To embed a PowerPoint presentation from Google Drive please follow these steps:

1.    In Google Drive, open your PowerPoint in Google slides. 

2.    Click File > Publish to the web

3.    Click on the Embed tab > Publish > OK

4.    Copy the embed code

5.    In PebblePad, on your portfolio page: 

6.    Add Content > Embed block

7.    Paste the Embed code into the block.