Safari makes it easy to change the font size and zoom level of web pages so that you can view web pages comfortably.
Change the Font Size in Safari
To make the text larger or smaller, adjust the web page’s font size.
Change the Zoom Level in Safari
Changing the zoom level on a web page is a little different from changing the text size because the tool increases or decreases the size of both text and images. Here’s how to change the zoom level on a web page in Safari:
Add Zoom Controls to the Safari Toolbar
Add a zoom icon to the Safari toolbar to make zooming in and out even easier. Here’s how:
Enlarge Safari Pages on Macs With a Trackpad
Macs with a trackpad have more ways to change a web page’s size. Place two fingers together on the trackpad and then spread your fingers apart to make a Safari web page bigger. Pull the two fingers back together to reduce the size of the web page. A double-tap with two fingers on the trackpad zooms in closely on a section of the web page. A second double-tap returns the page to standard size.