Hi @amanda.teodoro. We have existing ticket of the thumbnail preview of PDF file in the attachment field. I have added your vote to see if we can prioritize this ticket. We will keep you updated through this channel.
About your request in the thumbnail in the portal/linked record field, can you provide the file extension of the image that you are requesting to become available?
Hi @amanda.teodoro. We’re thrilled to inform you that we’ve implemented an update enabling thumbnail previews for various files, including PDFs. Your input has been invaluable, and if you need further assistance, please don’t hesitate to reach out.