Kumu doesn't have any built-in support for uploading documents (e.g. PDFs or .docx files) to profiles. However, there are a few good ways to work around this.
The simplest solution is to upload your document to any online platform, (Google Drive, One Drive, Dropbox, Scribd, etc.), get a link to the document, and add that link to a Kumu profile. Readers will be able to click that link to open the document in a new tab.
If you'd rather allow readers to read the document directly inside Kumu, there are two features that can help: widgets and lightbox.
Embed a document using widgets
If you upload your document to Scribd, you can use our Scribd widget to embed the document directly into any profile.
Many document hosting platforms allow you to create a share/embed link that you can use to embed the document in other platforms. In Kumu, all you need to do is retrieve that share/embed link, then add ?lightbox or ?lightbox=full to the end of the URL.