ilovepdf/ilovepdf-python ? reverse-engineered prompt

Build me a Python library that lets me use the iLovePDF API from code to handle common PDF jobs like compressing, merging, splitting, converting Office files to PDF, turning PDFs into JPGs, making images into PDFs, adding page numbers, rotating, unlocking, watermarking, and repairing PDFs.

I want it to feel simple to use, like I can create a task with my API keys, add one or more files, run it, and then download the result to a folder. Please include a clean README with quick start examples, a few sample scripts, and tests so I can see how each task is supposed to work. Use the current iLovePDF API docs if you need to check details. Make sure it works with modern Python versions and is packaged so it can be installed normally with pip.