Sign PDF
Draw or add your signature and drag it into place on the document. Your file never leaves your device.
- Never leaves your device
- No limits
- No sign-up
- No watermark
Quick answer: To sign a PDF, select the file, draw your signature with your finger or mouse (or use a photo of it on white paper), drag it to the right spot on the page and click "Sign PDF". This is a simple electronic signature; for certificate-based validity, use a certificate-based digital signature service (e.g. Adobe Sign, DocuSign or a qualified e-signature).
How to do it in 3 steps
- 1Select the PDF.
- 2Draw your signature or add a photo of it.
- 3Drag it into place, adjust the size and click Sign PDF.
Why use Pronto Arquivo
Draw or use a photo
Sign with your finger on a phone or with a mouse. Or snap your signature on paper: the background is removed automatically.
Drag to position
Choose the page and place the signature exactly on the right line.
Initials on every page
Check the option and the signature goes on every page in the same spot.
Private
Your signature and document stay on your device only.
Guides
Simple e-signature vs. digital signature
A drawn signature is a simple electronic signature, accepted for many private contracts, receipts and forms. Documents for government agencies, notaries and courts often require an advanced or qualified signature backed by a digital certificate.
Sign last
Merging, compressing or editing after signing with a certificate invalidates the signature. Do those steps first.
Frequently asked questions
How do I sign a PDF on my phone?
Open this page on your phone, select the PDF, draw your signature with your finger, drag it into place and tap "Sign PDF".
Is this signature legally valid?
It's a simple electronic signature, valid for many agreements between private parties. For government agencies, use a certificate-based digital signature.
Can I sign with a digital certificate here?
Not yet. Use a certificate-based signing service or your certificate's software.
Is my signature saved?
No. It only exists while the page is open.