Google Docs has no LaTeX export, so convert in two steps. Choose File > Download > Microsoft Word (.docx) or Markdown (.md), then run Pandoc: pandoc mydoc.docx -s -o mydoc.tex --extract-media=. The .docx route keeps headings, lists, tables, images and equations. Finally, open the .tex file in Overleaf and tidy the formatting.
To find a Google Doc's parent folder, click the Move icon (a folder with an arrow) next to the document title. The dialog shows the current location; click the open-in-new-window arrow beside it to open that folder in Google Drive. You can also use File → Details, which lists the document's Location.
To lock a Google Doc, open Google Drive, right-click the file, choose File information → Lock, and confirm. A locked Doc can't be edited, commented on or suggested on until someone unlocks it. Anyone with edit access can unlock it, so locking prevents accidents rather than enforcing security.
To convert a Google Doc to EPUB, open it and choose File > Download > EPUB Publication (.epub). Word has no built-in EPUB export, so upload the .docx to Google Drive, open it in Google Docs and download it as EPUB, or use DAISY's free WordToEPUB app on Windows.
