Reknitting garment length after cutting to shorten

I cut 2" off the bottom edge of a bunting in an attempt to redesign it into a sweater. I wish to put the 2" back on and want to know how this can be done. The edge in in [B]seed stitch.[/B] I didn’t know that it cannot be “unraveled” because I will be working from the top to the bottom.

What you can do is run a lifeline or circular needle through one row of knitting above where you want to cut. That will secure the stitches.

Then cut off the bottom, pick out the extra bits, and start knitting.