On an iPad: open the PDF, tap Share, then choose GoodNotes or Notability.
On paper: print it. Print the session pages as many times as you need.
Before your session: write one line on the intention page.
After: write or draw what came up while it's fresh.
Want more?
Use it on your phone, free. The online journal has the full set: session logs, drawing, and sleep and habit trackers. No account, and nothing leaves your device.