On an iPhone, you can make and share GIFs right in a text—and it's powered by Tumblr. FYI, the Tumblr GIF extension for iMessage is only available on iOS 10 or higher and you’ll need to have the Tumblr app installed.
- Open a conversation.
- Tap the App Store icon to the left of the chat box.
- If you don’t see the Tumblr GIF icon there, tap the icon that looks like four ovals at the bottom, left-hand corner of the screen. Then tap the “Store” icon. Turn Tumblr GIF on and tap “Done.”
- Swipe through the extensions until you reach Tumblr GIF, and tap the icon.
- Select a video or a burst (or heck, take a new video).
- Choose a three-second clip that will become a GIF.
- Here you can pinch the screen to crop the GIF, drag the blue box underneath the GIF to shorten its duration, adjust the slider at the bottom of the screen to decide how fast you would like it to play, and tap the circular arrow to toggle between loop and rebound.
- Tap "Next" to edit your GIF. To add text, tap "Aa," then tap the checkmark when you're done typing. Change the color of text added to a GIF by tapping what you wrote and slide along the color selector. Pinch the screen to change the size of the text or rotate it.
- Tap “Skip” or “Next,” and when the GIF is done processing it’ll put itself in your conversation, all ready to send. Cool!