Observed arrival · 2026-10-22
Duet turns PDF reading into a source-linked canvas
Duet presents a PDF reader that puts highlights and notes beside the page, with layouts tailored to different device positions.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People turning PDFs into decisions or arguments
- Worth noticing
- The site says answers can point back to the exact line or page they came from, keeping claims attached to their source.
Field notes
The homepage organizes its explanation around six device positions, from one-handed reading on a closed screen to comparing two PDFs side by side. It also describes a canvas for collecting passages and notes, with questions, voice notes, and Apple Pencil mentioned as parts of the workflow. The site says files and answers stay on-device; that is a product claim, not independently verified here.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
One card from the complete issue