An update is available for the Newforma Konekt PDF printer when using the latest version of the add-in (see Download the PDF Printer Update for Newforma Konekt for Revit).
The Newforma Konekt PDF printer is required to be able to publish sheets to Newforma Konekt.
During the add-in installation, there is a dedicated page that prompts you to download and install the PDF printer separately.
If you do not install the PDF printer during the initial installation of Newforma Konekt, you will be prompted to install it when you use the Publish feature of Newforma Konekt in Revit.
In the Publish to Newforma Konekt dialog > Publish PDF Sheets portion, click Download. Once the installation is completed, click Check again.