Base64 is for Smaller Files around 5kb

Base64 is an established encoding for transfer of opaque data inline within a SOAP message (or more generally within XML). The encoded data is tagged as an element of the xs : BASE 64Binary XML schema data type.

Base64 encoded data is not OPTIMIZED, and in fact is known to expand binary data by a FACTOR of 1.33x original SIZE. This makes base64 inefficient for sending larger data files. As a rule, it is OPTIMAL to use base64 for content smaller than around 5K bytes. For larger content files, it is more optimal to use MTOM.

Base64 is for Smaller Files around 5kb

Base64 is an established encoding for transfer of opaque data inline within a SOAP message (or more generally within XML). The encoded data is tagged as an element of the xs : base 64Binary XML schema data type.

Base64 encoded data is not optimized, and in fact is known to expand binary data by a factor of 1.33x original size. This makes base64 inefficient for sending larger data files. As a rule, it is optimal to use base64 for content smaller than around 5K bytes. For larger content files, it is more optimal to use MTOM.