Template builder
Create fillable templates from PDF or DOCX and place fields where signers need to complete them.
Learn more
Next-gen document infrastructure
Trustseal powers the future of secure, compliant, scalable, automated, and trusted business workflows
The flexible e-signature and document platform for teams that need airtight security, deep API control, and beautiful signing experiences.
Template setup
Advanced Template Builder
Supported Template Files
Upload PDF or DOCX templates, add fields, and prepare documents for repeatable signing workflows.
- Upload PDF and DOCX templates
- Add signer fields with visual placement
- Reuse templates across submissions
Field Detection
Detect existing fields in templates to speed up setup before manual adjustments.
Template Variables
Prefill template values through the API so generated documents are ready for recipients.
Core features
Built for teams that need signing that ships fast
Everything in one place to prepare templates, collect signatures, and integrate with your existing systems.
Online signing
Collect legally recognized e-signatures with signer flows that work across desktop and mobile.
Learn moreAPI and webhooks
Create templates and submissions programmatically, then react to events in your backend.
Learn moreMulti-recipient flows
Send to one or many recipients with role-based completion and shared progress tracking.
Learn moreEmail delivery
Send signing requests and reminders through SMTP-based email notifications.
Learn morePDF verification
Verify digital signatures and exported signed documents directly from the platform.
Learn more
Why teams choose it
One platform. Practical workflows. No lock-in.
From template design to signed output, Trustseal covers the complete signing flow in a single app.
Self-host or cloud
Deploy with Docker and keep your documents under your own operational control.
API-first platform
Use REST endpoints and webhooks to connect document flows to your product.
Mobile-friendly signing
Signers can complete documents from desktop and mobile browsers.
Auditability built in
Track signer and submission events with downloadable signed documents.
Team management
Manage users, roles, templates, and submissions from a shared workspace.
Integrations
Use webhooks, SMTP, and storage integrations to fit existing infrastructure.
Your Workflow, Automated.
1
Prepare Template
Drag and drop fields onto your document, then assign roles and validation rules in minutes.
2
Send & Sign
Share via email or direct link and let signers complete everything securely on any device.
3
Complete & Automate
Signed documents are archived, while webhooks and API events trigger your downstream workflows.
Draft
Signed
Workflow Secured
Built for Integration Workflows
Connect signing operations to your product using documented API endpoints, webhooks, and embeddable flows.
Webhook Events
Receive real-time notifications for submission created, signed, and finalized events directly in your backend.
- Submission lifecycle events
- Webhook endpoints by event type
- Deliver events to your backend
Embedded Signing
Keep users in your product with embedded signing links and branded signer pages.
- Embed signing in your app
- Use your own account branding
- Support desktop and mobile signers
REST API
Automate template and submission lifecycle actions using a JSON-based REST API.
- Create and manage templates
- Create and track submissions
- Manage documents and recipients
Template Field Builder
Flexible Field Types
Build fillable documents with field types for signatures, text, dates, selections, files, and structured inputs.
signature
Core Signing Fields
Capture signatures, initials, and text values required to complete document workflows.
text
signature
initials
verified
Reusable Field Set
Use common field groups across templates to keep signing experiences consistent.
edit_note
input
signature
signing
signature
Identity
signature
person
Initials
initials
text_fields
Text
text
calendar_month
Date
date
123
Number
number
list
Select
select
check_box
Checkbox
checkbox
radio_button_checked
Radio
radio
checklist
Multiple
multiple
upload_file
File
file
image
Image
image
grid_on
Table
cells
Designed for Real Document Work
Create templates once and reuse them across repeated signing workflows with consistent data collection.
security
Template Reuse
Use one template for many submissions and recipients.
history_edu
Submission Tracking
Monitor each signer and document completion status from the dashboard.
Multiple recipients
Multi-Party Collaboration Made Simple
Route documents through one or many recipients and keep each signer step clear.
low_priority
Ordered Signing Steps
Configure signer order so each participant completes their part in sequence.
groups
Parallel Recipient Flow
Invite recipients to complete documents without requiring a strict sequence.
assignment_ind
Recipient Roles
Assign each recipient their own fields and completion responsibilities.
Trust & Control
Security Features You Can Use Today
Keep documents protected with encrypted transport, detailed audit events, and deployment options that fit your security model.
Self-hosting
Audit events
PDF verification
Role-based access
Encrypted Data Transport
Use HTTPS and secure storage backends to protect document data in transit and at rest.
Full Audit Trails
Every action is recorded with time, IP, and event metadata for complete traceability.
Operational Security Controls
Trustseal includes practical controls for teams that need secure signing with clear operational ownership.
Self-hosted Deployment
Run the platform in your own environment using Docker-based deployment.
Signature Verification
Verify digitally signed PDFs and keep document integrity checks within your workflow.
FAQ
Frequently Asked Questions
Can I self-host this project?
Yes. This project is open source and can be self-hosted using the provided Docker deployment path.
What can I automate with the API?
You can manage templates, submissions, documents, and recipients through REST API endpoints.
Does it support webhook events?
Yes. Webhook endpoints are available so your backend can receive submission and form event updates.
What template formats are supported?
PDF and DOCX templates are supported for creating fillable signing workflows.
Can signed PDFs be verified?
Yes. The project includes PDF signature verification capabilities for signed documents.
Ready to streamline document signing?
Start creating templates, sending signature requests, and integrating signing into your product.
SYSTEM STATUS: OPERATIONAL
Live Platform Activity
Real-time visual processing of high-assurance digital infrastructure. Experience the velocity of global trust at scale.
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DOCUMENTS SIGNED WITH TRUSTSEAL