Not visualizing PDF with online tools

[Juanifurno]

Hello, 

Need advice on this matter. Got a pdf with I can open and read with acrobat reader but when uploading the same pdf in an online tool (also in the online adobe free trial version) the pdf is blank. 

Can Anyone explain me what it happening and how to solve it?

Thanks!

[Juanifurno]

Same with the Adobe PDF Embed API Demo

https://documentservices.adobe.com/view-sdk-demo/index.html#