# What is PrintLean? **What is PrintLean?** PrintLeanSlider is **JS plugin** that automatically detects a photo on the page and generates a unique product design with that image. #### Who Printlean is built for? Printlean allows photostock website owners to offer their clients print-on-demand services. This means that customers can use photos from the site to customize products such as iPhone cases, t-shirts, backpack, etc using the Printlean widget. **What is ProductSlider?** ProductSlider is a JavaScript **widget** that displays **PrintLean** products on website. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.printlean.com/printlean-documentation/what-is-printlean.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.