Transferring data between internal tables with different line length

Hello,

I am almost positive that I have seen a function module which will transfer data from one internal table to another internal table of a different length.

For example, I have an internal table storing the contents of a binary file. The line length of this table is 300. I need to move it to an internal table with line length 255 so I can use it with the function module SO_NEW_DOCUMENT_ATT_SEND_API1.

I realize that this is not an impossible task to accomplish within my ABAP program, but if the code's already there ....

Does anyone know this function module?

Regards