Written in C++ and based on Qt, Scribus is a free and opensource cross-platform Desktop publishing tool. To install Okular on Ubuntu 20.04, run: $ sudo apt install okular

Okular provides users with the ability to add textboxes, comment on PDF documents, draw lines and shapes, trim page borders, and read-aloud text using the Qt speed functionality. It is therefore native to the KDE environment and distributed as part of the KDE bundle.īeing a multi platform viewer, it supports a wide range of document formats including PDF, JPG, TIFF, XPS, markdown, ODF and so many more. Nonetheless, it is still a powerful tool if all you are looking into is making simple modifications to your PDf files.ĭeveloped and maintained by KDE, Okular is a multi platform document viewer based on Qt and KDE framework libraries.

You can only make simple modifications such as adding text, images, and text boxes to your pre-existing PDF documents. You do not need to purchase a proprietary PDF editor that will bleed your pockets dry. LibreOffice Draw is a built-in and handy PDF editor that allows you to make edits to your PDF documents.

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