How to Check PDF Metadata Before You Share a File
To check a PDF's metadata, drop the file into a browser tool like ByteTools PDF Metadata Viewer and read the property table it displays — title, author, subject, keywords, the creating application, the producer library, and the creation and modification dates. The file is inspected locally, so nothing is uploaded.
Every PDF carries a layer of hidden information most people never look at. That data can be useful for verifying a document — or embarrassing when it leaks a real name or the internal software your company uses. Knowing how to read it puts you in control.
What is PDF metadata and who needs it?
PDF metadata is a set of descriptive fields stored inside the file itself, separate from the visible page content. It records who and what made the document, when, and with which tools. Acrobat surfaces some of it under File → Properties, but a dedicated viewer lays out everything at once.
Three groups care about it most: privacy-conscious professionals auditing outgoing attachments before they send a résumé or legal filing; researchers and journalists verifying where a document really came from; and editors confirming when a file was genuinely last modified rather than trusting a filename.
How to view PDF metadata in your browser
- Drop a PDF onto the upload area.
- Read the full metadata table — title, author, subject, keywords, creator, producer and dates all appear at once.
- Scan the page count, first-page dimensions and PDF specification version to understand the file at a glance.
- Load another PDF whenever you want to compare two documents side by side.
What each metadata field actually tells you
The fields are easy to misread. This table explains what each one really means and why it might matter.
| Field | What it means | Why it matters |
|---|---|---|
| Author | Name or username stored by the editor | Often a real person or corporate login — a privacy risk |
| Creator | The app the document was authored in | Reveals your workflow (Word, InDesign, etc.) |
| Producer | The library that wrote the PDF | Shows the export or print pipeline used |
| Creation / Modified date | When the file was made and last changed | Verifies provenance and real edit history |
| PDF version | The specification the file conforms to | Signals feature support and generator age |
The gap between creator and producer is especially telling: a document authored in Word but produced by a print driver reveals exactly how it was made.
Key features and benefits
- Shows every standard document-info field in one table.
- Creation and modification dates converted to your local time.
- Page count plus page size in both points and millimetres.
- Detects the PDF specification version automatically.
- 100% private — the file never leaves your device.
- Free, instant, and no sign-up.
Try the PDF Metadata Viewer now — it's free and runs entirely in your browser.
Frequently asked questions
How do I see the properties of a PDF?
Drop the PDF into the viewer and the full property table appears instantly, showing the same fields Acrobat lists under File → Properties, plus page count, page size and PDF version.
What is the difference between creator and producer?
The creator is the application the document was originally authored in, such as Word or InDesign. The producer is the software library that actually wrote the PDF, like Acrobat Distiller or a print driver. They often differ, which itself reveals the document's history.
Can PDF metadata expose personal information?
Yes. The author field frequently holds a real name or corporate username, and the creator and producer fields expose the software used. Checking metadata before sharing is a smart habit, especially for résumés, bids and legal documents.
What do the page dimensions in points mean?
PDF sizes are measured in points, where 72 points equal one inch. A4 is 595 × 842 points and US Letter is 612 × 792 points. The tool shows both points and millimetres so the paper size is easy to recognise.
Why are some fields blank?
Metadata fields are optional in the PDF standard, so many generators leave them empty or the author deliberately strips them. A blank field simply means no value was stored — it is not an error.
Related free tools
- Image Metadata Viewer — inspect EXIF data hidden inside photos.
- Merge PDF — combine multiple PDFs into one file.
- Add Page Numbers to PDF — number the pages of a document.
- PDF to Images — render PDF pages as PNG or JPG.
Built by ByteVancer
ByteTools is a free product of ByteVancer, a software and web development studio that builds web apps, SaaS platforms and custom software for businesses. If you need privacy-minded software built the right way, explore ByteVancer's services and reach out about your next project.
Recommended reading
PDF Metadata Viewer: Real Use Cases and Examples
See who inspects PDF metadata and why: journalists verifying files, editors checking edit dates, job seekers auditing resumes, and legal teams on provenance.
PDF Metadata: Pro Tips and Common Mistakes
Expert tips for reading PDF metadata: spot privacy leaks, interpret creator vs producer, decode dates and page sizes, and avoid mistakes that expose your data.
XOR Cipher Use Cases: CTFs, Learning, and Puzzles
Real use cases for the XOR cipher, from CTF challenges and teaching bitwise logic to lightweight obfuscation, with concrete worked examples.
XOR Cipher Tips: Keys, Security, and Common Mistakes
Pro tips and common mistakes for the repeating-key XOR cipher: key length, reuse pitfalls, format choices, and when to switch to real encryption.