View and change the PDF's title, author and other properties — including XMP metadata, custom properties and a full document diagnosis.
This tool changes the PDF's info dictionary and, optionally, its XMP — no server required, everything happens in your browser. Editing the metadata of a digitally signed PDF invalidates that signature (the tool warns you when it detects one). Password-protected files must first be unlocked with "Remove password".
Choose the document whose properties (metadata) you want to view or change.
View and change the title, author, subject, keywords and other properties, including the creation and modification dates.
The resulting PDF has the updated metadata, with all the rest of its content unchanged.
No — metadata is information about the file (title, author, keywords), not the content of the pages; the document keeps the same text and images, only the descriptive information changes.
It helps you organize and find documents (for example, the title appears in the browser tab and in internal search engines), and it's useful for identifying a file's author and purpose without having to open it.
Yes, you can usually clear the fields so they're empty, if you'd rather the PDF didn't expose any author, title or other properties.
No. All processing happens inside your own browser — the file never leaves your computer or passes through any external server. You can confirm this by disconnecting from the internet once the page has loaded: the tool keeps working normally.
No. PDFsy doesn't ask for sign-up, an account or payment — just open the page and use the tool.
Yes. PDFsy offers PDF tools equivalent to iLovePDF's — merge, convert, compress, protect and much more — available in 25 languages, with no usage limits, no need to create an account, and 100% local processing in your browser, without uploading any file to any server.