* If you have downloaded a PDF document, but there are erroneous blank sections, your PDF viewer may have compatibility issues or be missing certain font characters. * **Does your device use the Macintosh operating system?** * The default pdf viewer in macOS is an app called “Preview”, which doesn’t alw…
* Participants and raters cannot change answers on a survey once it has been submitted. However for some surveys, and in certain special cases, your survey can be unlocked by a Client Support Specialist allowing you make changes and resubmit.