Previewing Advanced PDF/HTML Templates
The editor for advanced PDF/HTML templates lets you preview templates so you can see how template changes affect PDF output as you're editing a template. You can preview the template from both WYSIWYG and markup source editing modes.

Click the Preview button to generate and display a PDF based on the current template definition. The PDF that appears uses sample data that simulates the real values as follows:
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$9,999.99 represents dollar values.
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6/22/2015 represents a date value in U.S. date format.
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Lorem ipsum represents text values.

If the template can't be previewed, you'll see an error message.