Developer builds lightweight invoice PDF API using pure Python, no headless browser

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A developer has launched InvoicePDF, a REST API that generates invoice PDFs by accepting a simple JSON payload and returning a formatted document. The tool is built on fpdf2, a pure-Python PDF library, eliminating the need for resource-heavy headless browsers like Puppeteer or Chrome. To ensure financial accuracy, the API handles all monetary calculations using integer minor units internally, avoiding floating-point rounding errors. The project is open source under the MIT license and offers a free tier of 100 invoices per month with no sign-up required. A live playground and sample PDF are publicly accessible on the project's website.

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