We're confronted with the need to OCR arabic documents and i guess that Laserfiche uses Omnipage SDK , i'm not sure.

Here's a comparison table which shows he features of each SDK version. 
https://www.nuance.com/content/dam/nuance/en_us/collateral/imaging/comparison-chart/NDI_344_OmniPage_CSDK_v19-v20.2_Final.pdf

Here we can see that SDK 19.2 and higher include Arabic OCR Engine,  i wonder if Leserfiche will include it in the near future, and offer the possibility to use Arabic OCR Engine for Arabic speaking clients.