What redlining does and why you might use it

Redlining in Word means turning on Track Changes, which records every edit you or someone else makes to a document. Instead of silently overwriting text, Word shows insertions, deletions, and formatting changes as visible marks. The original text stays on screen with strikethrough or color coding, and new text appears in a different color. You can accept or reject each change one at a time, or all at once.

You use this when you're sharing a document with others and want them to see exactly what you changed — or when someone sends you a document and you want to mark it up without erasing their original work. It's standard in editing, legal review, and any situation where you need a record of who changed what and when.

From a privacy angle, Track Changes lives inside your document file. If you send a Word file with tracked changes to someone else, they can see your edits, your username, and the timestamp of each change. If you turn off Track Changes before sending the file, the edits disappear from view — but the data may still be embedded in the file's metadata. That's why understanding how to control what gets sent matters.

Key Takeaways

  • Turn on Track Changes in the Review tab before you start editing, so Word captures every change from the beginning.
  • Word shows your username and the date and time of each edit, so anyone who opens the file can see who changed what.
  • You can accept or reject individual changes, or accept all changes at once to finalize the document.
  • Turning off Track Changes hides the marks but may leave metadata in the file, so use File > Info > Check for Issues > Inspect Document if you need to remove all traces before sending.

How to turn on Track Changes

Open the document you want to edit. Go to the Review tab at the top of the Word window. Click Track Changes — it's usually near the left side of the ribbon. A small dropdown arrow appears next to it; click that arrow and select Track Changes again to toggle it on. The button will highlight or show a checkmark to confirm it's active.

From this point forward, every keystroke you make — every word you type, delete, or move — will be recorded. If you paste text in, Word marks it as an insertion. If you delete a sentence, Word shows it with strikethrough and a color. Formatting changes (bold, font size, color) also get marked.

If you want to control whose edits get tracked, click the dropdown arrow next to Track Changes and select Track Changes Options. You can change the color used for your edits, choose whether insertions and deletions show as marks or balloons (comment boxes on the side), and set other display preferences. For most people, the defaults work fine.

What your username and metadata reveal

Word pulls your username from your computer's user account or from your Microsoft account if you're signed in. Every change you make includes that username, plus the exact date and time. If you send the document to someone else, they see all of this information. If your username is "John Smith" and you delete a sensitive sentence at 3:47 p.m. on a Tuesday, that's what the recipient sees.

Even after you turn off Track Changes, Word may store information about the document's editing history in the file's metadata — data about the data. This includes author names, creation dates, and sometimes fragments of deleted text. If privacy matters for this document, you need to clean this out before sending it to anyone.

How to accept or reject changes

Once you or a collaborator has finished editing with Track Changes on, you need to decide what stays and what goes. Go to the Review tab. On the right side, you'll see buttons for Accept and Reject. Word highlights the first change in the document.

Click Accept to keep that change and move to the next one. Click Reject to undo it and restore the original text. You can also click the small arrow next to Accept or Reject to see options like "Accept All Changes" or "Reject All Changes" if you want to finalize everything at once.

As you accept or reject changes, they disappear from view and the document moves closer to its final form. Once you've processed all changes, the document no longer shows any tracked edits — it looks like a normal document. At that point, you can turn off Track Changes if you haven't already.

Removing metadata before you send the file

If you've finished editing and accepted all changes, but you want to make sure no hidden information about the document's history travels with the file, use Word's built-in cleaning tool. Go to File in the top left. Click Info. Look for a button or link that says Check for Issues — it may appear as a dropdown. Select Inspect Document.

A dialog box opens showing what metadata Word found: document properties (author, creation date), comments, tracked changes, versions, and other hidden content. Check the boxes next to anything you want removed. Click Remove All next to each category. Then click Close and save the file.

This step is optional if you're only sharing with trusted collaborators who already know who you are. It's important if you're sending the document to someone you don't know well, or if the document's editing history is sensitive. Removing metadata doesn't change how the document looks or reads — it just strips out the behind-the-scenes information.

Viewing changes from other people

When someone sends you a Word document with Track Changes turned on, you'll see their edits marked up in color. Their username appears next to each change. The document may look cluttered if there are many edits, especially if they're shown as balloons (boxes on the right margin).

You can change how changes display without accepting or rejecting them. Go to Review and look for Display for Review — a dropdown menu. Choose All Markup to see everything, No Markup to see the final version without marks, Original to see the document as it was before any changes, or Revisions to see only the changes. This helps you read the document more easily while you decide what to do with each edit.

Common mistakes and how to avoid them

The biggest mistake is forgetting to turn on Track Changes before you start editing. If you edit for ten minutes and then turn on Track Changes, Word only records changes from that point forward. The earlier edits are baked into the document with no record of what changed. To avoid this, turn on Track Changes as soon as you open a document you plan to edit with someone else.

Another common issue is sending a document with Track Changes on when you meant to send the final version. The recipient sees all your edits and your username, which may not be what you intended. Before you send any document, check the Review tab to confirm whether Track Changes is on or off. If you want the recipient to see the final version only, turn off Track Changes and accept all changes first.

A third pitfall is assuming that turning off Track Changes removes all evidence of your edits. It doesn't — it just hides the marks. The metadata stays in the file. If you need to send a truly clean version, use the Inspect Document tool described above.

Frequently Asked Questions

Can I see who made each change if multiple people edited the document?

Yes. Word assigns a different color to each person and displays their username next to their changes. If three people edited the same document, you'll see three different colors and three different names. This makes it straightforward to see who changed what, though it can get visually busy if there are many edits.

What happens if I accidentally reject a change I meant to accept?

Use Ctrl+Z (or Cmd+Z on Mac) to undo the rejection when ready after it happens. Word will restore the change to its pending state so you can accept it. If you've already moved on and accepted other changes, you may need to manually re-type the rejected text.

Does Track Changes work the same way in Google Docs?

Google Docs has a similar feature called "Suggesting mode" that works differently. In Suggesting mode, edits appear as suggestions that the document owner must accept or reject. It doesn't require you to turn on a global setting — you just click a button to switch between editing and suggesting. The privacy model is also different because Google Docs is cloud-based and stores all versions on Google's servers.

Can I password-protect tracked changes so someone can't turn them off?

Word doesn't offer a built-in password protection for Track Changes itself. However, you can protect the entire document with a password so others can't edit it without the password. Go to File > Info > Protect Document > Encrypt with Password. This prevents anyone from turning off Track Changes or making edits without the password, but it also prevents them from accepting or rejecting changes.

If I delete Track Changes from a document, is there any way to recover them?

Once you accept or reject all changes and save the file, the tracked changes are gone from that file. However, if you saved earlier versions of the document, you may be able to recover them. In Word, go to File > Open > Recent and look for version history or previous versions. On OneDrive or SharePoint, you can restore an earlier version of the file. On your computer, check your backup or recovery software if you have one.