In a similar manner, add multiple layers that you want in your output GIF. If you want to import some transparent images to your GIF animation, you can do so using the File > Open as Layers option.
Another use for PNGs occurs when portions of the image need to be transparent, which can be helpful when making illustrations ...
A Picture Format dialog box will appear. On the Picture tab, under Transparency, drag the Transparency slider or click the spin button to increase and decrease the transparency. Then click OK.
AI can create an image but it cannot take a photograph. Photography has a chance to become more relevant than ever – but transparency is key ...