Sign PDFs Online
With Ease
Sign PDF documents in a few simple steps with Lumr. Upload your file, insert your signature, and download your signed PDF, all online from your browser.
or drop your files here
Max file size 100 MB
- No signup needed
- Private & encrypted
- 256-bit SSL
- AES-256 encrypted
- SOC 2 Type II
How To Sign a PDF Online in 3 Easy Steps
Upload your PDF
Choose the PDF you want to sign from your files or just drag and drop it into the upload area.
Add your signature to the PDF
Simply draw your signature, type your name and choose from our signature fonts, or upload a picture of your signature.
Download your signed PDF
Place your signature wherever you want, and instantly download your signed PDF. The whole process takes just a couple of minutes.
Add a Signature to PDF Documents
From Your Browser
With Lumr, you can sign PDF files online from your browser with zero friction. No printer. No scanner. No complicated steps.
PDF signing online
Ready in a couple of minutes
Instantly sign your document online and keep your workflow moving.
Works on any browser
Your signature, your way
Add your signature to a PDF from any browser, including Chrome, Safari, Opera, and more.
Simple placement tools
Place it anywhere
Insert your signature in PDF pages exactly where it needs to appear.
Works on any device
Sign from anywhere, anytime
Use Lumr on desktop, tablet, Android, or iPhone.
No software installation
Do everything from your browser
Sign PDF documents directly online. No need to download any extra apps.
Built with privacy in mind
100% private
We use industry-standard encryption to keep your documents private at all times.
Trusted Every Day for Signing PDFs Online
Our users trust us to help them sign PDFs, hassle-free.
“Signing contracts used to take days with printing and scanning. Now I sign and send in under a minute. Game changer.”
Sarah M.
Marketing Manager
“I sign NDAs and project agreements from my phone between meetings. No printing, no scanning, just tap and done.”
James K.
Freelance Designer
“I fill and sign contracts on my phone between showings. No printing, no scanning, just upload and done.”
Ana L.
Real Estate Agent
FAQs About Adding Signatures to PDFs
Everything you need to know about signing PDFs online.
Is it secure to sign a PDF on Lumr?
Yes. Lumr processes your files 100% securely. Your documents remain private throughout the entire process, and we do not keep any copies of your files.
Can I sign a PDF online on my Android or iPhone?
Yes. Lumr works in your browser, so you can sign PDF documents online from any device with a browser, including iPhones and Androids.
Do I need to install software to sign PDF documents?
No, you do not need to install software or apps to use Lumr’s online PDF signer tool. You can add a signature to PDF files directly from your browser.
Can I add multiple signatures to the same PDF?
Yes, you can add a signature as many times as you like to any PDF document with Lumr. This is useful for signing forms or contracts.
How to sign a PDF on different browsers?
The signing process is the same no matter your browser:
- Open Lumr in your preferred browser
- Upload your PDF
- Add your signature
- Place it on the document
- Download the signed file
Lumr works with Chrome, Safari, Opera, and more.
What types of signatures are supported to sign PDFs on Lumr?
Lumr offers multiple signing options:
- You can draw your signature with your mouse or touch screen
- Type your name and choose a generated signature style
- Upload an image of your handwritten signature
All three of these methods produce signatures that are completely legally valid.
Security you can trust
Independently audited and compliant with the security and privacy standards your documents demand.
- SOC 2 Type II
- GDPR
- ISO 27001
- HIPAA
- eIDAS
- PCI DSS
Ready to sign your PDF?
Join millions of users who trust lumr for fast, secure PDF signing. No fees, no hassle.
- Ready in 3 seconds
- 256-bit SSL secure
- Works on any device