Hello:
To conclude this thread, when I finally received the
screen (only) protector for the Pocketbook Inkpad 3 discovered that it's aprox 2mm wider than the actual Likebook Mars screen width.
So, to properly install it, this particular product will require very delicate and precise trimming along the long (tall) side
before aplying it to the Mars' screen; it should be possible as the film corners are squared, not rounded.
If you can achieve that trimming without otherwise damaging the film, then I would certainly recommend it over the
Good Ereader product for the already posted reasons.
If you can't or wont do the trimming... then do stick with the Good Ereader product.
Thank you all for your help and attention!
[INCANUS]