Frequently asked questions
Is Scandut really free?
Yes. The scanner — page detection, perspective correction, enhancement, PNG/JPG/PDF export and text extraction — is free to use, supported by ads. There is no watermark and no page limit.
Are my photos uploaded to a server?
No. All processing runs inside your browser on your own device. You can verify this: load the page, switch to airplane mode, and the scanner still works. Nothing you scan is sent to us or stored by us.
Do I need to install an app or create an account?
Neither. Scandut runs in any modern browser on phones, tablets and computers. Open the site, drop in a photo (or tap the camera button on a phone), download the result.
Which file types can I scan?
JPG, PNG and WebP images, including several at once — you can also paste an image with Ctrl+V. Video scanning — filming a stack of pages and letting Scandut pick the best frame per page — is under development.
The automatic detection missed my page. What now?
Tap that page in the review grid and drag any of the four corners to the right spot; a magnifier appears so you can hit the exact paper edge. Manual corners go through the same perspective correction, so the result quality is identical.
How do I make a multi-page PDF?
Add all your photos at once. Every page appears in a review grid with its detected scan area, so you can fix only the pages that need it, then scan everything in one go. On the results screen, reorder or rotate pages if needed, choose original size or A4, and press "Download all as PDF".
What resolution do the scans have?
Scans are made from your original photo at full resolution, up to about 2600 pixels on the long edge — roughly 220–310 DPI for an A4 page. That is comfortably sharp for reading, printing and archiving.
Can Scandut turn a scan into editable text?
Yes. On the results screen, open "Extract text (OCR)": Scandut reads the text on every scanned page — Korean and English, including mixed documents — and lets you correct it before downloading a Text (.txt), Word (.docx) or Excel (.xlsx) file. Recognition also runs entirely in your browser; the first run downloads the language data (about 15 MB) once.
How accurate is the text extraction?
On clean scans of printed text, very accurate. Accuracy drops with handwriting, tiny or decorative fonts, and blurry or dim photos. Always check numbers and names in the editable box before downloading — that is exactly what it is there for.
Why does my scan look uneven or shadowy?
Try Document mode, which removes gradual lighting differences, and raise the strength to Strong for faint print. Hard shadows with sharp edges are best avoided at shooting time — see our tips on photographing documents without shadows.