# Microservices

- [HTML to PDF](/microservices/generate-pdf.md): Renda offers a host of transformation functions to support a variety of enterprise document output needs.
- [PDF Transformation](/microservices/pdf-converter.md)
- [Time based Authentication](/microservices/time-based-authentication.md): TOTP Generation and validation APIs
- [Communication](/microservices/communication.md): The communication API enables text message delivery. Authentication systems can be quickly build using a combination of TOTP API and Communication API to authenticate and onboard users
- [QR Code Generation](/microservices/qr-code-generation.md)