Key takeaways
- Draw, type or upload your signature and place it anywhere on the page.
- Uploaded signature photos get their white background removed automatically.
- Add the date, your name or initials as text next to the signature.
- Signing happens on your device — the contract is never uploaded.
Printing a contract just to sign it and scan it back is a waste of paper and time. You can sign a PDF directly on your phone or computer in under a minute.
Three ways to create your signature
- Draw it with your mouse, trackpad or finger. Smoothing makes it look natural. Choose blue, black or red ink.
- Type your name and pick one of four handwriting fonts.
- Upload a photo of your signature on white paper — the white background is removed automatically.
How to sign a PDF
- Open Sign PDF and add the document.
- Create your signature (draw, type or upload).
- Click the page where it should go and drag to position, then resize.
- Use Date to stamp today's date and Text to add your printed name if needed.
- Download the signed PDF.
Initials on every page
Some contracts ask for initials on each page. Choose the Initials tool, create your initials once, then click on every page where they're needed.
Filling in forms
Need to fill in blanks too? Use Edit PDF to add text, check marks and dates, then sign. See add text and images to a PDF.
Sending the signed document
- Email it directly, or
- Protect it with a password if it contains personal data, or
- Merge it with annexes so the recipient gets one complete file.
Is it legally valid?
A signature image on a PDF is a simple electronic signature. Many countries accept it for everyday agreements like rental forms, purchase orders or consent forms. Some documents — notarial deeds, certain government filings — require a qualified digital signature or a handwritten signature on paper. When in doubt, ask the other party or a lawyer.
Privacy
Contracts contain names, addresses and amounts. Osd-Scan adds signatures inside your browser, so neither the document nor your signature image is uploaded anywhere.
Frequently asked questions
Is a signature added this way legally valid?
Simple electronic signatures are accepted for many everyday agreements in many countries, but some documents require qualified digital signatures or wet ink. Check what the other party or the law requires.
Can I sign on my phone?
Yes. Draw your signature with your finger in the browser or the Osd-Scan app.
Can I sign multiple pages?
Yes. Place the signature or initials on every page that needs it.
Is this the same as a digital certificate signature?
No. It places a visual signature on the page. Certificate-based digital signatures are a different, cryptographic process.