Print, sign, scan, email — the old way wastes paper, needs a printer and scanner you may not have, and leaves you with a crooked, grey scan of your own document. You can skip all of it. Signing a PDF entirely on screen takes under a minute and gives the recipient a clean, legible signed file instead of a photo of one.

Three ways to create your signature

The tool lets you make a signature in whichever way suits your device:

• Draw it with a mouse, trackpad, or finger on a touchscreen — easiest on a phone or tablet.
• Type your name and let the tool render it in a signature-style font.
• Upload a PNG of your real signature (a photo of your signature on white paper, with the background removed, works well).

Sign a PDF in four steps

1. Open the Sign PDF tool and upload the document.
2. Create your signature by drawing, typing, or uploading a PNG.
3. Place it on the right line or box, and resize it to fit; copy it if you need to sign in several spots.
4. Download the signed PDF and share only that signed version.

Is an online signature legally valid?

For most everyday purposes, yes. An electronic signature — an image of your signature placed on a document, together with your intent to sign — is widely accepted for routine agreements, HR forms, offer letters, rental documents, and internal approvals, and is recognised under the IT Act in India for many use cases.

However, it is not the same as a certificate-based digital signature (DSC), which is cryptographically tied to your verified identity. Certain filings legally require a DSC — for example, some GST, MCA/ROC, and income-tax submissions. For those, use a licensed DSC token from a certifying authority rather than a drawn signature.

Filling a form instead of signing?

If you need to type into form fields, tick checkboxes, or choose from dropdowns on a standard form — not just add a signature — use the Fill PDF form tool. It lets you complete the whole form on screen, with no printing required there either.

Tips for a clean, professional signature

A sloppy signature undermines an otherwise tidy document. A few things help:

• If you upload a signature image, sign in dark ink on plain white paper and crop tightly.
• Use a PNG with a transparent background so there is no white box around your signature.
• Keep the signature proportionate — resize it to sit neatly on the line, not overflow it.
• Place it precisely over the signature line rather than floating above or below it.

Once it looks right, copy the same signature to any other spots that need it so every instance matches.

Frequently asked questions

Can I sign on my phone?

Yes. Signing runs in your mobile browser, and drawing a signature with your finger on a touchscreen is often easier than with a mouse.

Can I add my initials or a date as well?

Yes. Place a typed text element for the date or your initials alongside your signature before you download the signed copy.

Can the other party edit my signature afterwards?

The signature is flattened into the downloaded PDF, so it is not a movable object in the file you share. Keep the unsigned original for yourself.

Is signing a PDF online free?

Yes — adding a signature and downloading the signed copy is free, with no watermark placed on your document for a standard signing.

Signing happens in your browser, so routine agreements stay off random "free sign" sites. Keep the unsigned original in case you need to sign a fresh copy later.