Open a PDF that lives in your graph's assets/ (or drop one in) and read it in a side pane right next to your notes.
Select text in the PDF to highlight it; click a highlight again to change its color.
Ctrl+drag a rectangle to clip a figure or an equation as an image highlight.
Every highlight becomes a block on a notes page named after the PDF, so you can write underneath it, link it, and reference it like any other bullet — and each note jumps straight back to its spot in the document.
It's how you turn a paper into linked, searchable notes without ever leaving Tine.