A Chilkat customer is signing PDFs and then validating using the online tool at https://ec.europa.eu/cefdigital/DSS/webapp-demo/validation A few errors/warnings were encountered: 1) “The signature is not intact”.   <b>This error only happens if the “ltvOcsp” option was set</b> to create an LTV-enabled signature.  The source of the “Signature is not intact” error can be found here:  https://github.com/esig/dss/blob/master/validation-policy/src/main/java/eu/europa/esig/dss/validation/process/bbb/cv/checks/SignatureIntactCheck.java When “ltvOcsp” is specified (i.e. … Continue reading Validating PDF Signatures with https://ec.europa.eu/cefdigital/DSS/webapp-demo/validation