← All Tools

Document scanner (photo → PDF)

Upload a photo of a paper document and we flatten its four corners and whiten it into a clean scanned PDF. Save several pages as one PDF or each as a separate image. Free, with no watermark.

A photo of a paper document — the four corners are detected automatically

Paper photo → PDF (free, no watermark)

DocumentAutomatically detects the four cornersto flatten it out, andWhitening strength (0–100)to brighten the paper.
If the corners are off,AdjustDrag directly here to position it (while draggingMagnifierappears enlarged).Rotateis also supported.
Save several pages as one PDF, or each as a separate image. Uploaded photos are not stored.

What is Online Document Scan?

When you have no scanner, this tool turns a phone photo of a paper document into a clean PDF that looks like a real scan — straightening the skewed angle and removing shadows. Contracts, receipts, and assignments come out tilted and dark when you just snap them. This tool detects the document's four corners, flattens it square, and brightens it, and unlike apps such as CamScanner it never stamps a logo or watermark.

How it works

1 Upload a photo of the paper document. You can upload several at once to make multiple pages.
2 Check the four corners detected automatically and drag them by hand if they are off. As you move a corner, a magnifier appears so you can adjust precisely.
3 If needed, adjust rotation and whitening (brightness), then download the flattened result as a PDF or per-page images.

Frequently Asked Questions

Does it stamp a logo or watermark like CamScanner? ⌄

No. No logo or watermark is added to the result. You get a clean scan you can submit or store as-is.

Does it detect the document corners automatically? ⌄

Yes. It analyzes the boundary between the background and the document to find the four corners automatically. If lighting or background throws it off, you can drag the corners yourself, and a magnifier appears to make it easy to line up exactly.

Can I make a black-and-white document look sharper? ⌄

Yes. You can choose color, gray, or black-and-white mode, so processing a text-heavy document in black-and-white removes background speckle and makes the letters crisper.

Can I bundle several pages into one PDF? ⌄

Yes. Upload several photos and they become the pages of one PDF in the order you added them. If you need to sign after scanning, you can continue straight into the “Fill & Sign PDF” tool.