fixed : “the file couldn’t be opened because you don’t have permission to view it“ error in Preview.app when trying to open a JPG-file

Question :

I am trying to open a JPG-picture in Preview.app, but I get this error : “the file couldn’t be opened because you don’t have permission to view it“

What can I do ?

 

Answer :

It isn’t clear why you get this error message, but the way to fix it is rather simple :

  • first, Quit the Preview.app if it is open :
    • press the [CMD]+[Q] key-combo on your keyboard
  • then reopen the Preview.app
  • then Force Quit the Preview.app :
    • press the [CMD]+[ALT]+[ESC] key-combo on your keyboard
    • when the new window opens, select Preview (the app) from the scroll-list
    • then click on the Force Quit button (bottom-right)
  • then reopen the Preview.app
  • now, the JPG files should open in Preview.app without a problem

That’s it !

enjoy 😉

fixed : how to duplicate a calendar event on iPhone (or iPad)

Question :

I am used to arranging my Calendar events mainly on my Mac, because I think I have more options there tan on my iPhone and iPad. But at this moment I do not have my Mac at hand and I want to duplicate (or copy-paste) a calendar event that is already in my Calendar to another date… but there doesn’t appear to be a simple button to do so…

Is there really no way to duplicate a calendar event on an iPhone/iPad ?

 

Answer :

Yes, there is an option built into iOS/iPadOS to do so, but it’s not as straight forward as you might like :

  • open the Calendar app
  • go to the calendar event you want to duplicate (or copy-paste)
  • click on it, so the Event Details page will open
  • then click on Edit (top-right), so the Edit Event page will open
  • then click on the tiltle of your event, so the red cursor line appears
  • then click-and-hold on the title of your event again, and when you release the pop-up options will appear in black, then choose Select All
  • the title of your event will now be entirely highlighted in red, and slightly different pop-up options will appear in black, this time choose Copy
  • then click Cancel (top-left)
  • then click on the date (in red) top-left
  • in Calendar-roll page, scroll to the date where you want to place the duplicate calendar event
  • then click + (the red plus-sign top-right), so a New Event page will open
  • click-and-hold on Title (in grey), and when you release the pop-up options will appear in black, then choose Paste
  • now, the event name will be pasted, and the Location-line will be pushed downward to make way for a Suggeted Event
  • click on the Suggested Event and all the additional settings of the original event will be filled out (put differently : you now have a duplicate of the original event)
  • now, adjust all details, like date, time, calendar, alerts, etc. to your liking
  • when ready, click Add (top-right in red)

That’s it… you now have a copy-pasted (and edited) the original event !

enjoy 😉

fixed : use old iPad as an extra screen for your Mac (or PC)

Question :

Since we are working from home a lot (and the children are home schooling), and we have several old iPads and iPhones lying around gathering dust, we were wondering if it would be possible to use them as second screens on our Macs and Windows PCs to make our work and homework easier by being able to do this (and more) :

  • manage our music playlist (iTunes, Apple Music, Spotify) on our old iPad/iPhone whilst running  MS Office on our Mac/PC without switching apps
  • use our old iPad/iPhone’s touchscreen to put a signature under a PDF-document whilst typing it on our Mac/PC
  • use our old iPad/iPhone as a drawing tablet for our Mac/PC
  • videochat or view an online presentation onour Mac/PC whilst making notes on our old iPad/iPhone using a full-size keyboard (and easily swapping the two around when needed)

We noticed Apple has introduced this great feature called Sidecar that enables you to use your iPad (or iPhone) as a second screen for your Mac. But when I looked at the Sidecar requirements on the Apple website, I found that our older iPads/iPhones aren’t supported.

Is there any way to use Sidecar (or something similar) on our old iPads/iPhones ?

 

Answer :

Yes, even though you cannot use Sidecar on any unsupported iPad, iPhone or Mac, there is an alternative that works just as great for any old iPad (or iPhone) and is not limited to a Mac, but does support Windows PCs also… and best of all : it’s FREE.

