How to Have a PDF Signed Online
5 steps to have a PDF signed online quickly and securely, without any software installation.
Certyneo Team
Writer — Certyneo · About Certyneo

A PDF Signed in Minutes
Having a PDF signed online takes less than 5 minutes with an electronic signature platform. No need for Adobe Pro, no need to print, no need to scan.
The 5 Steps
1. Choose a Platform
Select a platform compliant with eIDAS (Certyneo, Yousign, DocuSign…). A free plan is sufficient to get started.
2. Upload the PDF
Drag and drop your file into the interface. Most platforms accept:
- PDF (native format, recommended)
- Word (automatically converted)
- Images (to be avoided if possible)
3. Add Signers
Enter the name and email of each signer. For advanced signature (AES), also add the phone number (SMS OTP).
4. Place Signature Fields
Drag a "Signature" field to the desired location on the page. For multiple signers, one field per person with different colors.
5. Send
Click "Send". Each signer receives an email with a secure link. You track the status in real time.
What the Signer Receives
- an email with a unique link
- opening the PDF in the browser
- a click on "Sign"
- possibly an OTP code via SMS (for AES)
- immediate confirmation
Total time for the signer: 1-3 minutes.
Best Practices
- Review the PDF before sending (no corrections possible once signed)
- Set an expiration date (15-30 days)
- Activate automatic reminders
- Test first with a non-critical document
Common Mistakes
- Uploading a low-quality scan (illegible on mobile)
- Forgetting a signature field
- Entering a wrong email
- Sending without testing
How Certyneo Helps You
Certyneo offers sending a PDF for signature in less than 3 minutes: drag-drop the file, add signers, place fields, send. Free plan to get started, no account needed for the signer.
Discover Certyneo's electronic signature solution
FAQ
Do You Need Adobe Acrobat Pro?
No. An online platform is sufficient.
Does the Signer Need an Account?
No, just their email.
Can You Sign from a Phone?
Yes, all modern platforms are mobile-first.
How Long Does It Take to Sign?
1-3 minutes for the signer.
Is It Free?
Free plans exist (3-10 signatures/month).
Conclusion
Having a PDF signed online has become trivial. In less than 5 minutes, you send, the signer signs, you receive the signed document with legal proof.
Try Certyneo to send, sign, and track your documents online simply, quickly, and securely.
Try Certyneo for Free
Send your first signature envelope in less than 5 minutes. 5 free envelopes per month, no credit card required.
Dive Deeper
Reference articles on this topic.
Dive Deeper
Our comprehensive guides to master electronic signatures.
Continue reading about Tutorials
Deepen your knowledge with these related articles.

Electronic Signature: Integration in Outlook and Gmail
Sign your documents without leaving Outlook or Gmail thanks to native electronic signature integration. Discover best practices and solutions for 2026.

Electronic Signature and ERP Integration: The 2026 Guide
Connecting electronic signature to your ERP transforms your document flows and reduces signature delays by 70%. Discover how to integrate it effectively.

2026 Checklist to Reduce Telecom Signature Processing Times
Telecom operators lose an average of 4 to 7 days per contract due to non-optimized signature processes. Discover the 2026 checklist to transform your document workflow.