Adobe Reader or Acrobat displays a At least one signature has problems message when signed PDF is opened - Foxit PDF SDK

Adding the certificate that was used to apply the digital signature into Adobe's list of Trusted Identities by some easy steps.

At least one signature has problems Error in Adobe Reader

Digitally Signing Adobe PDF Documents

How could I access the Fill & Sign feature in Foxit PDF Reader 11.2.1 and other newer versions of the V11.x series? – Help Center

How to apply one PDF Sign signature to the same position on multiple pages – Help Center

There are some errors in the formatting or information contained in the signature. – Help Center

Issues uploading documents: common errors, causes, and solutions

Solved: At least one signature has a problems - Adobe Community - 10205267

How to Sign a PDF document using Foxit Reader

FoxIt message At least one signature has problems, cannot edit the .pdf – Rocky Mountain Human Services

Solved: Use of extended features is no longer available on - Adobe Community - 8342169