Pin attachments allow you to share rich content with your peers. To add an attachment click Add Content then Attachment. There is a 100mb size limit on attachments and only 4 files can be added per Pin.
Accessing Attached Files
Any file attached to a Pin in Yellowdig is uploaded and compiled under the Files tab. If you can not easily find a file that you are looking for in the feed or you want to download multiple files, it may be easier to find and download them through the “Files” tab on the ribbon.
Hitting the file name in the list will start the download process.
To remove Files from the File list, you can delete the content from the relevant Pin and refresh the page.