Schematic Highlighter — Docking + Tabs (v3.2f: annotation editor fix)

1) Load schematic image

…or drag & drop an image here

PNG (black lines on white) gives best results. PDFs need to be exported to an image first.

Net Label: click a wire to name it. Continuity: pick two pins → pass/fail.

Eraser size (px)10

Eraser clears the active layer. Hold mouse and scrub to remove highlight pixels. Use Line to draw straight highlight segments.

Click near a thin black line to trace the connected stroke. Middle-click or hold Space to pan. Wheel = zoom. Shift+Click to clear first.

Stop at junctions (segment between tees/symbols)

Auto-detect dark-line threshold

Manual threshold120

Auto picks a value using Otsu on luminance histogram.

Auto-downscale large images

Max dimension (px)4096

Color Size 18px

Show annotations Show net labels Free continuity (click any two points)

Snap radius (px)6

Default opacity0.70

Default color

Highlight thickness (px)6

Pixel limit (×1000)600

Zoom100%

Tips: click a layer row to activate it. Eye toggles visibility. Color/opacity affect rendering.

Drag one of the symbols onto the canvas. Click to select; drag to move; Delete to remove; [/] to rotate; +/- to scale.

Snap to grid

Grid size (px)10

Snap to existing lines Lock moves to active layer

Size (px)64

Symbol color

Label text

Label size (px)16

Label color

Click a net to edit. “+ Net” switches to Net Label mode; then click a wire to create it. Use the Zoom button on a row to center on that net.

Quick check that tracing + overlay + autos are working.