Aquaruler certainly looks fine but getting it and registering it with the long Codes is not user friendly. Perhaps that's why it is free.
Can't say much more.
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Regards from brianF
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On 17/09/2010, at 6:05 PM, Hamid Haji wrote:

> On 17 Sep 2010, at 03:12, Erik Richard Sørensen wrote:
> [...]
> 
>> The 'bad' thing about FreeRuler is that it hasn't any percentujal enlargement / zooming so it would fit into zoomed pages, - but I do like it despite this missing.
> 
> [...]
> 
> In Aquaruler there are several zoom settings.
> 
> It has been freeware for quite sometime.
> 
> Download:
> http://en.kioskea.net/download/download-3423-aquaruler
> 
> Registration name and serial number:
> http://www.macupdate.com/info.php/id/11147/aquaruler
> 
> 
> Hamid