Word, Pages and most export tools write the account name of the computer into the PDF’s author field, and the software name into the producer field. Neither appears on the page, both travel with the file, and clearing them takes one pass.
1Look at the fields firstEdit PDF Metadata shows what the file actually holds — usually more than people expect, including paths and timestamps.
2Clear themRemove PDF Metadata empties both the document fields and the XMP packet in one pass, leaving the pages untouched.
3Or set them deliberatelyFor archives and court bundles, an accurate title and organization name are useful. Type them rather than leaving whatever the software wrote.
4Check images if the PDF came from a phonePhotographs keep their own EXIF, including GPS. Stripping PDF fields does not touch it — extract the pictures and check them separately.
Why does this happen?
The author field comes from your user account. Office applications fill it from the operating system’s account name — often a full name set up when the laptop was first switched on.
The producer field names the software. It records what wrote the file: a Word version, a print driver, a scanner’s firmware, a library. It also dates the file by association.
XMP keeps a second copy. Design software writes an XMP block that repeats the author and can carry document IDs linking revisions of the same file.
A template carried it. Documents built from a colleague’s template inherit their name in the fields, which is how a submission ends up authored by someone who never saw it.
Questions
Does removing metadata change the document?
No. The pages are identical; only the fields around them are cleared.
Will the recipient know I cleared it?
They will see empty fields, which is unremarkable — plenty of tools produce files with no author at all.
Does this remove tracked changes or comments?
No. Comments are annotations on the page. Flatten the file to make them permanent, or remove them before exporting.