Signed PDF has validation error Estimated reading: 1 minute 71 views Cellosign PDF documents are generated with Electronic signatures compliant with the Israeli law for Secured electronic signature, dated 2001. In case Secured electronic signature is not installed on the station were viewing the document then the PDF might have a ribbon that reads “At least one signature requires validation”. The image above is in Acrobat reader. Different PDF apps might behave differently. This post is to assure you that the validation notice is in place and your document is compliant with the law. If you wish however to install and validate your certificate, click on the signature, click “Show signers certificate”, click “Trust” tab and “Add to trusted certificate”. Once done, reopen the document and you should see this ribbon FAQs - Previous How can I send a form to the client?
