How does Attachment Library Repository File Limit Size work

Document ID : KB000102403
Last Modified Date : 05/07/2018
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Question:
Even if the File Limit Size is set at 50MB, it allows uploading a file much higher than 50MB in file size. Why is this permitted?
Answer:
SDM enforces the File Size Limit on the compressed file and not the uncompressed version of it.

For example, if a file test.txt of size 60MB is being uploaded, compressed it might just be 1MB in size.  So SDM would allow you to upload the file.
 
Additional Information:
SDM uses gzip algorithms to compress files.