How to fill the empty spaces of the PCB

how can I fill in the blanks of the PCB?

Not sure what you mean by this, can you provide a screenshot?

fill space so that there is little copper corrode with acid.

Ah! Click on Routing and then Ground Fill. :smile:

perfect !!! :stuck_out_tongue:

I am not able to understand your question. Can you please tell me about which empty spaces you people are discussing.
I am also a PCB designer and always found some problems during its fabrication.
Please describe your problem so that i could also get the idea about it.

surface mount assembly

all right. solved: Click on Routing and then Ground Fill

I think you should make your design type more compact:joy_cat: