When you crop with Rune, the remaining image maintains full original quality. No compression artifacts or quality degradation.
What is Lossless Cropping?
- Crop area = original quality
- Pixels not recompressed
- Output maintains source quality
How Quality Is Preserved
During Cropping
- Original image is loaded
- You select crop area
- Selected pixels are extracted
- No re-encoding of pixels
Output Format
- PNG output = lossless quality
- Original pixel data preserved
- No compression artifacts added
Quality Comparison
| Operation | Quality Impact |
|---|---|
| Cropping (Rune) | None |
| Resizing down | Slight (sampling) |
| JPG re-save | Lossy compression |
| Multiple edits | Cumulative loss |
When Quality Matters
Photography
Professional photos need quality preservation.
Print Preparation
Print projects require maximum detail.
Archiving
Long-term storage should preserve quality.
Further Editing
If you'll edit more later, start lossless.
Pro Tips
- Start with highest quality source
- Crop before other edits
- Save as PNG to maintain quality
- Avoid multiple format conversions
Technical Details
Rune uses HTML5 Canvas for cropping:
- Direct pixel manipulation
- No intermediate compression
- PNG encoding for output
Conclusion
Professional cropping shouldn't degrade your images. Rune's Image Cropper preserves full quality in every crop.