Okular

Okular provides document reader and annotation software. The website brings together document viewing, PDF annotations and supported formats.

Choose the task and the kind of material involved before using a tool. Supported formats, software requirements and available workflows help distinguish an online utility from a desktop application or information service. Read the provider’s current instructions for the selected operation. Product and data-handling information is useful when deciding how the tool fits the files, account or technical question you are working with.