PDF 2.0 Error

[Booze-Operator]

pdfsizeopt.main.PdfTokenParseError: unrecognized PDF signature '%PDF-2.0\n%\x80\x81\x82\x83\n1'

Creator: Vim 9.1, Docutils 0.22.4
Producer: FOP 2.11, Ghostscript 10.07.0, cpdf 2.8.1
CreationDate: Thu Jan 22 19:37:55 2026 CET
ModDate: Thu Jan 22 19:37:55 2026 CET
Custom Metadata: no
Metadata Stream: yes
Tagged: no
UserProperties: no
Suspects: no
Form: none
JavaScript: no
Pages: 11
Encrypted: no
Page size: 595.275 x 841.889 pts (A4)
Page rot: 0
File size: 110731 bytes
Optimized: no
PDF version: 2.0