))
    merger.append(pdf)

It comes from:
Illegal character in Name Object (b'/DocuSign\xae')
and not UTF-8 related.

See:
https://stackoverflow.com/questions/76328047/how-can-i-remove-the-character-from-multiple-multi-page-pdfs-using-pymupdf-for

Related to #369