What metadata does a PDF contain?
Metadata is the information a PDF stores about itself, separate from the pages you read. The title is what many browsers show on the tab and what some readers show in the window bar. The author tells people who wrote or issued the file. The subject summarizes what it covers, and the keywords help desktop search and document libraries find it.
Most people never look at these fields until something seems off. A report exported from a spreadsheet may be titled “Sheet1”. A scanned contract may list the scanner software as its author. A proposal built from an old template may still carry the previous client’s name in the subject. Fixing these small details makes a document look finished, and it stops a stray name from travelling with the file.
How do I change the author or title of a PDF?
Add your PDF and the tool reads the stored properties into a form, pre-filled with the current values. Type over the title, author, subject or keywords you want to change, leave the rest as they are, and click Save PDF. The new values are written into a fresh copy, which you download. You don’t need Acrobat or any desktop software for this.
Everyday reasons are easy to find. You might be sending a CV and want the title to read “CV Jane Doe” rather than “Untitled”. A team may want every report to show the same author name. A student may add keywords so a thesis turns up in a folder search. Or you may want to replace your personal name with a company name before the file goes to a client.
Tip: Fill the title with something readable, such as the document name and the year. The title is what appears in browser tabs and in many search results, so it matters more than the other three fields.
Is it safe to edit PDF metadata online?
It is here, because the page only looks like an online service. The editing itself happens in your browser: the file is opened, the four fields are rewritten and the copy is saved, all on your device. Nothing is uploaded, so invoices, contracts and HR papers never sit on someone else’s server. There is nothing to install, so it works the same on a phone, a tablet or a laptop.
The pages are not re-drawn or converted along the way. Text, fonts and images stay exactly as they were, no watermark is added, and your original file remains on your device unchanged.
Edit metadata or remove it before sharing?
Editing replaces values with better ones. Sometimes you would rather have nothing there at all. If you want to strip a PDF of hidden details in a wider sense, including XMP data, attachments and embedded scripts, the tool for removing hidden data goes further than these four fields. A few habits help either way:
- Use a title people will recognize. Skip names like “scan_0042” or “final_v3” and write what the document is.
- Keep the author consistent. If several people share a team, use one name format on every file so they sort and search well.
- Separate keywords with commas. A short list of relevant words works better than a long sentence.
- Check before you send. Open the fields once more to be sure no private name or internal project code is left behind.
- Keep the original. The tool saves a new copy, so your first version stays available if you want to compare.