There is a 200MB limit per upload / attachment on every post. That said, you can attach as many files or images to a single post as you'd like.
What types of attachments can I use on Patreon?
.png |
.jpeg |
.mp3 |
.mp4 |
.gif |
.aac |
.m4a |
.mpeg |
.ogg |
.wav |
.wma |
.x-m4a |
.x-wav |