Case Study
Invoice PDF Generator
A structured invoice generation system that produces consistent, professional PDF invoices from clean data — designed to integrate into apps, dashboards, or automation workflows.
Project type
PDF automation
Input
Structured invoice data
Output
Branded PDF invoices
Use cases
Billing • Reports • Exports
The problem
Invoices are often generated manually or inconsistently, leading to formatting issues, missing information, and brand inconsistency. Scaling billing workflows requires a system that generates reliable PDFs automatically — every time.
The solution
This system takes structured invoice data and renders clean, branded PDF documents using reusable templates. It’s designed to plug into web apps, desktop tools, or automation pipelines with minimal friction.
Key features
- Template-driven PDF generation (consistent layout)
- Support for line items, totals, tax, and notes
- Branding-ready (logo, colors, footer text)
- Deterministic output (same input → same PDF)
- Easy integration into existing systems
- Extensible for multi-currency and localization
Architecture
The system separates data preparation from rendering logic, ensuring templates stay clean and invoice rules remain predictable.
Core components
- invoice_builder
- template_engine
- pdf_renderer
- validators
Typical data model
- invoice
- invoice_items
- customer
- company_profile
Outcome
A reliable invoice generation system that removes manual work, ensures brand consistency, and scales cleanly as billing volume grows.
Video
Invoice generation demo (optional)
Optional walkthrough: input data → generated PDF preview.
Gallery
Invoice samples
Different invoice layouts, data variations, and branding examples.
Need automated, professional invoices?
If invoicing is slowing you down or looks inconsistent, I can build a PDF generation system tailored to your workflow.