First of all you need to create Adobe API Key (Client ID) to embed the PDF.
At first, Sign In to Adobe Developer Console.
Then, generate a PDF Embed API Key (Client ID) from here.
After generate API Key, copy the key.
If you want to get this API Key again, you can get it from Adobe Console.
Before use adobe embedder insert API key in PDF Poster settings page.
Then enable ‘use adobe PDF embedder’ option from block sidebar settings.
Select “Lightbox” from Embed Mode to open PDF in Lightbox
Select “Inline” from Embed Mode to open like a webpage
