Transferring text files to CP/M ?

When writing text files intended for a CP/M environment, I've been
padding them with $1A characters such that the length is a multiple
of 128 bytes.

Is this necessary - or will CP/M emulators and/or file transfer tools
automatically do this?  I know MYZ80 pads with $1A.  Is that true of
others?

As a compromise I was considering terminating such files with a single
$1A character.  That should at least avoid problems with 'junk fill'.

Any observations or thoughts?  Thanks.