in draw I have a 6 page document but it only lets me see 1 page I may of clicked on something and now cannot see the whole document

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You may have accidentally …

… hidden the side panel

The side panel (chooser on the left side of the Draw window) is where you see, and change between, the Draw pages (or “slides”). Is that what you are missing?

  • The side panel may be minimized or disabled.
  • To enable it: Menu item View - Side panel
  • To pull a minimized panel back into view: click the dark field with a small triangle (right arrowhead) on the middle of the left window frame.

… changed to “slide master” view

The slide master is a sort of background page with content to apply to all your slides. It supports fields, and is conceptually similar to headers/footers in a Writer document.

  • Change to normal view with View - Normal

… opened a new file.

  • Pull down the Window menu.
  • If you see multiple ... LibreOffice Draw entries, you have multiple drawings open.
  • Select them in turn to see contents.