Description: GnuPlot is a free, open-source graphing utility that can produce publication-quality 2D and 3D plots. It supports various plot types like line, scatter, histogram, boxplot, and contour plots. GnuPlot can also fit and manipulate data.
Type: software
Pricing: Open Source
Description: PDFescape is a free online PDF editor that allows you to view, edit, annotate, fill forms, sign documents, and more with PDF files directly in your web browser. It offers basic PDF editing features for free.
Type: software
Pricing: Freemium