Edit document properties including Title, Author, Subject, and Keywords.
PDF metadata is the hidden information embedded in every PDF file — the document title, author name, creation date, modification date, keywords, subject, and custom properties. This metadata helps organize, search, and identify documents, and it's often visible in file properties dialogs across operating systems. Editing metadata lets you correct outdated information, add missing details, or customize properties for organizational purposes. PDFly's metadata editor runs entirely in your browser.
Upload your PDF and the tool displays all editable metadata fields. You can modify the title, author, subject, keywords, creation date, and modification date. Changes are applied directly to the PDF's internal metadata structure and saved when you download the modified file. The visual content of the document remains completely unchanged — only the invisible metadata properties are modified.
Editing metadata is useful for cleaning up documents before archival (correcting dates and author information), adding searchable keywords to improve document findability, updating the author field when reusing templates from other sources, and standardizing metadata across a document collection. Be aware that some metadata fields may be overwritten by PDF readers when the file is opened and saved again. Also, the modification date will update when you save changes, which is expected behavior. For documents with existing metadata from a known source, the original values are preserved unless you explicitly change them.
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