Embedded designer · Evaluate
Architecture for an Embedded Document Designer in a Multi-Tenant SaaS
A practical architecture for separating tenant data, template design, publishing, and PDF rendering in a SaaS product.
For saas team · 10 min · Reviewed Jul 31, 2026
The boundary that keeps the integration maintainable
Treat document design and business data as separate concerns. Your application remains the source of truth for customers, products, prices, permissions, and calculations. The embedded designer owns how approved fields are presented.
Expose a deliberate schema for each document type instead of passing an unrestricted application object. This keeps templates stable when internal models change and prevents template authors from depending on sensitive fields.
Tenant ownership model
Each template should belong to the same tenant or team boundary used by the rest of the product. The host application decides who may create, edit, preview, promote, and render a template.
- Resolve tenant identity on the trusted server.
- Issue only scoped access to the embedded editor.
- Store the PDFDesignAPI template identifier against the tenant and document type.
- Check ownership again before generation.
- Keep API tokens outside the browser.
Editing and publishing flow
Do not make every editor save a production release. Saves should advance a development version, while staging and production aliases move only after explicit review.
Use realistic tenant fixtures to preview long tables, missing optional values, multiple languages, and page overflow before promotion.
Generation flow
At generation time, the application loads authoritative data, maps it to the public document schema, validates it against the selected production contract, and requests a render.
Interactive downloads can use synchronous generation. Scheduled reports and large documents should use asynchronous jobs. Bulk statements or certificates belong in the batch flow.
Failure and lifecycle handling
Persist the template UUID, selected environment or version, render job identifier, and a request correlation identifier. Do not log the customer payload.
Generated job results expire after 24 hours. Move completed documents to your own access-controlled storage when your product requires longer retention.