Storage
Manage attachments and storage
Understand local and S3-compatible storage for source files, previews, attachments, completed PDFs, and audit evidence.
Self-hosted operators12 minutes
Before you begin
- Deployment access
- A private bucket for production use
What you will complete
- A private, durable storage configuration with a tested backup path
Know what is stored
- Original PDF, DOCX, and HTML uploads
- Rendered page previews
- Signer-provided files, images, and signatures
- Completed documents and audit logs
- Temporary processing and verification artifacts
Configure private object storage
Set S3_ATTACHMENTS_BUCKET to enable S3 storage. Provide AWS_REGION and credentials when the runtime does not use an instance or workload role. Set S3_ENDPOINT only for a compatible non-AWS provider.
Prefer workload identity or instance roles over long-lived access keys when the hosting platform supports them.
Validate storage before launch
- Upload and render a multi-page document.
- Complete a request with a file or image attachment.
- Download the completed PDF after restarting the application.
- Test backup and restore, not only backup creation.
- Confirm bucket objects are private and served through authorized Signa routes.