Change a presentation thumbnail image

The thumbnail image for each presentation should be 520x260 pixels.

If you upload a static file, Mobile Locker will generate a thumbnail image from the first page, cropping, if necessary, to 520x260.

If you upload an HTML presentation, your ZIP file should include a 520x260 JPG or PNG image named presentation.jpg or presentation.png at the root of the ZIP file.

Then you can select or change the thumbnail here: