Description: Mathcha is an open-source math equation editor and renderer that allows you to create beautifully formatted mathematical equations and formulas for websites, documents, presentations, and more.
Type: software
Pricing: Open Source
Description: Okular is a versatile document viewer software for KDE. It supports viewing PDFs, EPUBs, ODT, and other document formats. Okular allows annotating, highlighting, commenting on documents as well as filling forms.
Type: software
Pricing: Free