ISO 27001 certified e-signing software
The effortless
e-signature software
Enterprise-grade security without the enterprise price tag. Certified, legally binding electronic signatures and ready in seconds, for teams of any size.
What is an electronic signature software?
An electronic signature web software lets people sign documents digitally — so contracts, agreements, and forms get signed from anywhere, on any computer or mobile device.
Every document is protected by encryption and a complete audit trail, and electronic signatures are legally valid and enforceable for most business documents in most countries, including under the U.S. ESIGN Act and the EU’s eIDAS regulation. And when you’re ready to automate, the QuickSigner eSignature API lets you embed the same legally valid signatures directly into your own product.
What is an electronic signature?
Under U.S. federal law, an electronic signature is any electronic sound, symbol, or process attached to or logically associated with a record and executed with the intent to sign it. Every QuickSigner e-signature is a certificate-based digital signature, built on PAdES technology and Adobe Approved Trust List (AATL) certificates. That means cryptographic proof of who signed, tamper-evident protection of the document, and automatic validation when opened in Adobe.
Operational efficiency
Get agreements signed in minutes, not days. Upload your PDF or Word document, add signers, and send — no printing, scanning, or chasing signatures. QuickSigner e-signatures are legally binding and AATL-certified, backed by ISO/IEC 27001:2022 security, so even the smallest team gets enterprise-grade signing without the enterprise price tag or setup. Less paperwork, faster deals, more time to run your business.
Alternative to DocuSign
Everything you switched to e-signatures for — without the envelope caps. DocuSign’s Standard and Business Pro plans cap sending at roughly 100 envelopes per user per year, with overage fees beyond that. QuickSigner delivers legally binding, AATL-certified signatures with unlimited documents on every paid plan: free to start, unlimited plans from $48/year, and an e-Sign API from $0.30 per document. No per-seat lock-in, no surprise invoices.
Still doing envelope math? We tested 6 DocuSign alternatives side by side — see how they compare.
Legal security
Every QuickSigner document is sealed with a certificate-based digital signature and a complete audit trail. QuickSigner e-signatures are backed by Adobe Approved Trust List (AATL) certificate authorities, so they validate automatically in Adobe Reader, and the platform is built on ISO/IEC 27001 security standards. Any change made after signing is instantly detectable — and if a document is ever challenged, you have verifiable, time-stamped proof of who signed what, and when.
Contract templates
Send the same document twice? Make it a template. Turn any contract, NDA, or form you use regularly into a reusable template — with signature, date, and text fields already placed, and recipient roles ready to fill in. Next time, you skip the setup entirely: pick the template, add the signer’s email, and send. What took ten minutes of dragging fields now takes thirty seconds, and every agreement goes out consistent, complete, and error-free.
Mobile experience
Sign and send from any device — Android, iPhone, iPad, or laptop. QuickSigner runs in the browser, so there’s nothing to install: your signers just tap the link and sign, whether they’re at a desk or in the field. Same full features, same security, every screen size. Business doesn’t pause when you step away from your desk.
Privacy and security
Your documents are protected at every stage. QuickSigner encrypts data with TLS 1.3 in transit and AES-256 at rest, runs on ISO/IEC 27001:2022-certified infrastructure, and is built to meet GDPR requirements. Role-based access controls ensure only authorized people can view each document, and a complete audit trail records every action — from upload to archive.
How to e-sign a document in 4 steps
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1
Upload your document
Upload a PDF or Word file: your contract, NDA, invoice or any document that needs e-signing.
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2
Add signers and fields
Enter each signer's e-mail and drop signature, date or text fields exactly where they're needed.
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3
Signers get a secure link
Each signer receives a secure link by e-mail and signs from any device, with no account required.
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4
Track and finalize
Follow progress in real time. The moment everyone signs, you all get the legally binding, AATL-sealed document.
Pricing
Personal
E-sign free
Free for occasional e-signing
Business
$5 / month
per user
14-day free trial
-20% with yearly payment ($48)
For small teams that e-sign every week
Professional
$15 / month
per user
14-day free trial
-20% with yearly payment ($144)
For higher volume and integrations
All options from the Business Plan, plus:
then US $0.30 per document
Need a tailored e-signing solution?
Built around your volume, integrations and approval flows.
Tell us what you needLegally binding e‑signatures
Recognized in major markets worldwide
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ESIGN Act and UETA
Valid under federal law across the United States.
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Electronic Communications Act 2000 and UK eIDAS
Enforceable across the United Kingdom.
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eIDAS Regulation
Recognized in every member state, so you can sign across borders.
- PAdES
- Advanced Electronic Signature format built for PDFs
- AATL
- Certificate backed by the Adobe Approved Trust List
- Sealed
- Any change made after signing is detected
- Verified
- Checked automatically when the PDF opens in Adobe
Simple e-signing, real results
“Probably among the best electronic signature platforms. What I liked most was how simple and fast the whole signing process is — the interface is intuitive enough that even non-technical signers can use it without any learning curve. I also appreciated that the signatures are legally binding and Adobe-certified (PAdES compliant, ISO 27001), so I felt confident the documents were secure and enforceable. The flexible signing workflows (multiple signers, custom order, sequential signing) and the ability to sign from any device made it genuinely convenient, and the pricing is far more affordable than the bigger legacy platforms.”
“For a small team of 5-6 people, QuickSigner has replaced DocuSign Completely.
We’re able to track who is sending what documents, and can have preset templates for them to use. Devs have been receptive to feedback and added a the missing ‘Initials’ feature recently which has made it easier to use now. Overall, really solid platform, that just works!”
This service is a true hidden gem. After researching affordable e-signature tools, this is hands down the best one I found. The pricing is incredibly reasonable, and the value has been excellent. I use it regularly for contracts, and setting up templates has made the whole process much faster and easier. Once I understood how the fields work — using generic field names in the template first, then adding the actual signer names and emails when sending — everything worked smoothly. It’s affordable, practical, and reliable, which is hard to find in this space. I’m genuinely glad I discovered it, and I highly recommend signing up if you need a budget-friendly signature tool that actually works well.
“This is a super easy app to use. It’s not as sophisticated as the more established services, but I don’t need anything fancy, so long as my contracts look professional and are easy for my clients to use. I’m impressed with the speed of answers to my queries and the honesty of when/whether the issues are on their roadmap. My PandaDoc up is in a few days, but I won’t be renewing. I’m happy to keep going with QuickSigner.”
“Great Alternative to DocuSign – Impressive Value and Features. First review! I’m impressed. The platform offers all the essential features you’d expect, with excellent quality at a very competitive price point. It’s a solid choice for anyone looking for a reliable alternative to DocuSign, offering the core functionality plus a few extras. Overall, this is a fantastic tool with a lot of potential, and I look forward to seeing how it evolves!”
“One of the thing i most liked about QuickSigner is the simple API access so that everything can be automated with a click of a button.. The customer support received to help setup the API as newbie was amazing.. quick responses and great pricing for API usage. Overall great software and great team. There’s noting I disliked. But obviously looking forward to software company maturing and continue adding more features.”
E-signing made simple
Legally binding e-signatures, without the enterprise overhead
9/10 Users would recommend us to a friend