This is ideal for working from home and home schooling since you can do all this (and more) :

  • manage your music playlist (iTunes, Apple Music, Spotify) on your iPad whilst running  MS Office on your Mac/PC without switching apps
  • use your iPad/iPhone’s touchscreen to put a signature under a PDF-document whilst typing it on your Mac/PC
  • use your iPad/iPhone as a drawing tablet for your Mac/PC
  • videochat or view an online presentation on my Mac/PC whilst making notes on my iPad/iPhone using a full-size keyboard (and easily swapping the two around when needed)

This FREE alternative for Apple Sidecar is Splashtop Wired XDisplay. It enables you to use any iPad/iPhone running iOS 7 or newer as a second or third (touch)screen for any Mac running OSX 10.9 Mavericks (or PC running Windows 7) or newer.

This means that all these iPhone / iPad / Mac models are supported :

  • iPhone 4 or newer
  • iPad 2 or newer
  • any iPad mini
  • any iPad Air
  • any iPad Pro
  • any aluminum iMac (iMac “Mid 2007” or newer)
  • any iMac Pro
  • Mac mini “Early 2009” or newer
  • Mac Pro “Early 2008” or newer
  • white MacBook “Early 2009” or newer
  • any aluminum MacBook
  • MacBook Air “Late 2008” or newer (2nd gen MacBook Air or newer)
  • MacBook Pro “Mid 2007” or newer

To install, do this :

  • install the Splashtop Wired XDisplay app on you Mac/PC
    • you can download Splashtop Wired XDisplay for Mac or Windows here
  • install iTunes on your PC if you have done so yet
    • you can download iTunes for Windows here
    • on a Mac you don’t need additional software for your iPad/iPhone to be recognized
  • install Splashtop Wired XDisplay on your iPad/iPhone
    • you can download Splashtop Wired XDisplay for iPhone here
    • you can download Splashtop Wired XDisplay for iPad here
  • then, plug your iPad/iPhone’s USB-cable into your Mac/PC
  • then run the Splashtop Wired XDisplay app on your Mac/PC
  • then run the Splashtop Wired XDisplay app on your iPad/iPhone
  • then goto the Settings on your Mac/PC, find the Screen Settings and arrange your screens the way you like
    • you can choose “Mirror Screen” to see exactly the same on your MAc/PC and your iPad/iPhone
    • you can choose “Extend Screen” to arrange the iPad/iPhone as an add-on for your desktop
    • if you already have a second screen attached to your Mac/PC, you can use your iPad/iPhone as an additional third screen also

That’s it !

enjoy 😉

fixed : charge and use headphones at the same time on USB-C iPad Pro

Question :

My 2018 iPad Pro is great. I can use it for most of the office work I previously did on my MacBook. I have also started to use my iPad Pro for conference calls. For that I would like to wear my favorite over-ear headphones, which have a 3.5mm mini-jack and noise canceling. I got an official Apple USB-C-to-minijack adapter for that, but then I run into the problem that I cannot charge my iPad Pro at the same time. I have seen that there are various docking stations and port-multipliers that work with the USB-C iPad Pro, but those are very expensive…

Isn’t there a simpler solution ?

 

Answer :

Yes there is, but your choices are very limited : there are various splitters available that split the USB-C port into a USB-port and an audio-port… but : BEWARE ! nearly every single one of them does NOT work with the iPad Pro !!! (most of them only work on Android devices)

There is only one of the simple (and very affordable) splitters that is tested to work with the 2018 iPad Pro :

ESR 2-in-1 USB-C PD Headphone Jack Adapter ( buy it on Amazon UK / Amazon DE )

Note 1 : this splitter’s USB-C port is only capable of charging, not for a USB-(data)stick or a USB-keyboard or anything other than a USB-C charger

Note 2 : this splitter’s audio mini-jack does support both audio-out and audio-in, so when using headphones with a microphone (like gaming headsets) that microphone is used, but when using a regular headphone, the iPad Pro’s built-in microphone will be used

That’s it !

enjoy 😉

fixed : where can I get an Ancient Greek keyboard ?

Question :

I am learning Classical Greek (a.k.a. Ancient Greek) in school, and since I am home-schooling now, I would like to have a Greek keyboard.

Where can I get one ?

 

Answer :

For Ancient Greek, you would preferably use the so called “Greek Polytonic Keyboard” setting on your computer, which is slightly different from a regular / modern Greek keyboard layout.

