Sign PDF
Add your handwritten signature. Visual signature only — for qualified eIDAS signatures use Reader Desktop.
Process: application/pdf
Process ≤ 50.0 MB
About this tool
Add your handwritten signature. Visual signature only — for qualified eIDAS signatures use Reader Desktop.
All processing happens in your browser. Your PDF never uploads to our servers. No account required, no usage limits.
Frequently asked questions
Is this PDF signing tool free?
Yes, completely free.
Is this signature legally binding?
It is a Simple Electronic Signature (SES) under eIDAS. Useful for casual agreements. For qualified signatures (QES, equivalent to handwritten in the EU), use Reader Desktop with your FNMT/DNIe certificate.
Will my PDF be uploaded to a server?
No. Signature embedding happens entirely in your browser.
Can I draw my signature with a touchscreen?
Yes. The signature pad accepts mouse, trackpad, finger, and stylus input.
Does it work offline?
Yes, after the first visit.