Google Docs is a cloud service that allows you to collaborate on documents with other people. You can, for example, create web-based documents (spreadsheets, documents, and slides) and have multiple people working on them in real-time. Google Docs comes with a built-in option to create backup copies of your important files (for future reference) before sharing them with other users. Please refer to the below instructions to duplicate your documents, presentations, and spreadsheets.
Make a Copy of a Google Docs Document
Sign in to Google Docs and open the desired file. Click on the File menu > Make a copy:
Rename the document to your liking and tick the Share it with the same people checkbox to keep the same sharing options as the original file: