How to Sign a PDF Online Free

How to Sign a PDF Online Free

Sign a PDF online free whenever a form, contract, or application asks for your signature and you do not have a printer, a scanner, or a paid app. Signing on paper, scanning it back, and emailing it takes far too long — and most of "free" signing websites upload your document to their server or demand an account before they let you download. There is a faster, private way: draw, type, or upload your signature, place it exactly where it belongs, and download the signed PDF in minutes.

Our free PDF signer does the whole job inside your browser. Your PDF and your signature never leave your device, there is no signup, no watermark, and no limit on how many documents you sign. You only ever need your own signature — never sign a document you are not authorised to sign, and never use someone else's signature.

Three Ways to Create Your Signature

Draw it. Use your mouse, finger, or stylus on the drawing pad, exactly as you would sign on paper. If a stroke goes wrong, clear the pad and try again. The tool trims the empty space around your signature automatically, so only the signature itself lands on the page.

Type it. Type your full name and pick a handwriting style and ink colour — classic black or traditional signature blue. Typed signatures are a good choice when your mouse handwriting looks shaky, and they stay perfectly consistent across every document you sign.

Upload a photo. Photograph or scan your signature on plain white paper, then upload it. The tool can remove the white paper background, turning your photo into a clean transparent signature that sits on the PDF without a white box around it. If thin strokes fade, lower the background threshold; if paper specks remain, raise it.

Whichever method you choose, press "Use this signature" and check the preview before you continue. A signature that looks right in the preview will look right on the page.

How to Sign a PDF in 4 Steps

Step 1: Open the PDF signer and choose your PDF file — or drag and drop it onto the page. The tool reads the document and tells you how many pages it has, so you always know which page numbers are valid.

Step 2: Create your signature by drawing, typing, or uploading, then press "Use this signature" and confirm the preview looks like your real signature.

Step 3: Add a placement: choose the page number, where on the page the signature goes (bottom right is the usual spot for a signature line, but top corners and bottom centre are there too), and how wide it should be in millimetres — 60 mm suits most forms. You can add several placements at once, for example one on the last page and one on an annexure page, and remove any placement with a click.

Step 4: Click "Sign PDF & Download". The tool embeds your signature image into the PDF at exactly the positions you chose and gives you a signed copy to download. Your original PDF is never changed, so you can always start again from a clean copy.

Where Should a Signature Go on a PDF?

Most forms and contracts put the signature line at the bottom of the last page — that is why the tool defaults to the last page and the bottom right corner. Letters and certificates often expect the signature at the bottom right too, while official applications sometimes reserve the bottom left for the applicant and the bottom right for an attesting officer. If a document has a printed signature box, match its corner: a signature placed over printed text looks careless, while one sitting neatly in its box looks professional. When in doubt, keep the signature modest — 50 to 70 mm wide — and leave a small margin from the page edge, which the tool does automatically.

For multi-page documents, sign only the pages that ask for it. Adding your signature to every page of a long contract is rarely required and can look odd; the tool's placement list lets you pick exactly the pages that need signing and nothing else.

Why Sign in Your Browser Instead of Uploading?

A signed document is one of the most sensitive files you own. Uploading it to a signing website means your contract, your ID copy, or your application passes through a server you do not control, and free tiers often keep the file, add a watermark, or limit you to a few documents a month. Signing in your browser avoids all of that: the PDF is read on your own device, the signature image is embedded locally, and the signed file is generated on your device. There is no upload wait for large documents, no account to create, and nothing to delete afterwards because nothing ever left your computer or phone.

The same privacy logic applies to your signature image itself. A signature uploaded to a server could be stored, reused, or exposed in a breach. Kept in your browser, it exists only while the page is open, and closing the tab clears it.

Common Uses for Signing a PDF

• Signing job application forms, offer letters, and declarations without a printer
• Returning a signed rental agreement, admission form, or school undertaking
• Signing invoices, quotations, and receipts for a small business
• Adding your signature to a certificate, letter, or affidavit before submission
• Signing each required page of a multi-page contract or annexure
• Preparing a signed copy on your phone while travelling, with no scanner nearby

Tips for a Professional-Looking Signature

First, sign with a dark pen on plain white paper if you upload a photo — ruled paper and shadows make background removal harder. Second, keep the signature at a realistic size: an enormous signature across half the page looks far less credible than a normal one on the line. Third, if the document already has a printed signature line, align your placement to that corner rather than floating in the middle of the page. Fourth, always open the downloaded PDF and check every signed page before sending it — zoom in, confirm the signature sits on the line, and confirm no page was missed. And if you need to prepare the document first, our Merge PDF tool combines pages, our Split PDF tool extracts just the pages you need, and our JPG to PDF converter turns scanned photos into a PDF you can then sign — all private and free.

Frequently Asked Questions

Is signing a PDF online free?
Yes — completely free, with no signup, no watermark, and no limit on the number of documents you sign.

Are my PDF and signature uploaded anywhere?
No. Signing happens entirely in your browser. Your files never touch a server, and closing the tab clears your signature.

Can I sign more than one page?
Yes. Add a placement for each page that needs a signature, each with its own position and size, then sign once and download one signed PDF.

What if my PDF is password-protected?
Password-protected PDFs cannot be signed by the tool. Remove the password in your PDF reader first (if you are authorised to do so), then sign the unlocked copy.

Will the signature look like my real signature?
A drawn or uploaded signature is your own handwriting, so yes. A typed signature uses a handwriting-style font instead — neat and consistent, but visibly typed rather than handwritten.

Does it work on mobile?
Yes. Draw with your finger on the pad, or upload a photo of your signature, right in your phone's browser. Larger PDFs sign faster on a computer, but everyday forms work fine on a phone.

Is a digital signature on a PDF legally valid?
That depends on the document and your country's rules — many everyday forms, applications, and business documents accept a signature image, while some legal or government filings require a certified digital signature. When in doubt, check what the receiving office accepts before you submit.

Try it now: Sign PDF Online Free — Draw, Type or Upload Your Signature, No Upload

Also try: Merge PDF, Split PDF, and PDF to JPG Converter — all free, all private.