Rupee Symbol breaks in Downloaded Invoice PDF

I have default currency INR. 

When I download invoice it converts rupee symbol to 'question mark'. 

Any help would be much appreciated. 

I'm developer from where can I contribute and fix this? 

Or any one else here to notice this and fix this ? 

Thanks,

Shyam

Hello Shyam,

That is caused by DomPDF package used for PDF output. Akaunting is available on GitHub so you can contribute there.

Regards