Vertical vs Horizontal Merging
Choosing the right merge direction affects how viewers experience your combined image.
Horizontal Merging
Best for:
- Before/after comparisons (left=before, right=after)
- Landscape panoramas
- Timeline sequences
- Side-by-side product comparisons
Vertical Merging
Best for:
- Top-to-bottom workflows or processes
- Portraits of different heights
- Stacked screenshots (mobile apps)
- Long-form infographics
Grid Merging
Best for:
- Multiple categories (2×2, 3×3)
- Equal importance items
- Social media collages
Decision Framework
Ask: How does the viewer read the image?
- Left to right → Horizontal
- Top to bottom → Vertical
- All at once → Grid
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