PicVb

PDF viewer help

Tools

• View — scroll and read (default)
• Hand Off/On — webcam gestures (local only, opt-in)
• Comment — click page to add a comment pin
• Draw — freehand strokes (unsaved until export)
• Save Comments — admin only; saves a new annotated copy

Hand gestures (when Hand On)

• Two-hand pinch, hands wider — zoom in
• Two-hand pinch, hands closer — zoom out
• Point down (open palm, thumb low) — next page
• Point up (open palm, thumb high) — previous page
• One-hand grip + drag — pan page (tracks thumb edge)
• Open palm — stop drag

Hand draw (Hand On + Draw)

• Open palm — move pointer on the page (follows thumb edge)
• Pinch — start drawing at pointer
• Release pinch — stop drawing
• Two-hand pinch (hold briefly) — undo last stroke

Tune gestures in Admin → Hand Gesture Tuning. Hand draw has separate pinch close/open and hold-frame controls for switching between pointer and draw. Camera requires HTTPS (or localhost).

Presenter mode

• Hide Panel — collapse header and toolbar for a cleaner stage
• Add ?present=1 to the viewer URL to start with the panel hidden
• F — toggle fullscreen on the presentation area