How to Create an Electronic Signature (Free)

Most people search for this at an awkward moment: a contract landed in your inbox, it needs signing today, and you don't own a printer — let alone a scanner. The good news is you don't need either, and you don't need a paid account with anyone.

You can draw a signature in your browser and download it as an image in about thirty seconds using the free FileNaut Signature Generator. If the thing you actually need to sign is a PDF, you can skip the image step entirely and go straight to Sign a PDF, which lets you type, draw, or upload a signature and drop it directly onto the page. Both run entirely inside your browser — your signature is never uploaded to a server, which matters more here than it does for almost any other file you handle.

This guide covers how to make the signature, which of the two tools to use for your situation, how to get it onto a PDF or Word document, and the part most guides quietly skip: what actually makes an electronic signature legally binding, and when an image of your handwriting isn't enough.

These three terms get used interchangeably, and they are not the same thing. The confusion matters, because it decides which tool you need.

A drawn signature PNG is an electronic signature. It's a picture of your handwriting — it carries no cryptography, no identity verification, and no tamper detection. That sounds like a weakness, but for ordinary agreements it isn't: electronic signatures are legally recognised across the US, EU, UK, Canada and Australia, and a picture of your signature is one perfectly valid way to make one. More on the legal side below.

The one thing to take from this table: if someone has specifically asked you for a digital signature or a certificate-based signature, an image will not satisfy that request, and no free browser tool will. Skip to the section on when an image isn't enough.

Here's the fastest route to a reusable signature image.

1. Open the Signature Generator. Nothing to install, no account to create. The signature pad appears immediately.
2. Set your pen before you draw. There are three controls beneath the pad: Pen Color, Background Color, and a Pen Width slider from 1 to 10. Set these first — changing the background colour after you've drawn will clear the pad and you'll have to start again.
3. Draw your signature. Click and drag with a mouse, or use your finger or a stylus on a touchscreen. A single tap places a dot, so you can add the dot on an "i" or a full stop cleanly.
4. Not happy? Hit Clear and go again. There's no undo — Clear wipes the whole pad. Expect three or four attempts; almost nobody nails a mouse-drawn signature first try.
5. Click Download Signature. The button stays greyed out until you've drawn something, then saves a PNG named signature.png to your downloads folder.
6. Store it somewhere sensible. A private folder, not your desktop and not a shared drive. It's a reusable image of your signature — treat it like a spare key.

The entire process runs on your device. The canvas is drawn locally and exported locally; nothing is transmitted, so there's no copy of your signature sitting on someone else's server.

FileNaut has two ways to sign, and picking the right one saves you a lot of fiddling. They're built for different jobs.

Short version: signing a PDF → Sign a PDF. Making a signature file to keep → Signature Generator.

A mouse is a terrible pen. These are the tricks that close most of the gap.

• Use a touchscreen or trackpad if you have one. A finger on a phone beats a mouse every time; a stylus beats everything. If you're on a laptop, drawing on the trackpad with one finger is usually smoother than a mouse.
• Draw big, then scale down. Use the full width of the pad. Shrinking a large signature hides wobble; enlarging a small one magnifies it. Whatever you place it on later will let you resize.
• Go fast, not carefully. Slow, deliberate drawing produces a shaky line that reads as fake. One quick confident sweep looks far more like a real signature, even if it's messier.
• Pen width 2–4 for most uses. 1 disappears when the image is scaled down into a document. Above 5 turns a normal-sized signature into a marker scrawl. If you're signing something that'll be printed, lean towards 3–4.
• Simplify. Nobody's everyday signature is their full legal name in perfect cursive. An initial, a surname, and a flourish is normal and completely acceptable.
• Use near-black, not pure black, for realism. A very dark blue (#1a1a5e) or dark grey reads like a real pen far more than #000000. Blue ink also signals "this was signed" rather than "this was printed" — a genuine convention on paper contracts.
• Or don't draw at all. Sign a blank sheet of paper with a real pen, photograph it in good light, and use that image instead. It will always look more authentic than anything drawn with a mouse. You can compress the photo first if it's large.

This is the single most common frustration with signature images, so it's worth being direct about it.

The Signature Generator's exported PNG includes its background colour — white by default. That means when you place it over a signature line in a document, you get a white rectangle sitting on top of the page, which can cover the line or any text behind it. On a plain white page nobody notices. On a form with a printed rule beneath the signature field, or a page with a coloured background or a border, it's obvious.

