How to sign a PDF online
- 1
Upload your PDF
Drop your PDF into BuiltSign (up to 1 GB per file, depending on your plan). 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 hash and timestamp make any later change demonstrable.
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
Just need to sign one PDF and send it back?
Someone sent you a document that you only need to sign? With QuickSign you do that for free and without an account: confirm your e-mail address, upload the PDF, sign and send it straight back, with a certificate page in the PDF.
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.
Recorded with a certificate
Every signed PDF gets a certificate page by default, showing who signed and when, with a verification link. BuiltSign records the document hash and requests an independent timestamp for it.
A PDF signed via BuiltSign carries a simple electronic signature (SES) under eIDAS. The certificate page, the recorded audit trail with the document hash and the timestamp support the evidence of the signing process. Certain legal acts have additional form requirements.
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 5-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.
- As a rule, yes. The signature is an electronic signature under the eIDAS regulation. Together with the certificate, the document hash and the audit trail this provides evidence of the signing process.
- Yes, depending on your plan: up to 80 MB on Pro, 250 MB on Business and 1 GB on Business Plus and Enterprise, including construction drawings, photos and extensive attachments. Nothing needs to be split.
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