How to Save PDFs on an iPad (6 Steps)

Launch the 'App Store' on your iPad and browse for a PDF app. Nearly any eBook reading app, such as iBooks or Kindle, can read and save your PDFs in an easily accessible format on your iPad. These apps are generally free. If you need to work with the PDF on your iPad, enter 'annotate PDF' in the App Store search box and find a PDF editor that has the functions you need.
Download the app onto your iPad by tapping the 'Free' button or price, selecting 'Install' and confirming your password. You do not need to launch the app after it installs.
Navigate to your PDF document. If it is on your computer, email it to yourself, and then tap the attachment to download it onto the iPad. If it is online, visit the site where the PDF is located and click the link to download the document. The PDF will open in Preview mode, but this does not save it to your iPad.
Tap the 'Open in' button in the upper-right corner. If you don't see this button, tap anywhere in the document. This will bring up the menu bar, including the button.
Select the app you just installed from the 'Open in' list. The iPad will automatically launch your app and open the PDF within it.
Tap 'Save' to save the PDF if that option is available in your app. Many apps will automatically save the PDF, so you may not see a 'Save' button. In this case, simply press the back arrow to go to the app's main interface or press the Home button to leave the app. The next time you launch the app, you will see your PDF stored in the app's files.
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How to Change the Language in the App Store

Tap the 'Settings' app.
Select the 'General' option.
Choose the 'International' option.
Select the 'Language' option. Choose the new language from the list of options and tap 'Done.' This changes the language for all functions on the iPhone.
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How to Ping Your Network From an iPhone (8 Steps)

Make sure that your iPhone is connected to the network you want to scan via WiFi.
Go to the App Store on your iPhone and download the 'Network Ping Lite' application. It is a free app as of this writing.
Open the application and you will see four choices: Ping, Ping Subnet Traceroute, and Telnet. For this article we'll focus on the functions related to pinging.
Choose 'Ping' to ping a specific device.
Enter the DNS name (google.com) or IP address of the specific device you would like to ping and hit 'Start.' Your iPhone will now send out four ICMP packets and will tell you the outcome in the 'Output' section.
Note: You can do a continuous ping by flipping the 'Ping Forever' switch at the bottom.
Choose the 'Ping Subnet' icon to ping an entire subnet.
By default, the app should pick up the subnet that your iPhone is already on. You can change it to check a different subnet or range of IP addresses. (Note: It can only check Class C network subnets.) You can adjust the 'Ping Delay' which is the amount of time that the app will wait for a reply from the device before it declares it failed.
Hit 'Start' and the scan will begin. You'll see a table of all the possible Class C IP addresses for that subnet and the app will change the color of each as it scans to let you know which ones replied. Black = no reply. Green = Received reply. Yellow = last request failed. Red = stopped giving answer. The scan will take several minutes to complete, so be patient.
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How to Create a Desktop Slideshow in Mac OS X

Navigate to your root-level 'Library' folder and open the 'Desktop Pictures' folder. To get to the root-level folder, click on the image of your hard drive in the Finder, usually called 'Macintosh HD,' and click on 'Library.'
Create a new folder in the 'Desktop Pictures' folder and call it 'Desktop Slide Show.'
Select the photographs you want to use and copy them into the new folder created in the previous step. Use the 'Copy' and 'Paste' functions by right or control-clicking the image. If you just drag the photos, you'll end up moving them out from the original folder.
Open the 'System Preferences' by clicking on the Apple logo in the top left.
Select 'Desktop and Screen Saver' in the 'Personal' section of the System Preferences.
Click the 'Desktop' button to go to the Desktop Preferences screen.
Select 'Choose Folder' and navigate to the 'Desktop Pictures' folder you created earlier.
Click the 'Choose' button.
Click the 'Change Picture' checkbox on the bottom left of the 'Desktop' Preferences window.
Choose a duration from the drop-down box next to 'Change Picture.' You can select any duration from 5 seconds to every day, to when you log in or the computer wakes up.
Check the 'Random Order' checkbox if you want the photos in random order, otherwise uncheck it to leave the photos in order.
Quit System Preferences by hitting the Command (aka Apple) Key and Q.
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