Keep iPhone 12 and MagSafe Accessories Away from Pacemakers

Remember when we had to keep magnets away from floppy disks to avoid scrambling them? Modern storage is no longer vulnerable, but magnets and electromagnetic fields from consumer electronics can interfere with medical devices, like implanted pacemakers and defibrillators. Although iPhone 12 models contain more magnets than prior models, Apple says they’re not expected to pose a greater risk of magnetic interference. However, after a study found that one pacemaker could be deactivated by holding an iPhone 12 near it, Apple issued a support document recommending that you keep your iPhone 12 and MagSafe accessories more than 6 inches (15 cm) away from your medical device or more than 12 inches (30 cm) away while wirelessly charging. Better safe than sorry—if you have a pacemaker, don’t put your iPhone or any other consumer electronics in a breast pocket.

(Featured image by Ulrike Leone from Pixabay)

Reclaim Local Storage Space by Removing iCloud Drive Downloads

With iCloud Drive, Apple provides an Optimize Mac Storage checkbox that, when checked, stores the full contents of iCloud Drive on the Mac only if there’s enough space. However, you may wish to recover local storage space without selecting that option—luckily, that’s easy to do. Open iCloud Drive in the Finder, Control-click a file, and choose Remove Download. The file remains in iCloud Drive, and if you need it locally, you can click the cloud icon next to its name to download it. If you’re not sure which files in the iCloud Drive window occupy the most space, choose View > As List, and then click the Size column so the largest files sort to the top (click again if they’re sorting to the bottom).

(Featured image based on originals by Denny Müller on Unsplash and Mahir Uysal on Unsplash)

What Are Those Orange and Green Dots in Your iPhone’s Status Bar?

In iOS 14 and iPadOS 14, Apple added two new status indicators to the right side of the status bar at the top of the screen. They’re designed to give you feedback about what an app is doing. An orange dot indicates that an app is using the microphone, and a green dot means that an app is using the camera (and possibly the microphone as well). They’re subtle and shouldn’t be distracting, but if you ever notice them when you don’t think the camera or microphone should be in use, look for apps that might be using them in the background.

(Featured image by Bruno Massao from Pexels)

Keep Your Mac Quiet at Night and During Presentations with Do Not Disturb

We’re all accustomed to the Do Not Disturb feature on our iPhones since they’re with us for most of the day and often spend the night next to the bed. But Apple long ago added Do Not Disturb to the Mac as well, and it’s useful for muting your Mac at night to eliminate unnecessary noises and for preventing unwanted notifications during presentations. In System Preferences > Notifications > Do Not Disturb, you can tell macOS to turn the feature on during specific times, when the display is sleeping or locked, and when mirroring to another screen. Or, you can turn on Do Not Disturb manually—you might want to do this when giving a presentation with Zoom or another videoconferencing app. In macOS 10.15 Catalina and earlier, do this in Notification Center by clicking it at the far right of the menu bar, scrolling up, and enabling the Do Not Disturb switch. In macOS 11 Big Sur, you find Do Not Disturb in Control Center.

(Featured image by Andrea Piacquadio from Pexels)

Forget Adobe Acrobat: Preview May Be All You Need to Work with PDFs

We regularly hear from people who think they need Adobe Acrobat DC to manipulate PDFs. Don’t misunderstand: Adobe Acrobat is the gold standard, but it’s complicated and expensive—$14.99 per month or as part of Creative Cloud for $52.99 per month. In contrast, Apple’s Preview is easy and free with macOS. Here are six tasks that people may think require Acrobat but can easily be accomplished in Preview.

Remove and Rearrange or Export Pages

Have a PDF with unnecessary pages? You can delete them in Preview. First, make sure page thumbnails are showing in the sidebar by choosing View > Thumbnails. Then select the pages you want to remove and press Delete. Choose File > Save when you’re done—you’ll need to do that after all the rest of these tasks too.

