Pectic enzyme use in Blackberry JUICE

I pressed out my blackberries and discarded the skins....
Should I still opt to use pectic enzyme?
If so, pre or post fermenttion?

(I wanted to keep & ferment on the skins but the freezer was full and the berries were ripe... but the pectic and other supplies had not arrived yet, so I tried to buy time (and space) by gentle processing... now the supplies are here but the remaining unpicked berries are not healthy and plump & all I have left to work with is the previously pressed juice. Of course, there is a layer of (insert correct term here so I will know what to call it) on the bottom in ea. of the bottles.)

Yes use the pectic enzyme, it helps in the clearing and use it pre fermentation.

OK, Thanks Julie