To enable the “Greek Polytonic Keyboard” on your Mac or PC, see this post :

https://macmanus.nl/2019/02/14/typing-ancient-greek-text-on-mac-or-pc/

However, you are asking for a piece of hardware, a physical keyboard. If you want to buy an actual Greek Polytonic Keyboard, your options are extremely limited and really expensive, especially if you want a real Mac-keyboard (not a Windows-keyboard). You could of course use a modern-day Greek Keyboard instead, but getting yourself one if you’re not living in Greece is rather difficult (and expensive). So I would suggest one of these :

  • …or you can make some stickers yourself, using small round 12mm multi-color stickers and a marker (that you can get in most supermarkets and bookstores)

…and stick those onto an old USB- or Bluetooth-keyboard that you are not currently using. Here’s an example of the layout (yellow & blue are regular keys, white are shift-keys)

If you need an affordable new keyboard, buy the Logitech K120 keyboard (or something alike). Even if you are using a Mac, this Windows keyboard will do since you will be stickering the keys :

 

That’s it !

enjoy 😉

tips : which affordable display is best for working from home with a MacBook Pro ?

Question :

I need to work from home and I am looking for an affordable display to hook up to my MacBook Pro, to make my work a little easier.

Do you have any recommendations ?

 

Answer :

When buying an external display and having only a few hundred euros of budget*, look at these specs mainly, and decide which order of priority they have in your specific case :

*= this is for people who do not have a budget of €500 or more

  1. HDMI or DisplayPort :
    • what ports does your MacBook (Air/Pro) have ?
      • if it has USB-C (or Thunderbolt 3) only, get a display with HDMI-input and get a USB-C-to-HDMI-cable that can handle 4K@60Hz
      • if it has a miniDisplayPort (or Thunderbolt 1 or 2) and regular sized USB-ports, get a display with DisplayPort(v1.2)-input and a get a miniDisplayPort-to-DisplayPort-cable
  2. number of pixels (is preferrred over screen size) :
    • in any home office or home schooling situation, you will not be more than 60cm away from your screen (note : the front of the screen will be about 10cm in front of the wall, because of the display stand) : so there’s no need for a huge screen :
      • when you are about 40cm from your screen, go for a 21″ to 24″ display
      • when you are about 50cm from your screen, go for a 24″ to 27″ display
    • any display with 1920×1080 (1K/HD) pixels or more will do just fine
      • 1920×1080 looks great on 21″ or 24″ 16:9 screen
      • but 1920×1080 looks fuzzy on a 27″ 16:9 screen
      • 2560×1080 looks okay on a 27″ wide screen
      • but 2560×1440 looks great on a 24″ 16:9 screen
  3. IPS display :
    • for home office work or home schooling, get an IPS display – it has better color representation and is easier on the eyes when using it for extended periods (hours and hours of continuous working)
    • for gaming, you might consider getting some other type of display, like TN, that enables you to get higher refresh rates for a tighter budget, but you shouldn’t use those for anything other than gaming
  4. refresh rate :
    • for home office work, a refresh rate of 5ms @60Hz is perfect
    • for gaming, get as close to 1ms @144Hz as your budget can afford (3ms @100Hz or 2ms @75Hz is okay for budget gaming)
  5. adjustable height (and orientation) :
    • because of ergonomics, it is important that you adjust the height to make sure top of the display is at the same height as your eyes when sitting straight up
    • because light reflection on the screen will be extremely annoying, make sure the display has the option to slightly tilt
    • only if you are working on a lot of text documents you will benefit from the option to twist the display’s orientation from landscape (regular) to portrait mode
  6. integrated multi-port USB3-hub :
    • this is an essential ! make sure that there is a USB-multipier in the display and that it’s USB3.0 or USB3.1 based
      • since there aren’t many USB-ports on your MacBook (Air/Pro), you will need extra USB-ports (especially if you have a USB-C MacBook (Air/Pro), since you will need one USB-C port to connect the screen)
      • a USB-port on your screen will enable you to connect a USB3-to-GigabitEthernet-adapter which will outperform your WiFi connection, and your MacBook (Air/Pro) will instantaneously be connected to fast wired internet the moment you connect it to your display
    • 2 extra USB-ports on the Display is the bear minimum : you should prefer 4 or more USB-ports, so you can connect these if you need to :
      • a USB-mouse
      • a USB-keyboard
      • a USB-to-Ethernet adapter (preferably USB3-to-GigabitEthernet)
      • a USB-printer
      • a USB-scanner
      • a USB-flashcardreader (for photo camera memory cards)
      • a USB-to-TV adapter (e.g. an EyeTV stick, to watch picture-in-picture TV)
      • connect or charge your iPhone or iPad
      • an external harddrive or backup drive
    • for a keyboard or mouse (or even a wired joystick/joypad) you don’t really need a USB3.0 or USB3.1 connection, but for data transfer it will save you a lot of time
  7. price :
    • do not go for ‘lowest budget’ if you need to use the display for working from home or home schooling, find a display for €200 to €250 : even though you cheaper displays are available, do not buy any display that was under €200 when released : most of the time, you will be better of getting a slightly older (up to 3 years) display model that used to cost €300 or more
      • make sure you also take into account the extra headphone, sound system, ethernet-adapter, mouse, keyboard and alike when deciding on your budget for the display
  8. integrated webcam :
    • if you need to do video-conferencing, make sure you get a webcam with your display – an integrated webcam will turn out to be very convenient (an integrated webcam cannot compete with a high-quality webcam, but if you use an external webcam, make sure to get a display with a USB3-hub with enough ports in your display)
      • added bonus of most integrated webcams is that de webcam is either pop-up or slide-to-open, so you can easily prevent being ‘accidentally’ exposed to webcam viewers
      • make sure the integrated webcam is 1.2 megapixel (1.2MP) or more : the FaceTime HD webcam that is built into a MacBook is at least 1.2MP (in an iPhone X the selfie camera is even 7MP)
  9. integrated microphone :
    • if you have the need for a webcam on your display, make sure you also have a microphone – an integrated microphone will turn out to be very convenient (an integrated microphone cannot compete with a headphone with integrated microphone, a gaming headphone or a separate directional of voice microphone)
  10. integrated speakers :
    • most displays do not have integrated speakers, but having the option to watch home schooling lessons or YouTube-videos without a headphone are very convenient, even though audio quality of most integrated speakers is okay but not impressive (if you do not already have an audio systemconnected to your MacBook, these integrated speakers might even turn out to be essential)
  11. bezel thickness :
    • the bezel (the edge around the actual screen) is really important if you want to set multiple displays side-by-side, but most of the time it is only a matter of taste in design : about 15mm is okay, especially if the display will be placed in front of a distracting environment (like a window, fancy wallpaper or a hallway)

