How do I stop duplicate highlights when I clip the same page twice?
Short answer
Duplicates happen because the clipper sends every highlight on the page each time. Use a tool that remembers what each note already received. Lumen keeps a delivery ledger per destination, so a highlight is written once, no matter how often you sync or clip.
Step by step
- Keep highlighting the page as usual.
- Sync (or let auto send run).
- Only highlights the note has never received are appended.
Good to know
Technically, Lumen stores a row per highlight and destination pair; the database refuses a second delivery. Retries after an error are safe for the same reason.
Related questions
Answer
Will deleting a highlight remove it from my note?
No. Notes are yours; Lumen only appends.
Updated 2026-11-01.