Flatten & Deskew
Straighten a design photographed at an angle. Mark the four true corners and we perspective-correct it into a clean rectangle, ready for tracing or print.
Credit Usage
Options & Settings
| Setting | Type | Description |
|---|---|---|
| Mode | Buttons | Perspective pulls artwork shot at an angle back to square using four corner handles. Straighten just rotates a scan that is tilted but not skewed. PerspectiveStraighten |
| Corner Handles | Drag | Perspective mode only. Drag the four handles onto the real corners of the artwork, and use the arrow keys for fine nudges. The cyan guide quad shows the area that gets flattened. |
| Auto-detect edges | Button | Perspective mode. Finds the artwork's corners and places the handles for you. |
| Grid | Toggle | Perspective mode. Shows a guide grid over the photo. |
| Auto-crop edges | Toggle | Perspective mode. Trims the edges of the result, which keeps the marked area's true proportions. |
| Rotation | Slider | Straighten mode. Rotate until horizons and edges sit level; transparent corners are cropped away automatically. -45° to 45° |
| Re-adjust | Button | Shown with a result. Goes back to the adjustment so you can change the correction. |
When to Use
- Straightening a phone photo of a fabric swatch or print
- Flattening a scan that came out skewed or keystoned
- Squaring up artwork before vectorising or tiling
- Recovering a usable flat file from an angled reference shot
Pro Tips
A sharp, evenly-lit photo with all four corners visible gives the cleanest result
Place each handle exactly on the artwork's corner — anything outside the quad is dropped
Flatten first, then run the result through the AI Image Upscaler if you need more resolution
Use the before/after slider to confirm the correction before downloading
The download is a PNG. Photos larger than 5000px on the long side are scaled down to 5000px first
What to Expect
Best Results
- Photos or scans with all four corners visible
- Flat artwork shot at an angle
- Rectangular designs needing squaring up
Limited Results
- Curved or draped surfaces
- Corners hidden or cropped out of frame
- Very low-resolution sources
Real-World Examples
Swatch Photo
A phone photo of a tilted fabric swatch was corrected by marking its four corners, producing a straight rectangular file for tracing.
Skewed Scan
A keystoned scan of a hand-painted motif was flattened into a clean rectangle, ready to vectorise.
Ready to try Flatten & Deskew?
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