Set a new default PDF viewer on your Samsung phone using the My Files app. Choose a compatible PDF app and select Always to use it for future files.
How to Change Default PDF Viewer on Samsung Phone
How to Scan QR Code on iPhone
Scan QR codes on your iPhone with the Camera app and turn on Scan QR Codes if it is not working. Use QR Code Gadget as a backup scanner when needed.
How to Factory Reset Samsung Phone without Password
Reset a locked Samsung phone through Android Recovery when you forgot the password, PIN, or pattern. The process erases the phone and prepares it for setup again.
How to Find Account on Roku TV
Check which Roku account is logged in on your Roku TV or Roku Streaming Stick. Use the About screen to view the signed-in account name and email address.
How to Scan QR Code on Your iPhone Screen
Scan a QR code displayed on your iPhone by taking a screenshot and using the built-in recognition control. If that does not work, decode the saved image with QRCodeGadget.
How to Cancel Subscription on Roku TV
Cancel a Roku channel subscription or free trial from the Roku TV home screen. Turn off auto renew and check the date your channel access ends.
How to Factory Reset Samsung Phone
Factory reset a Samsung phone from Settings when you know the PIN, or use Android Recovery when you forgot the passcode. Both methods erase the phone and prepare it for a fresh setup.
Best FREE Roku Channels to Watch Movies
Learn where to find free movies in the best Roku channels for 2026. This guide covers Tubi, Pluto TV, The Roku Channel, YouTube, and Fandango.
How to Change Default PDF Viewer on Android & Samsung
Set or switch the default PDF viewer on an Android or Samsung Galaxy phone using the Files or My Files app. Choose your preferred PDF app and set it to open PDFs automatically.
How To Combine PDF Files Into One
Combine multiple PDF files into one document for free using PDFGadget. Add your files, arrange their order, merge them, and save one PDF.
How To Hard Reset A Samsung Phone
Learn how to hard reset a Samsung phone when it is frozen, unresponsive, or showing a black screen. This button method forces a restart without covering a factory reset.
How To Download Music From YouTube As MP3 File
Download MP3 music files and sound effects from YouTube Studio’s Audio Library. This guide shows where to find the library and save tracks to your computer.