Daylite offers you the possibility to link files in Daylite, here one must consider two possibilities to store the data:
Save an attachment as a copy of a file to Daylite
The file is stored within your Daylite database itself. This has the advantage that the file is immediately available for all Daylite users without having to manage a share for all Daylite users on a file server. Depending on the size and number of files, this can greatly increase the size of your database.
Save an attachment as a reference to a file
The file will remain in its original location and Daylite will only store a link to that file. It must be ensured that all users who are to access this document need access to the location (for example, AFP sharing, shared Dropbox, or similar). Otherwise, Daylite will display an error message when trying to open the file reference.
Please note: If you remove the file from the location Daylite won't be able to find it again.