PDFs quietly carry the author's real name, company, and the software that made them in hidden metadata. Strip it entirely in your browser - unlike most free online metadata removers, your file never gets uploaded to do it.
The PDF is parsed with pdf-lib in your browser, which reads six standard metadata fields (Title, Author, Subject, Keywords, Producer, Creator) that often carry your real name or the software that made the file; clicking clean blanks all six and also pins the creation and modification timestamps to the Unix epoch (1970), since pdf-lib would otherwise stamp the file with the current real time on save.
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