Question: Can you recommend a secure and reliable API for generating financial reports, like invoices and expense reports, in PDF format?

First, PDF Hippo offers a powerful API for converting Excel documents into PDFs that you can customize. It offers dynamic data mapping, full data privacy and integration with a variety of business tools like Excel, Notion, Airtable and Monday. PDF Hippo offers a range of pricing options from a free tier to enterprise deals, so it's a good choice for financial reporting.

Another good option is PDFMonkey, which lets developers manage templates, add dynamic data and generate PDFs through a REST programming interface. The service is designed to protect data with features like encrypted storage and real-time PDF previews. It also offers integration with charts and a range of pricing options, so it's good for generating financial reports.

If you need an option that works well with HTML, Doppio offers an API for generating high-quality PDF documents and PNG screenshots. It supports responsive design and graphical rendering, and you can store generated documents in your own S3 bucket for privacy. It also offers scalable document generation and a range of pricing options, so Doppio can be a good choice for generating financial reports.