PDF metadata - how to delete tags?

[Juggernaut]

Hello everyone. 

Is there any way how user can delete (complete remove) the tags from PDF file?

Because -all= command does not delete, but hides them.

PS: if ExifTool cannot remove/delete tags, maybe someone knows good software, that can do these anonymizing things?

Thanks!

[StarGeek]

I believe if you linearize the pdf with qpdf (run qpdf --linearize) after you run exiftool -all= that will remove the hidden metadata.

For some reason I can't find the link to the post describing the procedure atm.

[Phil Harvey]

This is mentioned in note number 2 in the PDF Tag Name documentation

- Phil