Ddefaulto2ud8pxxo9ljParticipantForum|Forum|4 years agoMay 18, 2021Questionevery pdf file covered with black square gridsForum|Forum|4 years agoMay 18, 20212 replies721 viewsEvery pdf file from any source when I open it and click with the hand tool will be covered with this grid square boxes , when i press tab ir goes away and comes back when i click anywhere. pretty much tried every prefernce from the edit but no luck.View PDFEdit and convert PDFs