Problem
Content flashes when zooming in and out of a PDF file in the viewer. Data in the file might also change. Output might be incorrect when the file is printed or downloaded.
Cause
If a customer covers old data in a file using a dynamic input box or text box (such as the Adobe Text Box tool), the element is rendered as an HTML element and is not part of the file. As the file is rendered in the viewer, the HTML element might disappear and reappear. This causes flashing and the appearance of old data under the element.
Solution
Remove any old data in the file without the use of a dynamic input box or text box.