After -all= PDF XMP still exsist

[lipa]

Hi everyone!

I've a PDF. I'd like to anonymized.
I tried this command: exiftool -scanForXMP -all= 1.pdf -o 2.pdf, but with "strings 2.pdf" still exsist.

How can i delete XMP tags?

Thank you!

[Phil Harvey]

ExifTool can not be used to permanently remove metadata from a PDF file.  See the PDF Tags documentation for details, and this thread for a discussion of this.

- Phil