I don't know of a way to download them as a batch. But go to https://www.livejournal.com/allpics.bml (it will give you your LJ userpics page), then, one by one, right-click on each picture and select "Save Image As", and save it to where you want to keep it on your machine. Then go to https://www.dreamwidth.org/manage/icons (again, it will automagically go to your account), and upload them to DW as you wish.
Incidentally, I'm still on LJ, but I originate all my posts on DW and auto-crosspost them. I, too, still have friends who are only on LJ.
![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
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Date: 2017-12-02 12:27 pm (UTC)Incidentally, I'm still on LJ, but I originate all my posts on DW and auto-crosspost them. I, too, still have friends who are only on LJ.