Open Google Docs and create or open a document
Place the cursor where you want the PDF content to appear
Go to Google Drive and upload the PDF
Open the PDF in Google Drive
Click Open with and choose Google Docs
Wait for the PDF to convert into an editable Google Docs file
Copy the converted content
Paste it into your target Google Docs document
If you only need the PDF as a file, insert a link to the PDF from Google Drive
If you need the PDF visible in the document, insert screenshots or exported images of the PDF pages into Google Docs