How-to guide
Remove PDF Metadata Without Adobe Acrobat
You don't need Adobe Acrobat (or its subscription) to remove metadata from a PDF. Acrobat Pro can do it via Preflight or "Sanitize Document," but it's paid desktop software. A faster, free option is MetaDocu: open your PDF in the browser and it strips the author, title, subject, keywords, creation/modification dates, the Info dictionary and the XMP metadata stream — all locally, with no upload and no account. The cleaned file downloads back to you with a verification report. Below is exactly how to do it without Acrobat, why the XMP stream matters (clearing only the visible properties can leave a second copy behind), and how to confirm the PDF is actually clean afterward.
Remove PDF metadata without Acrobat
Audit Local Metadata Risks
Drag files below to generate an offline privacy audit report.
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Remove PDF metadata without Adobe Acrobat
Four steps, free, entirely in your browser.
- 1
Open your PDF in MetaDocu
Drop the PDF into the tool above. It's read into your browser's memory — no file is uploaded to any server.
- 2
Scan the hidden fields
MetaDocu lists what the PDF exposes: author, title, subject, keywords, producer/creator software, timestamps and the XMP stream.
- 3
Clear and rebuild
Remove the fields in one click. MetaDocu wipes both the Info dictionary and the XMP packet so no duplicate metadata survives.
- 4
Download and verify
Download the clean PDF and check Document Properties in any viewer — the fields should be empty. A report confirms what was removed.
Why clearing only the visible properties isn't enough
Many PDFs carry metadata twice: once in the Info dictionary (the fields most viewers show) and again in an embedded XMP stream. Editing the visible properties — or even Acrobat's basic property dialog — can leave the XMP copy intact, so author and tool data resurface. MetaDocu removes both, which is why a 'cleaned' file from a quick edit can still leak data that MetaDocu catches.
What a PDF can leak — and how it's removed
The hidden fields MetaDocu finds and clears in a PDF, locally.
| Hidden field | What it exposes | Risk | How MetaDocu removes it |
|---|---|---|---|
Author / Creator dc:creator · PDF /Author | The real name (or Office sign-in name) of whoever first created the file — often your full legal name. | High | Cleared from the OOXML core properties / PDF Info dictionary in browser memory; the field is emptied, not just hidden. |
Application & version Application/AppVersion · PDF /Producer · /Creator | The exact software and version used — a fingerprint for targeting known vulnerabilities or deanonymizing authors. | Low | Normalized/removed from app properties and the PDF Producer/Creator fields. |
Created / Modified dates dcterms:created/modified · PDF /CreationDate /ModDate | Precise creation and last-edit timestamps — builds a timeline of your activity. | Medium | Removed or reset so no editing timeline leaks. |
Title / Subject / Keywords dc:title, dc:subject, cp:keywords · PDF /Title /Subject /Keywords | Internal codenames, client names, or tags left in the properties even when not shown in the document text. | Medium | Cleared from both OOXML properties and the PDF Info dictionary. |
XMP metadata stream /Metadata XMP packet (xmpMM:DocumentID, InstanceID, History) | A second copy of author/tool data plus document/instance IDs that survive even when the Info dictionary is cleared. | High | The XMP packet is removed alongside the Info dictionary so no duplicate metadata remains. |
Frequently asked questions
How do I remove metadata from a PDF without Adobe Acrobat?
Use MetaDocu in your browser: open the PDF, scan it, clear the fields, and download — no Acrobat, no upload, no account. It strips the author, title, subject, keywords, producer/creator, creation and modification dates from the Info dictionary, and also removes the XMP metadata stream so no duplicate copy remains. Everything runs locally with WebAssembly, and a verification report confirms the fields are gone. Open the downloaded file's Document Properties in any viewer to double-check they're empty.
Is removing PDF metadata online safe without Acrobat?
It depends on the tool. Many free online PDF tools upload your file to a server to process it, which is the opposite of private for a sensitive PDF. MetaDocu is safe because it never uploads: the PDF is processed entirely in your browser's sandbox and never transmitted. There's no server copy to be cached, logged, retained or breached. After the page loads you could even go offline and still clean the file. For confidential documents, a no-upload, in-browser tool is the safe choice.
Does Acrobat's 'Sanitize Document' do the same thing?
Acrobat Pro's Sanitize and Preflight can remove metadata and other hidden data, and they're capable tools — but they require a paid Acrobat Pro subscription and a desktop install. MetaDocu covers the core metadata-removal need (Info dictionary plus the XMP stream) for free, in the browser, with no upload. If you already own Acrobat Pro and need its broader redaction and pre-press features, use it; if you just need to strip metadata before sharing, MetaDocu does that specific job without the cost.
Clean your PDF — no Acrobat needed
Remove and verify hidden metadata 100% in your browser, free.