Reads and rewrites PDF metadata with the in-house PDF engine — no upload: the Info dictionary (title, author, subject, keywords, creator, producer, dates, custom keys), the XMP packet and the document IDs are shown; Edit rewrites the file with your values (optionally regenerating XMP from them and keeping or resetting dates and IDs); Remove strips every metadata field, the XMP packet and the IDs before you share a document. Pages, bookmarks, forms and annotations are carried over unchanged. Broken cross-reference tables are rebuilt automatically; encrypted files are reported and left untouched.