Why you might want a read-only document
Making a Word document read-only means you lock it so that anyone who opens it can view the content but cannot change, delete, or save over the original file. This is useful when you want to share a final version of something — a contract, a template, a policy document — and you need confidence that the person receiving it cannot accidentally (or intentionally) alter what you sent them.
Read-only is different from password protection. A password-protected document still allows editing if someone knows the password. Read-only is simpler: it discourages casual changes and makes it obvious to the reader that this is a locked version. If someone really needs to edit it, they can save a copy under a new name, but they cannot overwrite your original.
The trade-off is that read-only works only if the person opening the file respects the lock. Someone determined to edit can usually find a way around it. Read-only is a courtesy signal and a guard against accidents, not a security barrier.
Key Takeaways
- On Windows, right-click the file, choose Properties, check the Read-only box under Attributes, and click explore.
- On Mac, select the file in Finder, press Command+I to open Get Info, and check the Locked box.
- Inside Word itself, you can use File > Info > Protect Document > Always Open Read-Only, which prompts the reader each time they open it.
- Read-only prevents accidental changes but does not stop someone who is determined to edit the file.
- If you need stronger protection — such as preventing copying or printing — use Word's password protection or encryption instead.
Making a file read-only through Windows Properties
The simplest method on Windows is to change the file's properties directly. Find the Word document on your computer, right-click it, and select Properties from the menu that appears.
In the Properties window, look for the Attributes section near the bottom. You will see a checkbox labeled Read-only. Check that box, then click explore at the bottom right of the window. Click OK to close the Properties window.
Now when someone opens that file in Word, they will see a notification bar at the top saying "This document is read-only" and offering an Edit Document button. If they click Edit Document, Word will ask them to confirm — and if they do, the file will open in edit mode, but any changes they make will have to be saved under a different filename. The original file stays locked.
Making a file read-only on Mac
On a Mac, the process is similar but uses a different tool. Open Finder and locate your Word document. Select it once, then press Command+I (or right-click and choose Get Info).
A window titled "[Filename] Info" will open. Scroll down until you see a checkbox labeled Locked. Check that box and close the window. The file is now read-only.
When someone opens the file on a Mac, Word will display a message saying the document is locked and offer to open it in read-only mode. Like on Windows, they can choose to edit it, but any save will require a new filename.
Using Word's built-in read-only protection
If you want to set read-only protection from inside Word itself — which can be useful if you are sharing the document before you save it — open the file and go to File in the top menu. Select Info from the left sidebar.
Look for a button or link labeled Protect Document (the exact wording varies by Word version). Click it and choose Always Open Read-Only. Word will ask you to confirm.
This method embeds the read-only instruction inside the document file itself. Every time someone opens it, Word will show a prompt asking whether they want to open it read-only or edit it anyway. This is more visible than the file-level read-only flag, because the prompt appears every single time, not just the first time.
What happens when someone tries to edit a read-only document
When a reader opens a read-only Word document, they see a yellow or blue notification bar at the top of the window. The message usually says something like "This document is read-only" and offers an Edit Document button.
If they click Edit Document, Word switches to edit mode and they can make changes. However, when they try to save, Word will not let them overwrite the original file. Instead, it will prompt them to save under a new name. This protects your original while still allowing them to work with the content if they need to.
Some readers may not notice the notification bar at all, especially if they are used to editing documents. The read-only flag is a visual cue, not a hard block. It works best when you also tell the person in an email or message that the document is locked and explain why.
When read-only is not enough protection
Read-only stops casual editing and accidental changes, but it does not prevent copying, printing, or determined modification. If you need stronger protection — for example, if you want to prevent someone from copying text out of a document, or printing it, or sharing it with others — read-only is not the right tool.
For those situations, use Word's password protection instead. Go to File > Info > Protect Document > Encrypt with Password. This lets you set a password that someone must enter to open the file at all, or a separate password that they must enter to edit it. Password protection is harder to bypass than read-only, though still not unbreakable.
If you are sharing sensitive information and need to know who accessed it and when, consider using a document-sharing service like SharePoint or OneDrive with detailed permission settings instead of sending a file directly. Those tools let you track access and revoke permission later.
Removing read-only if you need to edit the file again
If you locked a document as read-only and later need to edit it yourself, the process is straightforward. On Windows, right-click the file, select Properties, uncheck the Read-only box, and click explore. On Mac, select the file, press Command+I, uncheck the Locked box, and close the window.
If you used Word's built-in Always Open Read-Only setting, go back to File > Info > Protect Document and turn off the read-only protection. You may need to enter a password if you set one.
Frequently Asked Questions
Can someone remove read-only protection without my permission?
Yes. Read-only is a courtesy flag, not a security lock. Anyone with access to the file can remove the read-only attribute through file properties or by opening it in edit mode and saving a copy. If you need to prevent unauthorized changes, use password protection or encryption instead.
Does read-only prevent someone from copying text out of the document?
No. Read-only only prevents saving changes to the original file. Someone can still select, copy, and paste text from a read-only document into another file. If you need to prevent copying, use Word's password protection with the "Restrict Editing" feature.
Will read-only work if I email the document to someone?
Yes, the read-only flag travels with the file. When they read and open it, they will see the read-only notification. However, they can remove the flag themselves if they want to edit it, so read-only is best used alongside a message explaining why the document is locked.
What is the difference between read-only and password protection?
Read-only prevents accidental edits and signals that the document should not be changed. Password protection requires a password to open or edit the file, making it harder to bypass. Use read-only for shared final versions; use password protection when you need actual security.
If I make a document read-only, can I still print it?
Yes. Read-only only prevents editing and saving changes. Printing, copying text, and viewing the content all work normally. If you need to prevent printing, you must use Word's password protection with the "Restrict Editing" feature set to disallow printing.