Three ways around it:

1. Match the background to the document. Before you draw, set Background Color to the same colour as the page you're placing it on. For most documents that's already white and you're done.
2. Use Sign a PDF instead when the target is a PDF. Its built-in signature pad places your signature on the page without painting a background box behind it — which is exactly why it's the better choice for signing documents.
3. Remove the background afterwards in any image editor that supports transparency, then save as PNG. Don't save as JPG at this step — JPG has no transparency channel, so it will re-add a white background.

One trap to avoid: don't set the background colour after you've drawn. Changing it resets the pad and clears your signature. Set it first.

Once you have signature.png, placing it depends on the destination.

1. Into a PDF: open Sign a PDF, load your document, choose Upload, select your PNG, and drag it into position. Resize with the handles. Download the signed file. Full walkthrough in our guide to signing a PDF.
2. Into Word or Google Docs: Insert → Picture → choose the file. Set text wrapping to "In front of text" (Word) or "Wrap text" (Docs) so you can drag it exactly onto the signature line, then drag a corner to size it.
3. Into an email signature: most clients let you insert an image into the signature block. Keep it small — under about 300px wide and ideally under 50KB, or it'll show as an attachment in some clients. Compress it if needed.
4. Into a document you then need as a PDF: sign the document first, then convert. Image to PDF handles image files, and if you end up with several signed pages, merge them into one file before sending.

In most cases, yes — and this has been settled law for over two decades. (General information, not legal advice. For anything high-value or unusual, ask a lawyer in your jurisdiction.)

• United States: the federal ESIGN Act (2000) and the state-level UETA give electronic signatures the same legal effect as handwritten ones. UETA has been adopted by 49 states; New York uses its own equivalent, the Electronic Signatures and Records Act.
• European Union: the eIDAS Regulation recognises three tiers — simple, advanced, and qualified. A drawn signature image is a simple electronic signature. It's admissible as evidence and can't be rejected in court purely for being electronic, but only a qualified signature automatically carries the same legal weight as a handwritten one across all member states.
• United Kingdom: recognised under the Electronic Communications Act 2000, with the Law Commission confirming in 2019 that electronic signatures are valid for most documents.

Here's the part that surprises people: what makes a signature hold up is rarely the signature itself. If an agreement is challenged, what matters is whether you can show intent to sign, that both parties agreed to do business electronically, that the signature can be attributed to you, and that the record was retained unaltered. A beautiful cursive PNG with none of that behind it is weaker evidence than a plainly typed name with a timestamped audit trail. That is precisely what services like DocuSign sell — not prettier signatures, but the evidence package around them.

Common exclusions. ESIGN specifically carves out several categories, and similar exceptions exist elsewhere: wills, codicils and testamentary trusts; adoption, divorce and other family law matters; court orders and official notices; most of the Uniform Commercial Code; notices of utility disconnection, eviction, foreclosure or repossession of a primary residence; cancellation of health or life insurance benefits; product recall notices; and documents accompanying the transport of hazardous materials. These generally still require paper.

Be honest with yourself about the stakes. Use a certificate-based digital signature or a dedicated e-signature platform when:

• The other party has explicitly asked for a digital or certificate-based signature, or for a qualified electronic signature under eIDAS.
• You need a verifiable audit trail — who signed, when, from which IP address, with email verification.
• The document must be tamper-evident, so any later alteration invalidates the signature.
• It's a regulated filing, a property transfer, or a high-value commercial agreement.
• It requires notarisation or witnessing.

For everything else — a freelance contract, an NDA, a consent form, a rental application, an invoice approval, a school permission slip — a drawn signature on the document is normal, accepted, and what the overwhelming majority of people actually use.

If you're signing business paperwork regularly, it's worth pairing this with an invoice and receipt workflow so the whole chain stays in one place.

A signature image is reusable by anyone who has it. Some sensible habits:

• Never upload it to a tool that sends files to a server. Plenty of free "signature makers" process server-side, which means your signature ends up on infrastructure you don't control, under a privacy policy you didn't read. FileNaut's tools run entirely in your browser — the file never leaves your device.
• Don't email the bare PNG. Send the signed document, not the reusable signature.
• Keep it out of shared and synced folders — shared Drive folders, team Dropboxes, public repos.
• Consider a slight variation for different purposes so an image lifted from one document isn't a pixel-perfect match for another.
• Flatten where you can. Once signed, exporting a flattened PDF makes the signature marginally harder to lift back out as a clean image.