How to Change the Date of your Digital Photographs

John Q. Public has just finished importing the videos and pictures from the digital camera to his laptop but realizes that the media files are incorrectly time-stamped.

Maybe the date and time settings of his “point and shoot” camera were set incorrectly or maybe the digital camera was stamping the files with local time though the pictures were being shot in another country with a different time zone. He probably forgot to change the time stamp of the camera before going on vacation.

How does John change the data and time of his pictures?

Most image editing software, Picasa and iPhoto included, allow you corect the data and time of photographs imported from a digital camera or a smartphone. You can import your digital photos in the software and select the ones that need to be fixed.

In the case of Picasa, choose Tools -> Adjust Date & Time and select a new date for your photos. This will change the “Date Picture Taken” field in the EXIF data of you picturs. Similarly, iPhoto users can choose Photos -> Adjust Date & Timeto set the selected photos to a particular date and time.

I however prefer a little-known command line utilitly called ExifTool for such operations since it is much more versatile. To get started, download the ExifTool executable and extract the zip file to your desktop. Now rename the exiftool(-k).exe utility to exiftool.exe and we are all set to adjust the date and time of our photographs.

Unlike the iPhoto or Picasa software that simply set the date and time of a photograph to another time stamp, Exif Tool can “shift” the data and time values associated with a picture. For instance, if your camera’s time was off by 2 hours 30 minutes at the time of capture, you can use ExifTool to shift the time stamp of all your pictures only by that “off” duration.

The sytax is:

exiftool.exe "-DateTimeOriginal+=Y:M:D h:m:s" filename.jpg

For instance, if wish to shift the time of photographs by 5 hours and 30 minutes, the command would be:

exiftool.exe "-DateTimeOriginal+=0:0:0 5:30:0" filename.jpg

And if you wish to perform a negative shift by 1 day, the command would be:

exiftool.exe "-DateTimeOriginal-=0:1:0 0:0:0" filename.jpg

Please refer to this document for the exact syntax and other examples.

exiftool.exe "-AllDates+=Y:M:D h:m:s" filename.jpg

Exif Tool makes a copy of your original photograph before updating the time stamp. The tool is free and available for Windows, Mac and Linux.

Download Mac Updates Once and Install on Multiple Computers

Mac OS X updates are huge with the installation files running into several gigabytes. The same is true for Mac apps like iMovie or Microsoft Office that have massive installers. The problem is compounded when you own multiple Mac computers and you need to upgrade them all to the latest OS X update. It will not just take too much time but you may end up consuming your monthly download bandwidth

A simple and obvious workaround to the problem is that you download the installer files on one Mac machine and then transfer the downloaded apps to all your other systems through AirDrop or WiFi. The Apple website says that “Apps [downloaded] from the Mac App Store may be used on any Macs that you own or control for your personal use.” This is however easier said than done.

Install Mac OS X Updates on Multiple Macs

You download a 5 GB Mac OS X installer from the App Store, the machine restarts, your system is upgraded to Mac OS X Yosemite or El Capitan but wait, where has the installer disappeared? Your Mac, in a bid to save space, deletes the original installer automatically after the upgrade and thus you cannot reuse it on other machines.

To get around the problem, after the installer has downloaded, quit the installation routine and do not restart the machine. Go to the ~/Applications folder on your Mac, find the installer file and Option+Drag it to another folder like ~/Downloads to make a copy that will stay even after the machine is restarted.

For minor updates, like OS X 10.10.8 or 10.10.9 updates, Apple releases standalone installers as .dmg files that you can download once and install on multiple machines. The releases are available as incremental updates (containing only changed files) or combo updates (all changed files since the last major release).

A simple Google search for “download mac ox x 10.10. combo” will reveal the direct download links for the .dmg files on the Apple support website.

