Online PDF editors are web-based tools that allow users to create, edit, and manage PDF documents without needing to install software. These platforms typically offer features such as text editing, image insertion, and annotation, making it easy to modify PDF files directly in a browser. Popular online PDF editors include Adobe Acrobat Online, Smallpdf, and PDFescape. These tools are convenient for users who need quick access to PDF editing capabilities from any device with internet connectivity. Many online PDF editors also provide options for merging, splitting, and converting PDFs to other formats, enhancing their functionality for various document management tasks.