Description: Fritzing is an open-source electronics design software that allows users to document their prototypes, share designs with others, and order PCBs. It has a breadboard view, schematic view, and PCB view to design and document electronics projects.
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