If you select this, Google will convert the PDF to a Docs file and open it for you. Content can be edited in Docs, but PDF conversion can be a tricky process.

Steps: Upload your PDF to Google Drive, right-click the file, and select "Open with" > "Google Docs." Google Docs will convert the PDF, enabling you to copy and paste the text.

How frustrating is it when the text and images get misaligned because you’ve had to open a PDF in Google Docs or Sheets? There’s no getting it back the way it was manually.