Open a PDF's properties in any viewer and you'll find fields most people never look at: Title, Author, Subject, Keywords, Creator, Producer, creation and modification dates. They're filled in automatically from your account name and the software you used.
Why it matters
Usually it's harmless. Occasionally it's embarrassing or worse:
- A title left over from an old template: "Offer letter – Candidate B".
- The author field showing a colleague's name, or your personal account name on a company document.
- A creation date at 2 a.m. the night before a deadline that was supposed to have been met weeks earlier.
- Keywords from an internal draft that were never meant to leave the building.
Journalists and lawyers check these fields routinely. It's one of the first things anyone looks at when a document's origin is in question.
See what's in your file
Open Edit metadata and add the PDF. The current values are shown in the form, so you can read them before deciding anything. If you only want to fix one field, say a wrong title, change it there and save.
Remove it all
Remove metadata clears the title, author, subject, keywords, creator, producer and dates in one go. The pages themselves aren't touched.
What metadata removal doesn't do
- It doesn't remove text on the pages. Names in a footer, tracked changes that were printed into the PDF, or comments that were flattened stay visible.
- It doesn't remove hidden text under a black box. A black rectangle drawn over a name in Word is often just a rectangle on top; the name is still there underneath and can be copied. Real redaction removes the text itself.
- Annotations and form fields are separate from metadata. Flatten the PDF if you want form answers to become part of the page.
For a quick share, removing metadata is good hygiene. For anything sensitive, check the pages too.