The print command opens the Print Manager — a dedicated export window with a live preview canvas, format selector (PNG / JPEG / WebP / PDF), monochrome toggle, and optional area crop. Nothing is sent to a physical printer; the output is downloaded as a file.
Opening the Print Manager
Click the Print toolbar button or type print in the terminal. The Print Manager opens immediately showing a preview of the current viewport.
Print Manager layout
The window has two panels:
- Left sidebar — all export controls.
- Right panel — live preview canvas that updates as you change settings.
Sidebar controls
| Control | Description |
|---|---|
| Change Area | Crop to a custom rectangle on the canvas (see below) |
| Monochrome toggle | Convert all colored lines to black — on by default for clean print output |
| Format dropdown | PNG, JPEG, WebP, or PDF |
| Export button | Generate and download the file |
Selecting a custom export area
By default the preview shows exactly what was visible on the canvas when you opened Print Manager. To export a specific region:
- Click Change Area — the Print Manager hides and the canvas becomes interactive.
- Click the first corner of the export rectangle.
- Click the opposite corner — the Print Manager reopens with the selected area in the preview.
Press Escape during area selection to cancel and restore the previous area.
The preview canvas resizes dynamically to match the exact aspect ratio of the selected area, so the preview is pixel-accurate.
Export formats
| Format | Best for | Notes |
|---|---|---|
| PNG | Lossless, sharp lines | White background, no transparency |
| JPEG | Smaller file for sharing | 95% quality, slight compression |
| WebP | Smallest file for web | Same 95% quality, better compression than JPEG |
| Print-ready documents | Image embedded at 150 DPI inside PDF container |
The exported file is named kulman-<timestamp>.<ext> and downloads automatically.
Export resolution and background
- Maximum resolution: 2000 × 2000 pixels, scaled proportionally to the selected area.
- Background is always white.
- Layers marked as non-plotting are excluded from the export.
Keyboard reference
| Key | Action |
|---|---|
Escape (during area selection) | Cancel area selection, restore previous area |
Escape (in Print Manager) | Close the Print Manager |