If you have shared a file in Dropbox but now need to replace it without changing the previously shared link, don’t replace the file in the Finder. Adam Engst explains what to do instead.

In iOS 13 and iPadOS 13, Apple added scroll bar functionality that lets you quickly scroll through long documents and Web pages. It’s about time the iOS scroll bar did more than indicate your position in a document.

Have you ever found yourself in a situation where you have three or more screens attached to a Mac, and you want to mirror some combination of them? It turns out that macOS makes that possible. Read on for the trick to achieve it.

Twitter’s Web redesign isn’t everyone’s cup of tea, but at least it now lets you easily switch between accounts.

YouTube tries to hide the Picture in Picture feature on the Mac and iPad, but it's easy to find if you know the trick.

Tired of the Apple TV’s Home button taking you to the Apple TV app instead of the Home screen? Here’s a quick and easy fix.

Now and then, when you’re browsing the Web in Safari in iOS, you might want to load the desktop version of a site or reload a page without your content blocker enabled. Here’s how to do that, but beware that it may not work as desired.

System Preferences is an essential tool that lets you customize your Mac in numerous ways. Learn how to customize System Preferences itself, the different ways you can open it, and how to navigate quickly to the pane you need.

Ever wished that you could compare an edited image in Photos with the original, without using Undo or Revert to Original? Read on for the trick in both the Mac and iOS versions of Photos, and for the even more hidden trick on the Mac that helps you compare cropping.

Want to get the contents of a Web page, such as a back issue of TidBITS, into your email archive? Surprisingly, it’s a task most easily accomplished using Safari and Mail, rather than any other Web browsers, email clients, or online services.

iOS updates download automatically if there’s sufficient space on your device, but if you want to use that space for photos, videos, or whatnot before you’re ready to install the update, here’s how you can recover hundreds of megabytes (or even gigabytes!) of storage.

Have you ever thought you were recording video on your iPhone, only to realize after the fact that you failed to tap the record button properly? Here are a few things to look for to make sure you never miss a video again.

If you’ve ever needed to work with invisible files on your Mac but didn’t want to drop into Terminal, read on for the secret keyboard shortcut that reveals the files and directories that are normally hidden in the Finder.

iOS 11 quietly introduced a camera level that helps you take pictures that don't suffer from skewed sides. Read on to learn how you enable and use this subtle feature.