I try the Large data Save in FHIR server in Binary Resource but it's failed 

Methed: Post , URL: fhirservers/fhir/r4/Binary 

I hit the API but the record not save and same API but base64 data length is 3 lac than it's save without faile.

I pass data on this formet

{

  "resourceType" : "Binary",

  // from Resource: id, meta, implicitRules, and language

  "contentType" : "<code>", // R!  MimeType of the binary content

  "securityContext" : { Reference(Any) }, // Identifies another resource to use as proxy when enforcing access control

  "data" : "<base64Binary>" // The actual content

}

I would like to learn about the binary and document reference FHIR Resources. For the PDF data stored in those resources. But I think Binary Resource for the Document PDF stored in FHIR, so this resource is best for it. So sometimes Large PDF 15-page (~35md) data converts into base64 then data length is ~50 lac charecters length of base64binary data. this data store in Binary Resource on data field https://www.hl7.org/fhir/R4/binary.html follow this url this resource used in my case. so it's support the 50 lac charecter of the base64 length? This resource can be Insert into IRIS?