Document perspective correction
Adjust four corners to straighten a document photo, enhance it and export PNG, JPG or PDF.
Instructions and limits
- Upload or paste a document photo, drag its four corners to the paper edges and fine-tune their positions.
- Choose automatic, A4 or Letter proportions and a color mode, then preview and download PNG, JPG or a single-page PDF.
JPG, PNG and WebP: 25 MB, 16 MP and 8192 px per side. Select corners manually; edges are not detected automatically. Working images and output are limited to a 3000 px edge and 6 MP. Adjust black-and-white enhancement for the photo. Perspective correction cannot recover blurred, reflected or obscured text or flatten curved book pages. PDF output contains an image without a text layer.
Use cases and example
Straighten angled photos of paper documents, receipts or notes into a rectangle, remove the surrounding desk and save a color, grayscale or black-and-white scan.
Upload an angled A4 document photo, move the four handles to its paper corners and choose A4 and grayscale. Check that all text is visible in the corrected preview, then download PDF. Use Image to text OCR on the exported image to recognize its text.
Corners are chosen manually; selections must not cross or become too narrow. Automatic proportions estimate the photographed edge lengths; choose A4 or Letter when the paper size is known. Perspective correction works on flat documents and does not flatten curved book pages. Black-and-white mode can lose faint text.