To edit PDF Docs in Google Drive:
Log in on Google drive on your browser and select the pdf file you want to edit
Right click on your pdf file, click Open with and select Google docs
It will open up a new tab and will create a new copy of the file where you can edit
You can rename it and save it as a pdf file again
Click File, Download as, select PDF Document (.pdf)
Added resource on how to Edit PDF Docs in Google Drive:
From: https://pdf.wondershare.com/tutorial/...