Created attachment 111797 [details] PDF file not able to read the content in Okular, but can be read in adobe reader. Not able to read the content.I am attaching the document.The same document can be read in adobe reader.
You're using an ancient version of Okular (and likely poppler, too). Please see https://community.kde.org/Get_Involved/Bug_Reporting#Step_2:_Make_sure_it_hasn.27t_already_been_fixed The attached PDF displays for me just fine using Okular from KDE Applications 17.12. I even see the digital signature watermark.