Adding seam allowance on PDF printouts of old patterns

Hi there,

Quick question, just need to know whether I've done things the hard way or not.

I've used old paper patterns without seam allowance on them before, but this is my first time using a PDF I've had printed. Pattern is old with no seam allowance. My instinct was to draw the seam allowances onto the paper pattern before cutting it out, but now the paper is pinned to the fabric I think I just did all that faffing with the paper for no reason.

Should I have cut the paper pattern out on the line, then traced the outline onto the fabric (like you would do with an old paper pattern) and then added and drawn seam allowances directly onto the fabric instead?

Thank you