Add the PNGs you want to convert by dragging them over from your computer, or click the Import button to bring them over from various online sources including Google Photos and Dropbox. 

If you need some inspiration, you can use the Stock tab to browse through a library of copy-right free images that you can use in your projects.

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To convert your PNGs to GIFs, double click on them in your personal library to add them to the Timeline. If you’re trying to combine multiple PNGs into a GIF, make sure to order them chronologically. 

You can drag on the edge of an image in the Timeline to control how long it will show up on the screen. To make images brighter or clearer, select them and use the sliders in the Effects tab on the right side of the screen.

If you want to add a transition between your PNGs, make sure they overlap a little on the Timeline and then select one from the drop-down list. Add motion titles or static text using the Text tab on the left side of the screen.

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When you’re done, click the Export button in the top right corner. Under Save file as, select GIF and then click on Export and download. Flixier will take a couple of minutes to convert your PNGs to a GIF and then it will be downloaded to your computer.