Whats a Good PDF Editor Software for Languages with Different?

What's a good PDF editor software for languages with different writing systems than English (Arabic for example)?

Yes, you could. Arabic as a writing system is very flexible and has been used to write Spanish, French, Afrikaans, and Greek (see Arabic script - Wikipedia), among many, many, many other languages. One could argue that a lot of English words are already being written regularly in Perso-Arabic script, for example loanwords from English in Urdu or Punjabi, among other languages. Take a look at the Urdu Wikipedia page for “Computer” — کمپیوٹر (kampyūṭar) — and see how many other English loanwords you can spot. Note in particular the letter پ for the /p/ sound, which is not used in Arabic, but which is obviously derived from the Arabic letter ب for /b/. In the same way it is entirely straightforward to add diacritics to other common letters to derive new letters for additional consonants. Representing all English vowels in Arabic script is a bit trickier. One typical approach is to use vowel diacritics combined with additional letters for semivowels to denote larger vowel inventories. In Urdu the letter for /j/ has been split into “small” ی and “large” ے‬ in order to distinguish the /i/ and /e/ sounds (among others). English tense/lax vowels could be mapped to the conventional way of writing long/short vowels in Arabic, Urdu, and so on. Diphthongs could be written as sequences of vowel plus glide. There is also an additional easy way out. don’t worry about writing all vowels precisely, just aim for having enough information to allow a competent speaker of English to easily figure out the pronunciation of a word in context. You’d end up with a more or less straightforward way of writing English phonemically in Arabic script, just like you can already write English phonemically in your favorite phonetic alphabet. That would make it very different from conventional English orthography, which has kept distinctions in its spelling that still differentiate words with identical modern pronunciations, for example modern homophones like might and mite. On the other hand it would be easy to reintroduce additional written distinctions in order to keep English homophones (such as cite, site, sight) looking different in writing. you could write these with different letters for the /s/ sound (س‬ vs. ص‬), or add a silent غ‬ corresponding to gh in sight. To summarize, it would be easy to come up with a practical Arabic-based orthography for English, if desired, and there are plenty of precedents to draw on.