Upload the PDF to Google Drive, open with Google Docs. Google will attempt OCR (Optical Character Recognition). It will be messy for Arabic script, but you can copy-paste individual words.
Kitab Al Ayn (كتاب العين) – "The Book of the Letter 'Ayn" – is widely considered the . Its name derives not from the Arabic word for "eye" (though it shares the spelling), but from the phonetic classification system invented by its author. Al-Khalil (c. 718–786 CE) organized Arabic sounds from the deepest, most guttural sound (ʿayn, ع) to the lightest labial sounds (mim, meem, etc.). Kitab Al Ayn English Pdf
Let’s clarify:
Therefore, any "Complete Kitab Al Ayn English PDF" found on file-sharing sites (like Scribd or unverified torrents) is almost certainly one of three things: Upload the PDF to Google Drive, open with Google Docs
by C.H.M. Versteegh is a key English resource for understanding the text's history and authenticity. Kitab Al Ayn (كتاب العين) – "The Book
: Unlike modern dictionaries, it is not arranged alphabetically (A-Z). Instead, al-Farahidi organized it by the points of articulation (makharij) in the human throat and mouth.