I have some PDFs on my site. They contain relevant content to the site and are legitimate documents people will want to read (especially as the site is written in English and the majority of the documents are translations and information relevant to different countries).
However, I have run the SEO tool SEMRush which indicates these pages (the PDFs) only have one internal link linking towards them. This is creating notifications lowering my overall SEO score.
Should I be adding a nofollow attribute to PDF links to remove the warnings SEMRush is highlighting, or is it more damaging to have them nofollow?
I have read multiple articles regarding the nofollow and have received nothing but more confusion and disdain.