Note : make sure you also think about these :

  • you need to use an external keyboard and mouse (or trackpad) :
    • any mouse or keyboard that suits you will do, so if you have an old mouse and even keyboard around, use those
      • for work, USB, Bluetooth and RF (wireless connection from a dedicated USB-to-wireless-plug) will all do
      • for gaming, only USB is advisory as any wireless connection might get laggy during intensive use
    • if you need to buy a new keyboard, think about these :
      • get a ‘Designed for Mac’ keyboard with the Mac key-layout, so with a COMMAND/CMD-key (and not a WINDOWS-key : only if you can typ blindly without any restrictions, you can get a Windows-layout keyboard and remap the keys in macOS)
      • get a keyboard that suits your main language : usually that is a QWERTY-layout, but for French it is AZERTY-layout and for German it is QWERTZ-layout (this will also help when you need to use accents in texts)
      • if you need to typ a lot, get a keyboard mechanical keys and spacing between all keys
      • if you need to input a lot of numbers (if you’re in accounting or working with Excell sheets) get a full-size keyboard with an integrated numeric pad (on the right of the keyboard)
      • a keyboard with an integrated trackpad can be beneficial for some, but make sure you get one with a Mac key-layout
      • an ergonomic keyboard can be really beneficial, but there are very few ergonomic keyboards with a Mac key-layout
    • if you need to buy a new mouse, think about these :
      • a mouse with a right and left button and a scroll-option will do for most purposes
        • most people have no need for a fancy gaming mouse with more than these 3 functions
      • consider using a trackball or ergonomic mouse
      • a Bluetooth or RF-wireless mouse does have downsides :
        • it will need to be charged (Apple’s Magic Mouse 2 is problematic in this respect…)
        • it easily gets lost
        • when the battery is down, you will need to open your MacBook and use the built-in trackpad until the mouse is recharged
    • if you need to buy both a new mouse and a new keyboard, have a look at the mouse & keyboard combo offerings by renowned brands like Logitech,
  • make sure your MacBook (Air/Pro) has it’s power adapter plugged in when using an external display, else you cannot use your display with the MacBook’s lid closed and your MacBook will quickly run out of battery
  • if your MacBook has USB-C (Thunderbolt 3) ports, and your Display doesn’t have a built-in multi-port USB3-hub, consider getting a USB-C Docking-hub
  • if your MacBook has regular USB ports, and your Display doesn’t have a built-in multi-port USB3-hub, consider getting yourself an additional USB3-hub
  • if your mouse is on a very reflective surface (like a glass table) or a wobbly surface (like a rustic wooden table), your mouse will not work reliably, so it is advisory to use a mouse mat (or a plastic placemat or even a sturdy-covered magazine)
  • to minimize the clutter of cables, you can use a cable hose to keep your cables together (budget option : use tie-ribs, or even ‘the pieces of plastic covered metal wire’ that you get with nearly every cable or electronic device you buy, to tie your cables together)

