How to Remove PDF Metadata: Complete Privacy Guide

Every PDF file carries hidden information you probably don't know about. Your name, the computer you used to create it, when you last edited it, the software you used — it's all embedded in the file. Most people never think about this. But when you share a PDF, all that metadata goes with it.

In most cases it doesn't matter. But if you're submitting a resume, sending a legal document, sharing a report anonymously, or distributing something publicly, metadata can reveal more than you intended. Here's how to find and remove it.

What Metadata Does a PDF Contain?

PDF metadata falls into several categories:

Document properties: Title, author, subject, keywords — often auto-filled from your operating system or software.
File history: Creation date, last modified date, PDF producer application, PDF version.
Author information: Your real name (pulled from your OS user account), your computer's name, and sometimes your username.
Edit history: What software was used, how many revisions, and sometimes comments or annotations that were "deleted" but not actually removed.
Custom metadata: GPS coordinates (from some mobile PDF creators), organization names, and other application-specific data.

To see what's in your PDF right now, open it in Adobe Acrobat Reader and go to File > Properties. Or on a Mac, open it in Preview and press Cmd + I. You might be surprised by what you find.

Method 1: Remove Metadata in Adobe Acrobat

If you have Adobe Acrobat Pro, the built-in metadata removal tool is thorough and reliable.

Open your PDF in Adobe Acrobat Pro.
Go to Tools > Redact.
In the Redact toolbar, click Remove Hidden Information.
Acrobat will scan the document and show you everything it found — metadata, comments, hidden layers, embedded data, and more.
Check the items you want to remove (or select all).
Click Remove.
Save the file with a new name.

This is the most comprehensive method. It doesn't just clear the basic metadata fields — it also strips hidden layers, deleted content, form data, bookmarks metadata, and embedded search indices.

Method 2: Remove Metadata on Mac (Free)

Mac users can strip basic metadata using the built-in Preview app.

Open the PDF in Preview.
Press Cmd + I to open the Inspector.
Click the info tab (the "i" icon).
Delete any information in the Title, Author, Subject, and Keywords fields.
Close the Inspector and save the file.

This removes the visible metadata fields but won't catch everything. Hidden data, edit history, and embedded information may persist. For sensitive documents, combine this with one of the other methods below.

Method 3: Use an Online Metadata Remover

Several free online tools specialize in stripping PDF metadata. These are convenient when you don't have access to Adobe Acrobat.

The general process is: upload your PDF, the tool removes metadata, download the clean file. Some tools let you preview what was removed before downloading.

Privacy consideration: You're uploading your document to a third-party service. For non-sensitive files this is fine. For confidential documents — legal contracts, financial records, medical documents — use a tool that processes files in your browser instead of uploading to a server.

Method 4: Use ExifTool (Command Line, Free)

ExifTool is a powerful, free command-line utility that strips metadata from virtually any file type, including PDFs. It runs on Windows, Mac, and Linux.

After installing ExifTool, open your terminal and run:

exiftool -all= yourfile.pdf

This wipes all metadata fields in the PDF. The original file is automatically backed up (with a "_original" suffix), so you can always go back if something goes wrong.

For more granular control, you can remove specific fields:

exiftool -Author= yourfile.pdf — removes only the author field
exiftool -Creator= -Producer= yourfile.pdf — removes software info

Method 5: Print to PDF (Quick and Dirty)

The simplest method that works on any operating system: open the PDF and print it to a new PDF file. This creates a fresh document with minimal metadata.

Open your PDF in any viewer.
Press Ctrl + P (or Cmd + P on Mac).
Select Print to PDF or Save as PDF as the printer.
Save the new file.

The new PDF will contain only the visual content. Most metadata gets stripped in the process because the print-to-PDF engine creates a fresh file from scratch. It won't remove everything — the creation date and PDF producer will still show — but it gets rid of author names, edit history, and comments.

When You Should Definitely Remove Metadata

Some situations make metadata removal especially important:

Job applications: Your resume PDF might contain your computer's name, your full name in the author field (even if you intended to be anonymous), and revision timestamps that reveal you've been editing it for months.
Legal documents: opposing counsel can see when a document was created, what software was used, and whether it's been modified since a particular date.
Whistleblowing or anonymous submissions: Metadata is the easiest way to deanonymize a document.
Public distribution: Anything you publish online should be metadata-clean before it leaves your hands.

The Bottom Line

PDF metadata is invisible but persistent. It travels with every copy of your file and can reveal information you never intended to share. Removing it takes just a few minutes — whether you use Adobe Acrobat, a free online tool, or the simple print-to-PDF trick. Make it a habit any time you share a document outside your immediate circle.