How to sign a PDF free and without sign-up on mobile or PC

Signing a contract, a consent form or an application no longer means printing, signing by hand and scanning. Today you can sign a PDF right from your browser, for free and with no account. In this guide we show you how to do it in under a minute, on both mobile and desktop, and why it is a safe option for your documents.

Why sign a PDF online instead of printing

• Saves time: no printer or scanner needed.
• Greener: zero paper and zero ink.
• Looks more professional: the signature blends cleanly into the document.
• You can do it anywhere, even from your phone.

How to sign a PDF step by step

1. 1Open the signing tool and upload your PDF (it is never sent to a server).
2. 2Draw your signature with your finger on mobile or with the mouse on desktop.
3. 3Place the signature exactly where you need it and resize it if necessary.
4. 4Download the signed PDF, ready to send by email or WhatsApp.

Is it safe to sign documents online?

It depends on the tool. On Ramix, the whole process happens inside your browser: the PDF is never uploaded to any server, so your data never travels across the internet or gets stored anywhere. This matters a lot when you sign documents with personal information, such as rental contracts, school consent forms or official applications.

Handwritten signature vs. advanced electronic signature

For most everyday paperwork (consent forms, agreements between individuals, internal forms) a handwritten signature drawn on the PDF is enough and valid. For procedures that require a qualified electronic signature with a digital certificate (for example, certain government processes), you will need a dedicated qualified-signature platform. Our tool perfectly covers the first case, which is by far the most common.