Clearly the word has spaces to its right side (do a ltrim and rtrim on the word - not sure how you will do that for Arabic thou) - if this is a regular pdf generated out of jde then you should be able to code the ltrim and rtrim in the Event rules.
or since Arabic is written from the left maybe Oracle defaults the words to assume left alignment (and hence running to the length of the field). This could make sense too. Check with Oracle folks how Arabic works. Just a thought.