IF the image is in GIF format, I recommend converting it to PNG because they're similar, but PNGs will usually be smaller in file size.

如果图像是GIF格式的，建议先把它转换成PNG格式，他们是类似的，但是PNG格式文件比较小。

youdao

It is very possible that the GIF image will display just fine in your browser even though a GIF is a binary file type.

尽管GIF是二进制文件类型，GIF图像仍然很可能在浏览器中正常显示。

youdao

Note that the ringtone should be in RTX format (a XML file that contains the ringtone name and the definition of the ringtone) while the image should be in JPEG, GIF or PNG format.

发送铃声和图像。请注意，铃声应为rtx格式(一种包含铃声名称和铃声定义的XML文件)，而图像应为JPEG、GIF或png格式。

youdao

Other tweaks suggested by the report include using the .jpeg image format instead of other file types like .gif and .png.

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CloudOn also provides Adobe Reader to view PDFs - everything from simple forms to complex 3-D documents - and a universal viewer for any file, ranging from raw Photoshop images to everyday image files, including: PNG, JPEG and GIF.

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