Rearranging pages also happens in the sidebar—just drag the thumbnails as needed. If you drag a thumbnail to the Finder, Preview exports the page as its own PDF file.

Merge and Add Pages

What about putting pages from one PDF into another? Preview has your back there too. Open both PDFs, make sure their sidebars are showing page thumbnails, and then drag one or more thumbnails from one sidebar to the other, dropping them between the desired pages in the destination.

You can also drag a PDF from the Finder into the sidebar to add all its pages. Or, to take a photo or scan a document and insert it into the document, Control-click in the sidebar and choose Import from iPhone or iPad.

Annotate Text

Let’s say someone asks for edits or comments on a PDF. Although you can’t change the text with Preview, you can mark up the document.

  • Highlight text: They may give you flashbacks to high school, but Preview provides a handful of colored highlighters, along with underline and strikethrough styles. Choose one from the Highlight menu in the toolbar and then select the desired text.
  • Add highlight notes: To ensure that your highlights make sense to others, add notes to them. Control-click the highlighted text and choose Add Note. Then enter your note in the colored box that appears. It shrinks when you click away from it and expands when you click it again.
  • Add general notes: You can also place faux sticky notes anywhere on a PDF page. Reveal the Markup toolbar by clicking the Markup button, and then click the Note button. Dag the closed note box to position it on the page. See all your notes in the sidebar by choosing View > Highlights and Notes.
  • Add shapes and text boxes: The Markup toolbar also contains controls for creating various shapes (including lines with arrows) and text boxes. At times, the best way to show what you mean is to put a box, line, or text directly on the page. Click a shape to add it—text you type while it’s selected sticks with the shape, like the speech balloon below and the arrows above.

If you do need to edit the text of a PDF, that’s a job for Adobe Acrobat or another PDF tool like Smile’s PDFpen.

Redact Text

Sometimes, when you’re sharing a PDF, you want to redact sensitive information so it can’t be read. macOS 11 Big Sur’s version of Preview can permanently obscure and delete selected text from the document. Choose Tools > Redact and select the text you want to hide.

In earlier versions of macOS, you can simulate redaction by covering text with a colored rectangle. Unfortunately, recipients could delete your rectangle or copy the text underneath it. Don’t depend on this workaround to protect confidential information. For true redaction in older versions of macOS, use Acrobat or PDFpen.

Fill PDF Forms

Although Preview cannot create fillable PDF forms (again, turn to Acrobat or Smile’s PDFpenPro), it works fine for entering information into such forms. If you have to fill out an IRS form for your employer, for instance, Preview should work fine. Just click in a field and type, or click a checkbox to select it.

One warning. We’ve heard occasional reports that Windows users reading PDFs with forms filled out in Preview sometimes don’t see the entered text. When returning an important form, it’s always best to ask the recipient to confirm that it worked. If it doesn’t, fall back on the free Adobe Acrobat Reader DC.

Sign Documents

Now that so much paperwork has gone digital, we often need to sign PDFs. The most important documents will probably use a service like SignEasy that’s designed for collecting legally binding, secure signatures. But for something like a simple permit application, you can add your signature in Preview by clicking the Signature button in the Markup toolbar and choosing it.

Inserting (and resizing) an already created signature is easy, as is the one-time process of making one. Click the Signature button, and then click Create Signature. If your Mac has a trackpad, write on it with your finger or a rubber-tipped iPad stylus. Or use a marker to write your signature on paper and take a picture of it with the camera. In macOS 10.15 Catalina and later, you can also create a signature on an iPhone or iPad. Once created, the signature sticks around in Preview and even syncs to your other Macs through iCloud.

Note that Preview’s signature is just a graphic that could be copied, so it’s no more protected than a handwritten signature that could be scanned or photocopied.

Useful as all these features are, they’re just the tip of the iceberg when it comes to what Preview can do, particularly with graphics. For a complete look at Preview’s features, check out the 178-page ebook Take Control of Preview.

(Featured image by Cytonn Photography from Pexels)