Viewsonic CDE5501-TL 사용자 설명서
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3.1.1.15 Undo
Click
to undo previous operation.
3.1.1.16 Redo
Click
to restore previous operation.
3.1.1.17 Previous Page
If current page is not the first page, click
to switch to previous page.
3.1.1.18 Page Thumbnail
Click
to view all file page information.