Is there a way to minimize the size of .pqb dictionary files?

[Cameroon]

Hi,
I've compiled a dictionary in Pleco in pqb format, its size is more than 440 Mb (while the original txt was only ~70 Mb).
Is there a way to make it smaller?

 

[mikelove]

Not at the moment - it should shrink pretty well if you .zip it though.