Document Perspective Correction
Document photo
Upload a photo to start
- Drag the points onto the corners of the document. Click any edge of the grid to add a point there; double-click a point to remove it.
- Keyboard: Tab to focus a point, arrow keys to move it (Shift for bigger steps), Delete to remove it.
Corrected preview
Preview will appear here
About document perspective correction
How to fix the perspective of a document photo
- Upload a photo of the document: drop it on the editor or use the file picker.
- Drag the four corner points onto the corners of the page.
- Click any edge of the grid to add a point where the page is bent or has more than four corners.
- Double-click a point, or select it and press Delete, to remove it.
- Press Preview to check the corrected page, then Download to save it as a PNG image.
All processing happens in your browser: photos of documents are never uploaded anywhere.
Tips for a clean result
- Photograph the whole page with some background around it, so every corner is visible.
- Use even lighting and avoid shadows from your hand or phone; the tool corrects geometry, not exposure.
- Zoom in with the mouse wheel or pinch gesture to place the corner points precisely.
- Use the grid lines as a guide: when they follow the printed lines of text, the perspective is right.
What is perspective correction?
When a document is photographed at an angle, its rectangular page appears as a trapezoid. Perspective correction maps that shape back onto a rectangle, so the result looks like a flat scan with straight edges and readable text.
Is my document uploaded anywhere?
No. The image is opened and processed entirely in your browser using the Canvas API. Nothing leaves your device, which makes the tool safe for contracts, IDs, and other sensitive papers.
Which image formats and sizes are supported?
Any image your browser can open, including JPG, PNG, WebP, and HEIC on supporting devices, up to 25 MB. The corrected image is saved as a lossless PNG at the full resolution of the selected area.
Can it fix a curved or folded page?
Yes, to a degree. Add extra points on the grid edges where the page bends and drag them onto the real outline. The grid between the points follows the deformation, so slightly curved book pages and folded letters come out straight.