Smallpdf is an easy-to-use online PDF tool that offers a range of features including editing, converting, compressing, merging, and signing PDF files. It empowers users to effortlessly manage PDF documents and enhance their workflow efficiency. Additionally, Smallpdf provides an AI-powered summarization function that can extract key content from PDFs found on Google Scholar. Users can access the essential features of Smallpdf for free, while a Pro version is available for those seeking more advanced functionalities.