Friends, do you know how to set up the mathematic OFD reader to display a cross when the seal verification fails? Today I will explain how to set up the mathematic OFD reader to display a cross when the seal verification fails. If you are interested, come and watch with me. Have a look, I hope it helps everyone.

Step 1: Click "Mathematics OFD Document" (as shown in the picture).

Step 2: In the "Mathematics OFD Document" window, click the "Preferences" button (as shown in the picture).

Step 3: In the "Preferences" window, click "Digital Signature" (as shown in the picture).

Step 4: In the "Digital Signature" window, find "Seal" (as shown in the picture).

Step 5: In the "Seal" column, check "Display a cross if seal verification fails" (as shown in the picture).

Step 6: Click "OK" (as shown in the picture).

The above is the entire content that the editor brought to you on how to set the cross mark to be displayed when the seal verification fails in the mathematical OFD reader. I hope it can help you.