Browsing image previews

The file can be viewed in a larger size.
The size and quality of the preview image depends on the format of the original file.

: Move to the previous/next material.
: Larger view. You can make the PDF file larger or smaller or rotate it.
: Show the pages of a multi-page PDF file
: Browse the pages of a multi-page PDF file.
: Show the preview of a multi-page PDF file.

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By clicking an image in preview, you can enter the presentation mode.
In the presentation mode, the materials can be rotated and zoomed.