J-Card Designer v0.3.6

Build: v0.3.6 / 2026-07-13 — simpler panel editing build

Adapts your own images only. No artwork is generated or invented — only cropped, scaled, rotated, repositioned, sampled for color, or paired with flat colors and type.

Ctrl+Z to undo, Ctrl+Y or Ctrl+Shift+Z to redo.

1. Source Images Front source image — uploads directly to Front panel Back/flap source image — uploads directly to Flap panel

Uploads appear on the canvas automatically: front image → Front, back image → Flap. Use the panel buttons below to send either image to the spine or replace a panel.

No source images uploaded yet.

2. Put Artwork on Panels

These buttons update the chosen panel instead of stacking duplicate layers. Use Duplicate below only when you intentionally want a second crop.

3. Edit Panel Artwork

Upload artwork or choose a panel to edit.

4. Selected Artwork

No artwork selected. Click Edit Front, Edit Spine, Edit Flap, or a row above.

5. Text Artist name Album title Spine text Side 1 tracklist (one track per line) Side 2 tracklist (one track per line)

Side 1: 0:00 · 0 lines

Side 2: 0:00 · 0 lines

Durations like “Track Name (3:42)” are totaled automatically. Long lists warn before they overflow the flap.

6. Backgrounds Global background color

Flap override

Spine override

Front override

A panel override replaces the global background for that panel only.

7. Color Sampling Sample from Apply to

Useful when only part of a source (e.g. a tracklist crop) is placed — sample the full source's color and apply it to the whole panel so it looks continuous.

8. Guides Show fold guides on canvas

9. Project

Autosave keeps a local browser copy when storage allows. JSON export is still the safest backup.

10. Export

Dimensions

Canvas: 1219 × 1200 px @ 300 DPI
Physical size: 4.0625in × 4in
Left flap: 300 px (1.0 in)
Spine: 150 px (0.5 in)
Front panel: 769 px (2.5625 in)