Stirling-PDF screenshot
#52 B+ Rank #37

Stirling-PDF

Self-hosted web app for common PDF operations (merge, split, compress, convert, OCR) exposed as a set of stateless HTTP endpoints. A strong open-source alternative to paid PDF tool suites.

Dev Tools Java Easy to deploy $20/mo equiv
77.8 / 100

βš™ Full Stack

Spring Boot (Java) backend wrapping PDFBox/LibreOffice/OCRmyPDF tooling, exposing each PDF operation as a stateless REST endpoint with transient in-memory/temp-file processing per request.

πŸ“ˆ Scaling Analysis

Scales close to ideally for a processing workload β€” each request is independent and stateless, so adding replicas behind a load balancer linearly increases throughput, with the JVM's memory footprint per large-file operation being the main resource constraint.

πŸš€ Running on Nexlayer

Single-pod deployment is sufficient since operations are stateless request/response β€” no DB pod required. Mirror the Java base image via mirror.gcr.io and enable the optional login/security module env vars if exposing it beyond a trusted network.