To upload a file to your project and create a link that can be included in your email campaign, follow these steps:
Upload the document: Go to the ‘Page & Survey’ tab within your project layout and click the "+ Add Documents…" button, then "Start upload" for your PDF document.
Get the link for the document: Once your file is uploaded, right click the file and select "Open..." in a new tab or window. Copy the URL from this new tab; this will be the link to your PDF.
Insert the link in your email: You can now use this link in your email campaign. When editing your email content, add this link through the text editor to allow recipients direct access to the PDF.