iLovePDF is a free online service that allows users to easily perform various tasks with PDF files such as merging, splitting, compressing, converting between formats, and more without the need for additional software. It provides tools to merge multiple PDF files together, split a single PDF into multiple files based on page numbers, compress PDF files to reduce size, and convert PDFs into editable Word documents. The website is designed to be intuitive with tools accessible through clearly labeled buttons for common PDF tasks.