Revision history is a good way to track what has been changed on a document, particularly if there is a group of people involved in the document. In an online-based service like Google Docs, this seems pretty obvious as an easy collaboration is the main standpoint.
But, revisions can be a privacy concern if you want to share the document but wouldn’t let them see what’s changed and who has been contributed.
While Google Docs doesn’t really offer a delete button on any particular document, at least there is a workaround that could clean the revision history quickly. Here’s how.
1. Open the document on Google Docs, go to File > Make a copy.
2. Then hit OK. I suggest you not changing the default name to avoid confusion over the original document.
3. Now, go back to the Google Docs main page and Remove the original document.
4. Click Move to Trash.
5. Rename the copy of the original document.
6. Use the same name from the original document.
7. To see the result, open the document, go to File > Version history > See version history. The version history should be empty by now.
The duplication will create the exact same copy of the document but without revisions. In case you changed your mind, the original document can always be recovered within 30 days. Learn more about recovering deleted Google Docs here.