If you've ever had to merge a few PDFs, stamp a "CONFIDENTIAL" watermark, or turn a stack of images

into a single PDF on the server, you know the pain: pdf-lib, pdftk, ghostscript, native

binaries that won't install on your host, and an afternoon gone.

Here's a lighter option: a small HTTP API that does the common PDF jobs for you. You POST a file, you get

a PDF back. No dependencies, no native build steps, works from any language.