| Info dictionary | Title, Author, Subject, Keywords, Creator, Producer, CreationDate, ModDate | Yes, every key and the object itself |
| XMP stream on the catalog | The same fields in XML plus xmp:CreatorTool, edit history, DocumentID and InstanceID | Yes |
| XMP streams on pages | Per-page metadata some exporters attach | Yes |
| Orphaned /Type /Metadata streams | Left behind by earlier tools that unlinked but did not delete | Yes |
| Trailer /ID pair | Two hashes that tie every saved version of a file together | Replaced with fresh random values |
| Annotations (/Annots) | Comments and highlights, each with an author name | Reported, kept |
| Form fields (/AcroForm) | Fillable fields and their values | Reported, kept |
| Content streams, fonts, images | The pages themselves | Kept byte for byte |