You can select “Show All Files” to list all the files in a folder. This is different than Selecting “All” in the File Format pop-up menu, which lists all files that Canvas can open. If you highlight a QuickTime movie or Sound file in the list, the pre- view area lets you play a movie or sound preview. In addition, the button below the preview area lets you manage preview images. •   When the button says Create, click it to make a preview for a file that doesn’t have one. •   When the button says Update, the file and its preview are not consistent. Click Update to make the preview match the file. If you need additional help working with files, folders, and directo- ries, refer to your Mac OS or Windows documentation. You can open more than one document at a time in Canvas. When you open a document, Canvas loads the document into your system’s memory. You need to have enough memory available to hold the document’s contents. Documents that contain many complex objects or large high-resolution images require more memory than simple documents. When you work with a document, changes you make to the docu- ment are not saved until you use the Save or Save As commands. Substituting fonts when opening documents If a document you open uses fonts that aren’t available on your sys- tem, Canvas displays a dialog box before opening the document. You can use the dialog box to review which fonts are required by the doc- ument and to select substitute fonts, or you can let Canvas select sub- stitutes. 1 Select a font listed under Original Font, or Shift-click to select multiple fonts. This column lists fonts that are specified in the doc- ument but are not available. 2 Choose a substitute font in the “With” pop-up menu. The name of the font appears in the list under Substitute Font. Canvas displays the font name in its corresponding typeface so you can preview the font substitution. 3 Select the checkbox to permanently replace the missing fonts with the fonts you choose in this dialog box.
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