Skip to content
KitWren

PDF · Blog

What PDF Metadata Reveals About You (and How to Edit It)

Updated 27 September 2026 · 5 min read

Open almost any PDF’s Properties window and you’ll find information that isn’t on the page: who wrote it, what it was called when it was saved, which program made it, and when. Usually that’s harmless. Sometimes it isn’t — a CV whose author field is a previous employer’s laptop name, a proposal titled “Acme pricing – DO NOT SEND”, or a client document still carrying another client’s name. Checking takes seconds.

Open the free PDF Metadata Viewer & Editor

What’s stored

FieldUsually containsWhat it can give away
TitleThe document title — or an old file nameDraft labels, internal project names, another client’s name
AuthorThe name set in the software, or the computer’s user accountYour full name, a nickname, an employer’s account name
Subject and KeywordsOften blank; sometimes tags from a templateInternal classifications, old template text
CreatorThe program the document was written inThat a CV came from a template, or an old software version
ProducerThe program that made the PDFScanner models, PDF software
Created / Modified datesWhen the file was made and last savedThat a document is years old, or was just changed

Anyone who opens the file can see these fields — in Adobe Acrobat under File → Properties, in Preview on a Mac under Tools → Show Inspector, and in most browsers’ PDF viewers under “Document properties”.

Check and edit it in seconds

  1. Open the PDF metadata editor and choose your file.
  2. Review the summary: page count, PDF version, file size, page size, and the created and modified dates.
  3. Edit or clear the Title, Author, Subject, Keywords, Creator and Producer fields.
  4. Save and download the updated PDF.

The dates are shown so you can review them but aren’t editable, and saving updates the modified date to now. Editing metadata never changes what’s printed on the pages.

Fix it at the source

Metadata usually comes from the program that created the document, so the best long-term fix is there:

  • Microsoft Word: File → Info shows Author and Title under Properties; edit them before exporting. File → Info → Check for Issues → Inspect Document can remove personal information, comments and hidden text in one go.
  • Google Docs: the PDF title comes from the document name — rename the document before downloading.
  • Your computer’s user name often becomes the Author. If it’s something like “Admin” or an old employer’s name, change the name in your Office account or software settings.

Metadata isn’t the only hidden content

  • Text under black boxes. Covering text with a shape doesn’t remove it — use Redact PDF.
  • Cropped-away areas are hidden, not deleted.
  • Comments and annotations from review rounds may still be attached.
  • Form fields can hold values that aren’t visible on every page.
  • Photos inside documents can carry their own location data — strip it from images before inserting them, with the EXIF Remover.
  • A second copy of the metadata. Many programs also store these details in a separate XMP block that simple editors don’t touch. For highly sensitive documents, cleaning the source file (with Word’s Inspect Document, for example) and exporting a fresh PDF is the most thorough approach.

A note on honesty

Tidying the metadata of your own documents — a CV, a proposal, a report — is good practice. Changing details on documents issued by someone else, such as bank statements, payslips or certificates, is different: those should be sent exactly as you received them. Altering official documents can breach an application’s rules and, in some cases, the law.

Worked example: a CV that said too much

Daniel built his CV from a template on a work laptop years ago and has updated it ever since. Before applying for a new role, he checks the PDF’s metadata:

FieldBeforeAfter
TitleCV_draft_v7_FINAL2Daniel Okafor – CV
Authorjsmith (the laptop’s previous owner)Daniel Okafor
SubjectResume template – Marketing(cleared)
Keywordstemplate, sample(cleared)

He also fixes the Author name in Word so future exports are right, and names the file “Daniel-Okafor-CV.pdf”. Now the recruiter’s PDF viewer shows his name in the title bar, not “CV_draft_v7_FINAL2”.

Using metadata to your advantage

Metadata isn’t only a privacy risk — set deliberately, it helps. A clear Title makes a PDF easier to identify in email previews, browser tabs and document libraries. It also helps accessibility: screen readers and assistive software announce the document title, which is far more useful than a file name like “scan0042”. And when you publish PDFs on a website, search engines may use the Title in results, so a descriptive title such as “Club Membership Form 2026” can bring the right visitors.

  • Title: what the document is, in plain words.
  • Author: you or your organisation’s name.
  • Subject: a one-line summary, if useful.
  • Keywords: a few search terms for documents you publish online; leave blank otherwise.

Remember that the recipient sees your metadata only if they look — but recruiters, lawyers and journalists often do.

Organisations and templates

Templates are the most common source of embarrassing metadata. A proposal template made for one client, copied for the next, keeps the first client’s name in its Title and Subject until someone changes them. If your organisation uses templates, clear these fields in the template itself once, and every document made from it starts clean. It’s a five-minute fix that prevents a surprisingly common mistake.

Other files carry metadata too

  • Word and Excel files store author names, the last person who saved them, total editing time, and sometimes tracked changes and comments. Word’s Inspect Document removes most of it.
  • Photos carry EXIF data: camera model, date and time, and often GPS coordinates. Remove it with the EXIF Remover before posting; see what a photo holds with the Image Metadata Viewer.
  • Scanned PDFs often name the scanner model in the Producer field — harmless, but worth knowing.

A quick pre-send routine

  1. Open the PDF in the metadata editor.
  2. Set a proper Title and your own name as Author.
  3. Clear leftover Subject and Keywords.
  4. If the content itself contains details the recipient shouldn’t see, redact them.
  5. If it’s sensitive, add a password with Protect PDF and send the password separately.

When to check metadata

  • Before sending a CV or cover letter.
  • Before sending a proposal, quote or report built from a previous client’s version.
  • Before publishing a PDF on a website, where search engines may show the Title field in results.
  • Before sharing documents outside your organisation.

Privacy

The metadata editor runs in your browser, so the document isn’t uploaded to read or change its properties.

Frequently asked questions

Can people see who created my PDF?

Often, yes. The Author field commonly holds your name or computer user name, and anyone can view it in the document’s properties.

Does editing metadata change the document’s content?

No. Metadata is stored separately from the pages; nothing visible changes.

Can I change a PDF’s creation date?

The metadata editor shows the created and modified dates but doesn’t edit them. Saving sets the modified date to the current time.

Why does my PDF show a strange title in the viewer?

Many viewers display the Title field rather than the file name. Set a proper title in the metadata editor or in the source document before exporting.

Tools in this article