https://experienceleague.adobe.com/docs/experience-manager-learn/forms/adaptive-forms/form-data-model-to-post-binary-data-tutorial-use.html?lang=en this FDM allows you to post attachments
https://experienceleague.adobe.com/docs/experience-manager-learn/forms/interactive-communications/merge-data-with-ic-template.html?lang=ensee if this helpsif not we can get on a call
I don’t think you can download AEM from that site, only the service packs are available theredo get trial version of AEM you will need to contact Adobe sales/ account manager