[TYPO3] sr_feuser_register and captcha

[Fearless Goblin (Victor Livakovsky)]

Hello to everyone.

I'm using registration extension (sr_feuser_register 2.5.16) with
registration form spam protection captcha extension (sr_freecap
1.0.3).

The problem is, that captcha images generated by sr_freecap are too
large. So i set:
plugin.tx_srfreecap.imageHeight = 60
Then generated smaller fonts with "Windows Font to PHP Font Converter"
- used Arial, Times New Roman and Verdana fonts. Generated *.gdf files
I uploaded to uploads/tx_srfreecap/ and set:
plugin.tx_srfreecap.fontFiles = arial.gdf, tnr.gdf, ver.gdf
The images became smaller and letters too, but now sometimes it's hard
to read generated text.

Is it possible to solve this issue?

Or maybe there is some way to include another captcha extension into
registration form - Captcha Library (ext key: captcha)? I used it with
mailformplus and it generates small and easy to read images.

Thank you in advance.