 

Some suggestions (no single display is optimal on all requirements) :

for office & graphic work : BenQ BL2420PT display : 23.8″ / 16:9 / 2560×1440 (2K/QHD) / 5ms / 60Hz / IPS / HDMI v1.4 & DisplayPort v1.2 / adjustable height & orientation / 2x USB2.0 out / no webcam / 2x 1W stereo-speakers / audio minijack out / 15mm bezel

for videoconferencing & office work : Philips B-line 241B7QPJKEB / 23.8″ / 16:9 / 1920×1080 (1K/HD) / 5ms / 60Hz / IPS / HDMI v1.4 & DisplayPort v1.2 / adjustable height & orientation / 3x USB3.0 out / pop-up 2MP webcam / 2W stereo-speakers / audio minijack out / 2mm bezel

for gaming : BenQ Zowie XL2411P display : 24″ / 16:9 / 1920×1080 (1K/HD) / 1ms / 144Hz / TN / HDMI & DisplayPort v1.2 / adjustable height & orientation / no USB out / no webcam / no speakers / audio minijack out / 15mm bezel

miniDisplayPort cable : Rankie miniDP-to-DP-cable : miniDisplayPort in / DisplayPort out / up to 4K/UltraHD (3840×2160)

USB-C to HDMI cable : Uni USB-C HDMI cable : USB-C in / HDMI out / up to 4K/UltraHD @60Hz (3840×2160)

USB3.0-to-Ethernet-adapter : TP-Link UE300 Gigabit LAN adapter : USB3.0 / RJ45 LAN / Gigabit (10/100/1000Mbps) Ethernet

USB-C-to-GigabitEthernet-adapter : AmazonBasics USB-C Gigabit LAN adapter : USB-C / RJ45 LAN / Gigabit (10/100/1000Mbps) Ethernet

USB2.0-to-Ethernet-adapter : TP-Link UE200 LAN adapter : USB2.0 / RJ45 LAN / 10/100Mbps Ethernet

USB3-hub : Vogek 6 port USB3.0 hub : powered hub / 6x USB3.0 out

office keyboard : Logitech K380 keyboard : full-size keys / wireless RF & Bluetooth / no numeric pad / macOS printing on-key / no trackpad

high-end office & design keyboard : Logitech MX keyboard : full-size keys / wireless RF & Bluetooth / numeric pad / macOS printing on-key / no trackpad

keyboard with trackpad : Logitech K400 Livingroom keyboard : full-size keys / wireless RF & Bluetooth / no numeric pad / no macOS printing on-key / trackpad

ergonomic mouse mat : Comfort Gel Wrist Support Mouse Pad

cable hose : Neoprene Cable Tube

 

 

fixed : can’t edit cells in Numbers

Question :

I made an extensive table in Numbers yesterday and saved when I was ready for the day. Today I want to work on it again, and it opens without a problem, but I can’t edit any cells… I can’t click in any cell, I can’t type anything inside it and the 1-2-3 numbering of the rows and the A-B-C ‘numbering’ of the columns doesn’t appear either…

The only thing I can edit are three cells at the top of the page…

What is wrong ?

 

Answer :

The solution might be rather simple :  probably, you have accidentally entered the Printing Preview mode.

You can see you are in Printing Preview mode when there are 2 buttons visible at the bottom the Editing pane on the right : “Done” and “Print…”

If so, just click on the “Done”-button to leave the Printing Preview mode and go back to the main Editing screen.

That’s it !

enjoy 😉