1GB+
Uploads
vs 25MB industry average
Sign for free
No account needed
eIDAS SES
Legally valid in the EU
How it works
Three steps. That's it.
Upload your document
Drag and drop any document: PDFs, contracts, agreements, up to 1GB. Encrypted from the moment it leaves your device.
Drag & drop or click to browseAdd signatures
Place signature fields, add dates and initials. Sign yourself or invite others by email. They don't need an account.
Legally binding e-signatureSend & track
Send with one click. Everyone gets a secure link. You'll see exactly who signed and when, with a full audit trail.
Real-time notificationsPowered by trusted infrastructure
No lag.
No waiting.
Just signing.
< 1s
Upload speed
100%
PDF quality preserved
1GB+
File Support
99.5%
Uptime
Every document is proof. Yours too.
BuiltSign does not just collect signatures. It builds a verifiable record that holds up when it matters.
Audit certificate
Every signed document gets its own tamper-proof certificate with timestamps, IP addresses, and a cryptographic hash.
How the certificate worksIdentity verification
Optionally confirm who signed using government-issued ID before the first field is filled. The result is embedded in the certificate.
Learn about ID verificationLegal validity across the EU
BuiltSign signatures are legally valid in all 27 EU member states under the eIDAS Regulation.
Read the legal basisPrivacy and data protection
GDPR and WPG compliant. Minimum data. EU infrastructure. Clear retention periods. A DPA is available on request.
How we handle dataVerify any signature for free
Anyone can check the authenticity of a BuiltSign certificate without an account.
Why BuiltSign
Larger files, smarter uploads
Where other tools stop at 40MB, BuiltSign goes up to 1GB+, with PDF merging, bulk uploads, and AES-256 + TLS 1.3 encryption.
Max file size
Merge PDFs into one
Upload multiple PDFs at once
Large PDF support
No account needed for signers
EU hosting & GDPR compliant
Fast large-file upload
Security
BuiltSign wins on 7 of 8 points
| Other tools | BuiltSign | |
|---|---|---|
| Max file size | Up to 40 MB | Up to 1GB |
| Merge PDFs into one | Limited or none | Up to 50 docs (Enterprise) |
| Upload multiple PDFs at once | One at a time | 3-50 at once |
| Large PDF support | ||
| No account needed for signers | ||
| EU hosting & GDPR compliant | Not always | |
| Fast large-file upload | ||
| Security | Basic | AES-256 + TLS 1.3 |
BuiltSign wins on 7 of 8 points
Simple pricing, no surprises
One flat rate. No per-envelope fees. Upgrade or cancel anytime.
Signers always sign for free. Only senders need a plan.
Pro
For professionals who send documents regularly
€ 249,00 billed yearly
Save 31%Save € 110,88/year with annual billing
- 15 signing requests/month
- Up to 200 signature & initials fields per document
- Documents up to 80 MB
- Upload & merge up to 3 documents at once
- 2 GB storage
- 5 templates
- 50 saved signers
- Basic audit certificates
- ID verification (€2.50/each)
- Email support (reply within 24h)
ID verification is optional and charged per successful verification.
Business
For teams that need more power and branding
€ 499,00 billed yearly
Save 17%Save € 100,88/year with annual billing
- Everything in Pro, plus:
- 2× more signing requests (30/month)
- Up to 500 signature & initials fields per document
- Documents up to 250 MB & 10 GB storage
- Extended audit certificates
- Custom branding & email domain
- Priority support (reply within 4h)
ID verification is optional and charged per successful verification.
Enterprise
For teams and organizations
Tailored to your needs
- Everything in Business, plus:
- Unlimited signature & initials fields per document
- Unlimited requests & storage
- Documents up to 1 GB
- Merge up to 50 documents per signing request
- Bulk accounts for your team
- White-label branding
- REST API + webhooks access
- Dedicated account manager
All plans include a 7-day free trial. No credit card required to start.
Working with very large files? Up to 1GB per PDF is available on Enterprise.
FAQ
Frequently asked questions
BuiltSign supports PDF files up to 1 GB on the Enterprise plan (250 MB on Business, 80 MB on Pro). Even on our starter Pro plan you're already well beyond the 25 MB cap that most tools impose. We handle those large files without loading them into memory, so performance stays fast regardless of size.