Producer showing numbers - embedded or annotation?

[kelly_7090]

/Creator (Canon iR-ADV 6555 PDF)
/CreationDate (D:20220314182926-05'00')
/Producer<FEFF00410064006F00620065002000500053004C00200031002E0033006500200066006F0072002000430061006E006F006E0000>

This came up in one of my documents. Is that something that is embeded in the document or an annotation?

Appreciate the help!

[MikelKlink]

The value of Producer is a string just like the value of Creator. It merely is not written verbatim but instead hex-encoded. Furthermore, the leading FEFF indicates that this string is UTF-16 encoded. Decoding it results in "Adobe PSL 1.3e for Canon".

[kelly_7090]

Very grateful. Thank you so much!