Posts from the desk of Dennis Sellers

Quick Tip: How to Sign a PDF in macOS Catalina Mail

Like me, you’ve probably had a PDF emailed to you that you need to sign. It’s a pain to print it, sign it, then scan it in order to send it back. Thankfully, there’s a better way. You can actually sign it right in the Mac Mail app.


Mac night Shift Logo with text saying "Night Shift"

How to Use Night Shift in macOS Catalina

macOS’s Night Shift is a feature brought over from iOS starting with macOS High Sierra. It helps you reduce the amount of blue light you’re exposed to during the evening by shifting the display of your Mac to a...

Collections of favicon images

How to Enable and Disable Favicons in macOS Catalina

With macOS Mojave, Apple has added support for favicons (short for “favorite icons”) in Safari tabs. Favicons are those little icons that let you quickly identify which of your open tabs is which website. A favicon is a file...

Screenshot of Mac Desktop with the word "Stacks"

How to Use Stacks in macOS Leopard Through Catalina

Stacks are a feature found introduced in macOS Leopard (although the official name at the time was “Mac OS X Leopard). Specifically, Stacks was available in the Dock (but nowhere else) starting with Leopard. The feature “Stacks” files into...

macOS Utilities Window How to Use macOS Recovery in...
macOS Recovery is part of the built-in recovery system of your Mac. It can help you restore data from Time Machine, reinstall the operating system, get online help online,...

Mac Reminders App icon How to Use the Redesigned Reminders...
Apple’s Reminders app for the Mac has been completely revamped for macOS Catalina with a new user interface and several new features.One of my favorite features is the...

iTunes Sore Icon with text saying "iTunes Store" How to Make the iTunes Store...
With macOS Catalina, music, videos, podcasts, and audiobooks are organized into their own dedicated apps — named, appropriately enough, Music, TV, and Podcasts, and Apple Books. You can also...

Screen shot of iPhone finder management in masOS Catalina How to Make Your iPhone and...
With macOS Catalina, Apple broke up the iTunes app into three separate apps: Apple Music, Apple TV, and Podcasts. Previously, you could connect iPhones, iPads, and iPod touches to...

How to Increase or Decrease the...
Sometimes when I'm viewing an article (usually involving patent images) in Safari, it's hard to view an entire image. However, you can increase or decrease the zoom level of...

iOS Files App icon with ConnectToIcon icon How to Connect Your iPad to...
With iPadOS, you can now connect your iPad to a local server. This allows you to mount your Mac or PC and access files from that device.  To do...

blue macOS Messages icon and green iOS Messages icon linked by orange sync icon How to Sync Messages Across Your...
Recently, after upgrading to a 16-inch MacBook Pro, I noticed that Messages sent from my iPhone didn’t appear on my Mac, and vice versa. It took me a while...