@edsu https://www.tbray.org/ongoing/When/202x/2023/10/28/C2PA-Workflows and this thread https://cosocial.ca/@timbray/111302202917074932 explains a lot of things

meanwhile in Italy: during a test, the computers were unable to open the PDFs, and approximately 900 candidates were sent back home.
https://www-ilpost-it.translate.goog/2023/10/30/sna-concorso-pubblico-scuola-nazionale-amministrazione/?_x_tr_sl=it&_x_tr_tl=en&_x_tr_hl=it&_x_tr_pto=wapp

ciao @wtfpdf !