What media can I attach to a post, and how large can it be?

Posts support one image or one video attachment. Images are automatically converted to WebP and resized to keep pages fast. Videos are queued for processing and appear in the post once processing is complete; you will see a “Video is being processed” placeholder until then. The exact size limits are configured by bolmol.com and shown in the composer if you exceed them. If a file is rejected, the composer tells you why.