How to Sign a PDF Without Adobe (Free, No Account)

Someone has sent you a contract as a PDF and asked you to “sign and return it”. You open it, and your PDF viewer offers to sell you a subscription. This is one of the most common paid-software traps there is, because for the overwhelming majority of documents you do not need Acrobat at all.

Here are the three realistic options, from best to worst.

Option 1: Draw your signature in the browser (recommended)

This is the fastest route and produces the cleanest result.

Open the PDF editor and drop your document in.
Click the signature tool in the toolbar.
Draw your signature with your mouse, trackpad, or — much easier — your finger on a phone or tablet.
Place it on the page and drag the corner handle to size it correctly.
Click Export PDF and download the signed copy.

The whole process happens inside your browser. Your contract and your signature are never uploaded to a server, which matters more here than with most PDF tasks: a signature is personal data, and the documents you sign tend to be the private ones.

Tip: drawing on a trackpad looks shaky. If the result looks wrong, sign on your phone instead — open the same page there, draw with your finger, and the result is noticeably more natural.

Option 2: Insert a photo of your handwritten signature

If you want your signature to look exactly like it does on paper:

Sign a blank white sheet with a dark pen, and photograph it in good light.
Crop it tightly to the signature.
In the PDF editor, use the image tool to place the photo on the signature line and resize it.

For the cleanest look, use a PNG with a transparent background if you have one. A tightly cropped photo on a white document works fine too, since the paper and the page are both white.

Option 3: Print, sign, scan (avoid if you can)

The traditional route: print the document, sign it, scan it back. It works, and for some authorities it is still what they expect. But it costs you a printer, a scanner, and about ten minutes — and it usually produces a large, slightly crooked file that you then have to compress before you can email it.

Use this only when the recipient explicitly demands a scanned wet-ink signature.

Is a drawn signature legally valid?

This is the question that actually matters, and the honest answer has two parts.

For everyday business, usually yes. In both the EU (eIDAS) and the US (ESIGN, UETA), a signature is not required to be handwritten to be binding. A drawn or typed signature counts as a simple electronic signature, and for the vast majority of agreements — freelance contracts, rental agreements, consent forms, internal approvals, NDAs — that is legally sufficient. In practice, if the recipient would have accepted a scanned signature, they will accept this.

For a specific class of documents, no. Certain transactions require a qualified electronic signature (QES), which involves identity verification through a certified trust service provider. Depending on the country this can include property transfers, certain notarial acts, some employment terminations, and specific filings with public authorities. A drawn image cannot satisfy that requirement, and no free browser tool can — it needs a certified provider.

The practical rule: if someone emails you a PDF and asks you to sign and send it back, a drawn signature is what they mean. If a law, a notary, or a government form explicitly requires a “qualified electronic signature”, you need a certified service. When money or property is at stake and you are unsure, ask the other side which they require — it is a one-line email that saves a great deal of trouble.

This is general information, not legal advice.

Filling in the rest of the form

Signing is rarely the only thing you need to do. A contract usually also wants your name, the date, a place, and sometimes a checkbox or two. The same editor handles all of it:

Text tool — click anywhere and type. Works on both interactive form fields and flat scanned forms.
Edit existing text — click a line that is already in the document to correct a typo or change a date.
Whiteout — cover something that needs to be removed, then write the correction on top.

After signing: making the file sendable

Signed contracts often need to go back by email, and scanned documents can easily exceed an attachment limit. If yours is too large, run it through Compress PDF afterwards — under 1 MB is a safe target for virtually any mail server.

If you need to combine the signed page with other documents into a single file, Merge PDF will do that in the right order.

Frequently asked

Do I need an account? No. There is no signup, no email address, and no watermark on the result.

Is my contract uploaded to a server? No. The editor runs entirely in your browser — you can even disconnect from the internet after the page has loaded and keep working.

Can I reuse the same signature on several documents? Yes. Save a cropped PNG of your signature once, then place it as an image whenever you need it.

Does the signature stay editable in the exported file? No. On export the signature is drawn permanently into a new copy of the PDF. Your original file is never modified.