Send a document for someone to sign, online and for free

You need a client, an employee or a family to sign a document and you don't want to print, scan or chase anyone. Here's how to do it in two minutes.

MultiDocs team2 min readUpdated 29 October 2026With official sources

In 30 seconds

Upload the PDF, mark where each person signs and send it by email or WhatsApp.
The signer doesn't sign up: they open the link, fill in what you ask and sign with their finger.
You get the signed document with a proof of every signature.

How to send it

Upload the document at Sign for free (PDF or photo) and choose "Someone else".
Tap "Signature" and drag the box to where they need to sign. If you need details, add "Name", "ID number", "Date" or an "I agree" tick box.
Several people signing? Tap "+ Add person". They can sign at the same time or in order.
Enter their email or mobile number and send it. With WhatsApp or SMS, your phone opens with the message ready.
It arrives signed in your inbox, with a proof showing the date, time and details of each signer. If someone is slow, we send them reminders.

Official figures

94.8%

of people aged 16 to 74 in Spain use instant messaging such as WhatsApp.

Art. 25

of the European eIDAS regulation: a signature cannot be denied validity just because it is electronic.

Source: EUR-Lex

You get 20 free requests a month. If you need more, the business plan costs €19 a month with unlimited users and up to 1,000 requests.

Is it free to send a document for signature?

Yes, you get 20 free requests a month, with no sign-up and no watermarks.

Does the other person need an account?

No. They get a link by email, WhatsApp or SMS, and sign in their phone's browser.

Can I send it to several people?

Yes, up to five on the same document, at the same time or in order.

We checked each source on 29 October 2026. If you spot an out-of-date figure, write to us at info@multidocs.es.