SB Sealed in Black Help Center
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Help Center

How can we help?

Simple guides for using Sealed in Black — plus a developer section if you’re connecting it to your own software.

Getting started

Guide · 2 min
What is Sealed in Black?
Send a document, let people sign it online, and keep a signed copy.
Guide · 3 min
Send a document to be signed
The step-by-step for sending your first document.

Using Sealed in Black

Guide · 3 min
Make a template you can reuse
Set a document up once, then send it again and again.
Guide · 2 min
Sign your own part automatically
Save your signature once and let your side sign itself.
Guide · 2 min
What the person signing sees
No account needed — they click a link, sign, and they’re done.
Guide · 2 min
See who signed and get your copy
Watch status on your dashboard and download the finished, signed PDF.
Guide · 2 min
One at a time, or everyone at once
When two or more people sign, choose the order.
Guide · 2 min
Text reminders and ID check
Optional: nudge signers by text, or verify them with a code.

Billing

Guide · 2 min
How paying works (credits)
You pay only when you send. No subscription required.

For developers

Developer · 3 min
For developers: the basics
Base URL, your key, and how authentication works.
Developer · 4 min
Send a document with code
POST a template + signer to send. Copy-paste PHP included.
Developer · 5 min
Get told automatically when it’s signed (webhooks)
Let Sealed in Black call your website the moment a document completes.
Developer · 2 min
Check status with code
Look a document up by id, or by your own reference.
Developer · 3 min
Sign inside your own app (embedded)
Host the signing page in an iframe instead of emailing a link.