option for pure number as password

Hi,

I wonder if an option to cover the choice of numbers as password might
speed things up?

-c0123456789 -n10 -m10

did the trick, but could perhaps be sped up that way?

greetings, el

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Dr. Eberhard W. Lisse \ / Obstetrician & Gynaecologist
el@lisse.NA / * | Telephone: +264 81 124 6733 (cell)
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Dear Eberhard,

As far as I am aware, there is no significant speedup that can be made based on specific character-group-modes (such as all numbers). There is really nothing special about numbers or characters when in comes to the password for a PDF and precomputing for common groups is not feasible due to various factors that always are unique for the PDF (such as document ID).

The solution you suggested of limiting the character set and length is the correct one for these cases.

Kind Regards,
Henning