HTTP request - put file on (sharepoint) drive MS GRAPH

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HTTP

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request

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hi,

I am trying to put i a file on a sharepoint drive with MS GRAPH.
it works for text files but other files get changed - result file corrupt
its with a FMIS program, i only have some sort of lowcode i can use

when i check the data of the upload file some characters are changed / added

What I have tried:

I upload the file.
open / convert the file to a stream.
then i use the command HTTPREQUEST.

<Command Name="PUT FILE" CommandName="HttpRequest_Execute">
            <Parameter   Name="Credential"       Direction="In"      Value="SHAREPOINT" />
            <Parameter   Name="HttpHeaders"      Direction="In"      Value="Content-Type:application/pdf" />
            <Parameter   Name="Method"           Direction="In"      Value="PUT" />
            <Parameter   Name="PostData"         Direction="In"      Value="${FileStream}" />
            <Parameter   Name="Url"              Direction="In"      Value="https://graph.microsoft.com/v1.0/drives/driveid/items/root:/${FileName}:/content" />
            <Parameter   Name="ResponseData"     Direction="Out"                                                                                                                                                         OutputProperty="${WebResponseData}" />
            <Parameter   Name="ResponseStatus"   Direction="Out"                                                                                                                                                         OutputProperty="${WebResponseStatus}" />
        </Command>

When i execute the command i get this result:

Request:
POST /v1.0/drives/driveid/items/root:/0.pdf:/content HTTP/1.1
Content-Type: application/pdf
Host: mytest.sharepoint.com
Connection: Keep-Alive
'file_content'