Change a presentation thumbnail image

The thumbnail image for each presentation should be 260x120 pixels.

If you upload a static file, Mobile Locker will generate a thumbnail image from the first page, cropping, if necessary, to 260x120.

If you upload an HTML presentation, your ZIP file should include a 260x120 JPG or PNG image.

Then you can select or change the thumbnail here:

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Last updated on February 21, 2023