Support backup and exporting chats including images and paintings

[torse]

Please support encrypted backup and/or an export of chats to unencrypted formats such as HTML or PDF including images, gifs, and paintings.

I have a really important chat that I like to preserve after moving to a new device. A full backup of all text, images and paintings does not seems to work from one device to another.

As the backup / restore is not supported between devices, an export to an unencrypted format such as HTML or PDF would also preserve my chats but that seems to not supported at all.