Install Mac Apps from the App Store

In the case of apps downloaded from the Mac App Store, you’ll find the .app files in your /Applications or /Users/username/Applications folder that you can easily copy to your other Mac machines. Internally though, the App Store downloads the installer as a package file (with a .pkg extension) and this will not reside in the Applications folder but in a separate hidden folder.

You can grab these Installer Package files and install the same Mac app on other machines without having to download it again thus saving data. To get started, open terminal on your Mac and run the following command to know where the App Store has downloaded the installer files:

defaults write com.apple.appstore ShowDebugMenu -bool true

Now open the Mac App Store app and you’ll see a new Debug menu (see screenshot). Click the “Show Download Folder” menu and it will open the location of the download folder inside Finder where the Mac apps are temporarily download. You can find the .pkg files inside one of the sub folders that you copy to your other Mac systems via Airdrop.

[Bonus Tip] If you are upgrading to a new version of Mac OS X, like the upcoming El Capitan, press Cmd+L at the installation screen and it will open the installation log so you know what’s exactly happening behind the scene.

How To Use Samsung Smart View with Your iPhone/iPad

Samsung Smart View is a free application that turns your iPhone or iPad into a remote control for Samsung Smart TVs. In order to use this application, all that is required is that both devices be connected to the same local network. 

Control Your Samsung Smart TV with Your iPhone/iPad

Download Samsung Smart View from the Apple Store: 

Once downloaded, you will be able to change channels and control your television volume from your iPhone. You can even browse through Smart Hub applications and input text via the iPhone's virtual keyboard.

How To Reset a Wii U Console to Factory Settings

In this tutorial, you will learn how to reset your Wii U console to its factory settings. Please note that by doing this, all of your saved games, user profiles, and custom settings will be deleted from the console. 

How To Reset Your Wii U to Original Factory Settings

Start your Wii U and tap on the Settings icon (the wrench) of the Wii U gamepad. The System Settings menu will be displayed. 

Next, go back to the WiiU gamepad and use the left stick to move to the Delete All Content and Settings section. Press A to select. If you have enabled the Parental Control feature, you will be requested to enter your PIN. 

Click on OK, and then tap on Next > Delete Everything to complete the reset.

How To Record Gameplay on the PlayStation 4

The PlayStation 4 comes with a built-in DVR (digital video recorder) feature allowing you to record your gameplay footage and share it with your friends on social networks. This feature is only available within games (you won't be able to record the home screen) and it can record up to 15 minutes of your gameplay. 

How To Record Video on the PS4

Launch your game, and when ready double tap on the Share button of the DualShock4 controller to start the recording. The small video clip icon that appears at the top left corner of your screen indicates that the game is currently being recorded. 

Tap the Share button once more to stop the recording or double tap on the Share button to restart the recording over. 

Once you've hit the Share button, you will be take back to the Share screen > How do you want to share your experience? > Upload Video Clip. Tap on X to Upload the video to Facebook, YouTube or Daily Motion or tap on Square button to save the video to your Gallery > Video Clipsfolder (next to your screenshots). 

Before sharing your video, you should perhaps remove any unwanted sections. This operation can be performed directly from the Share screen: 

Tap on the Options button > Share Settings > Video Clip Settings > Trim. 

Switchable Graphics Cards on Windows 10

Some laptops come equipped with dual graphics cards, namely a high-performance standalone one (also known as a discrete graphics card) to run graphic intensive programs, and an integrated graphics chip built into to the motherboard. 

Integrated graphics cards are usually sufficient when it comes to running your OS (desktop), and performing basic tasks such as web browsing, video playback and document editing. However, in order to run games or graphic-intensive programs such as video editing, 3D animation, and CAD software, it is recommended that you switch to the discrete graphics card. This process is usually done by your operating system, but Windows 10 also allows you to launch program with the graphics card of your choice. 

The actual procedure of changing your graphics card is very easy. Simply right-click on the program shortcut > Run with graphics processor. You may then click on your desired option to designate the correct graphics card: