Create a PDF in-memory from SQL and upload to a document library in a provider-hosted add-in

Hi,

I have a SharePoint provider hosted add-in and I wish to achieve the following.

1. User clicks a button.
2. I extract various data from the back-end SQL Server database.
3. Then, all in memory, I need to...
4. Create a PDF using these data.
5. Upload the in-memory PDF to a SharePoint document library on the host web to which the addin has read/write permissions.

Is this possible?

What tools or plug-ins may be needed? e.g. would the Open XML SDK enable me to do this.

Thanks for any help.

Maz

Maz