How do I put a signature in a PDF without printing?

Upload the PDF to BuiltSign, place a signature field and sign with your mouse, finger or a typed signature. Then download the signed PDF. No more printing and scanning.

Can I sign a PDF for free?

Yes. With the 7-day free trial you sign your first documents right away, including certificate and audit trail.

Can I have someone else sign a PDF?

Yes. Add the recipient as a signer and they receive a personal link by email or SMS. They sign in the browser, without an account or app.

Is a digitally signed PDF legally valid?

Yes. The signature complies with the eIDAS regulation and the PDF is sealed after signing. Together with the certificate and audit trail this constitutes legally valid proof.

Does it work with large PDF files?

Yes. BuiltSign accepts PDF files up to 1GB, including construction drawings, photos and extensive attachments. Nothing needs to be split.

PDF signing

Sign a PDF online, sign it yourself or collect signatures

Place a signature in your PDF online, or send the document to others to sign. No software to install, straight in the browser.

No credit card needed · eIDAS-compliant · Data in the EU

How to sign a PDF online

1
Upload your PDF
Drop your PDF into BuiltSign, up to 1GB per file. Even large documents with drawings or attachments upload without splitting.
2
Sign yourself or send a signing link
Place your own signature with mouse, finger or a typed signature. Or add signers who receive a personal link.
3
Download the signed PDF
You receive the signed PDF with a signing certificate. The document is sealed, so any later change is detectable.

PDF documents you sign online

Contracts and agreements
Quotes and order confirmations
Forms and applications
Powers of attorney
Declarations and consents
Registrations and sign-ups
Reports that require approval

Why choose BuiltSign

No software required

Everything runs in the browser. You do not need Adobe Acrobat or any other program to sign a PDF.

Up to 1GB per PDF

Heavy PDF files with drawings, photos or attachments upload without splitting or compressing.

Sign on your phone

Open the PDF on your phone and sign with your finger. Just as easy as on a computer.

Sealed with a certificate

Every signed PDF is sealed and delivered with a certificate recording who signed and when.

A PDF signed via BuiltSign carries a Standard Electronic Signature (SES) under eIDAS and is sealed after signing. The included certificate with audit trail is your legal proof.

Frequently asked questions about signing PDFs

: Upload the PDF to BuiltSign, place a signature field and sign with your mouse, finger or a typed signature. Then download the signed PDF. No more printing and scanning.
: Yes. With the 7-day free trial you sign your first documents right away, including certificate and audit trail.
: Yes. Add the recipient as a signer and they receive a personal link by email or SMS. They sign in the browser, without an account or app.
: Yes. The signature complies with the eIDAS regulation and the PDF is sealed after signing. Together with the certificate and audit trail this constitutes legally valid proof.
: Yes. BuiltSign accepts PDF files up to 1GB, including construction drawings, photos and extensive attachments. Nothing needs to be split.