Mac hacks

Handy tips and tricks to use MacOS like a boss

Take screenshots with shadows

Press ⌘ + shift + 4 then press Space. The selector will then change into a camera icon, and you can take a screenshot of the selected window with a shadow. Screenshot gets stored on Desktop by default.

(Source)

Add custom website search to Firefox

To save

1. Go to the website (say Stackoverflow)

2. Right click on the SEARCH field, select Add A Keyword For This Search

   
3. Save the bookmark with a custom keyword

   

To use

1. In the address bar, just type the customer keyword followed by a space followed by the search query: <keyword><space><search query>

Reduce file size - good quality filter in Preview

https://apple.stackexchange.com/questions/297417/how-to-decrease-pdf-size-without-losing-quality