Okular - Open Source Universal Document Viewer

In the digital age, the ability to access and interact with documents in various formats is essential. Okular, an open-source universal document viewer, stands out as a versatile tool that caters to this need. Developed by KDE, Okular supports a wide range of document formats, including PDF, EPub, DjVU, and many image formats, making it a one-stop solution for document viewing needs.

One of the key features of Okular is its annotation capabilities. Users can easily add inline and popup notes, highlight text, and even insert their own text annotations. This makes Okular an excellent tool for students, researchers, and professionals who often review and collaborate on documents.

Okular's user interface is designed to enhance the document viewing experience. With features like the 'Thumbnails panel' and 'Content panel', navigating through documents becomes a breeze. The 'Magnifier mode' is particularly useful for reading small text, ensuring that no detail is missed.