Docs tower · floor

Signature generator: what actually counts

A signature generator solves the easy half of this problem in about thirty seconds. The hard half — whether the resulting mark counts for anything — is decided by law rather than by software, and almost no tool on the first page of results mentions it.

Both halves matter, and they matter in different situations. Returning a delivery form and signing a lease are not the same act, even though the gesture on screen is identical.

Simple

A simple electronic signature

The broadest level. eIDAS defines an electronic signature as “data in electronic form which is attached to or logically associated with other data in electronic form and which is used by the signatory to sign”. A typed name or a drawn scribble can qualify.

Advanced

An advanced electronic signature

Must be uniquely linked to and capable of identifying the signatory, created so the signatory retains control, and linked to the document so that any later change is detectable. The Commission is explicit that this is still not equivalent to a handwritten signature.

Qualified

A qualified electronic signature

The only level the European Commission says is “explicitly recognized to have the equivalent legal effect of hand-written signatures throughout the EU”. It needs a qualified certificate from a trust service provider — which is why it is not what a free signature tool produces.

The searches divide along exactly that line. Signature generator, signature maker and handwritten signature generator are people who want an image. How to sign a pdf and e sign pdf are people with a document open right now. Electronic signature, esignature and digital signature are the legal words, and the last of those means something quite different from the other two. Free electronic signature and sign a document online come from somebody who has just met a paywall.

That ladder is the European framework, quoted from the Commission that publishes it. Other jurisdictions organise it differently, but the shape recurs: at the bottom, almost any mark you intend as a signature; at the top, a certificate issued to a verified person. Free tools live at the bottom, and for most everyday documents that is entirely sufficient.

Where to start

Five ways in.

“I need to sign this and send it back today.”
Start at signing it yourself
“I need a signature image I can reuse.”
That is making a signature
“Does this actually count legally?”
Go to whether it counts
“I need somebody else to sign.”
That is getting others to sign
“It is a contract, not a form.”
Read whether it counts

Signing it yourself

Free, offline, already installed. For the overwhelming majority of documents people sign, this wing is the whole answer.

How to sign a pdf on a MacPreview captures a signature from the trackpad, the built-in camera, or an iPhone, and stores it for reuse.Being built
On WindowsWhat Edge can do with ink, and the free routes when a form needs more than a drawn mark.Being built
On a phoneSigning with a finger and returning the document without ever opening a computer.Being built
E sign pdf without an accountGetting it done when the site in front of you wants a sign-up first.Being built
Print, sign, scan — and why not toThe old ritual, what it costs in quality, and the rare cases where it is still required.Being built

Making a signature

The image itself. This wing is short, practical, and includes the part people should think about before uploading a picture of their own name.

Signature maker toolsWhat they produce, what they keep, and why a signature is an unusually sensitive thing to upload.Being built
Handwritten signature generatorTurning a real pen stroke into a clean transparent image, without a website.Being built
Making it look rightBackground, contrast and size — the three things that make a pasted signature look scanned rather than stuck on.Being built
Where to store itKeeping a reusable signature file somewhere that is not a shared folder.Being built

Whether it counts

The half that decides whether any of this was worth doing. Every claim in this wing names the law or the authority it comes from.

The three levelsSimple, advanced and qualified, and what each one requires — quoted from the European Commission.Being built
Digital signature is not the same thingA cryptographic certificate versus a picture of your name. Microsoft Edge can “view and validate certificate digital signatures in PDFs”.Being built
When a scribble is enoughThe everyday documents where a simple electronic signature is normal and accepted.Being built
When it is notProperty, wills, some employment and financial documents — and why to ask before signing on screen.Being built
Outside the EUHow other jurisdictions frame the same question, and where to look up yours.Being built

Getting others to sign

Sending a document out for signature is a different job from signing one, with different tools and a different trail.

Sending for signatureThe free and paid routes, and what each records about who signed and when.Being built
The audit trailWhat proves a signature happened, which matters far more than the image itself.Being built
Several signatoriesGetting a document round four people without ending up with four versions.Being built
Free electronic signature servicesWhere the free tiers stop — usually at the number of documents per month.Being built

What this tower will not do

It will not tell you a signature is legally valid. That depends on the document, the jurisdiction and sometimes on the parties, and no web page can answer it for your case. What this floor does is name the framework and quote it, so you know which question to ask and who to ask.

It will not rank the signature services yet. That verdict needs real documents sent to real people, and an account of what the trail looked like afterwards.

And it will not encourage anybody to upload an image of their own signature to a free website. It is one of the few pieces of personal data that is genuinely reusable by somebody else, and the offline routes on the first wing exist precisely so that you do not have to. What holds instead is simple: the legal ladder here is quoted from the European Commission, not summarised from memory.

Where this page got its facts

  1. European Commission on eSignature — the eIDAS definition, the three levels, the advanced requirements and the legal effect of a qualified signature — ec.europa.eu, read 21 August 2026.
  2. Apple on filling out and signing PDF forms in Preview, including capturing a signature — support.apple.com, read 21 August 2026.
  3. Microsoft on viewing and validating certificate-based digital signatures in Edge — learn.microsoft.com, read 21 August 2026.

Written by Alberto Gulotta

Founder and editor of AI Tools Primer, writing from Palermo, Italy. Thirty-five years of taking computers apart, starting with a Commodore 64 — the long version is on the about page.

Something wrong on this page? Write to aitoolsprimer@gmail.com and it gets fixed.

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