How to Scan a Document with Your Phone — Make a PDF for Free, No Watermark

When you need to submit a paper document like a contract, receipt, or assignment but have no scanner, you usually just snap a photo with your phone. But a plain photo comes out tilted and shadowed, and does not look good. This guide covers how to turn a photo into a clean, straightened scan PDF. It is free, with no logo or watermark like the scanner apps add.

How to scan — 3 steps

1. Upload the photo — upload a photo of your paper document to the document scanner. Multiple pages work too.
2. Correct the edges — the four corners are detected automatically, and you can drag them by hand to fine-tune if needed (with a zoom magnifier). You can also adjust rotation and brightness.
3. Save as PDF — get the straightened result as a PDF, or as per-page images.

Tips for a good shot

• Place the document on a dark surface so it stands out from the background — edge detection works better.
• Shoot in a bright spot to avoid shadows, with the whole document inside the frame.
• For a black-and-white document, use black-and-white mode to make the text crisper.

When to use it

• Turning contracts and forms for submission into a clean PDF.
• Organizing receipts and proofs for storage or attachment.
• Scanning handwritten notes and assignments.

What to do after scanning

If the scanned PDF needs a signature, use Fill & Sign PDF; to reduce the size, Compress PDF; and to hide an ID number or similar, Redact personal information.

Frequently asked questions

Q. Does it stamp a logo like the scanner apps?
No. The result is clean, with no watermark or logo.

Q. Are my photos uploaded to a server?
They are used only temporarily for processing and nothing is kept beyond the result. Use it with confidence.

Q. Can I combine several pages into one PDF?
Yes. Upload multiple photos and they are saved as a single PDF in page order.