Do You Have an Attachment File Size Limit? Jodie Baer March 28, 2019 03:40 Updated The size limit of each image uploaded into Loopio is 3 MB. Other documents have a file size limit of 10 MB each. Related articles What Is a Magnet Attachment? Getting Started: Admin Can I Search and Replace Words and Phrases in My Library? Can I Rename, Replace, or Delete an Attachment in Multiple Library Entries?