After digital signing a document I get the remark in the top of the screen: "validation of document certification is unknown. the author could not be checked". I asked the company for my signature card and they checked my document with the signature. They told me that there the status of the signature is ok and they can give no assistance for Adobe Acrobat. 4 to 6 weeks before I had no trouble with signing using the same signature card, the same signing procedure of pdf - files with Adobe Acrobat XI, the same pc. I updated the program but I got still the above mentioned remark.
Is there somebody who had the same problem and found a solution?
