for pdf reader, Skim is a nice light weight app for macOS. https://skim-app.sourceforge.io/ https://skim-app.sourceforge.io/ (For Windows there is SumatraPDF:

for pdf reader, Skim is a nice light weight app for macOS. https://skim-app.sourceforge.io/ https://skim-app.sourceforge.io/ (For Windows there is SumatraPDF: https://www.sumatrapdfreader.org/free-pdf-reader https://www.sumatrapdfreader.org/free-pdf-reader)