View and edit PDF document properties online for free with our PDF Metadata Editor. Modify document Title, Author, Subject, and Keywords, or sanitize sensitive tracking tags inside client browser RAM.
Load your PDF file to inspect embedded document property fields.
Update document title, author, subject, keywords, creation date, and producer metadata.
Click Save Metadata to encode updated info dictionary tags and download your PDF.
Reads existing /Info catalog dictionary tags upon file selection, populating inputs automatically.
Wipe author names, software creation stamps, and editing software metadata before publishing files.
All property reads and object stream writes execute inside client browser memory. Zero files leave your device.
PDF document metadata resides in the trailer dictionary referenced by the /Info key. Standard metadata properties include Title (/Title), Author (/Author), Subject (/Subject), Keywords (/Keywords), Creator (/Creator), and Producer (/Producer).
When reading files, pdf-lib parses trailer dictionary streams and extracts text strings. Modifying metadata updates dictionary entries and recalculates document modification timestamps (/ModDate).
Sanitizing PDF metadata removes personal author tags and software creation traces, generating clean binary blobs directly in browser RAM with zero server communication.