This paper proposes a transition from word-level OCR to line-level OCR to overcome the limitations of conventional character-level OCR . Conventional character-level OCR is prone to errors during character segmentation and has limited the utilization of language models. Word-level OCR addresses these issues, but it also suffers from the potential for errors during word segmentation. Therefore, this paper proposes line-level OCR, which overcomes the limitations of word-level OCR and avoids word detection errors while providing a broader context for sentences, thereby enhancing the usability of language models. Furthermore, we present a new dataset (251 English page images) for line-level OCR. Experimental results demonstrate that the proposed technique improves accuracy by 5.4% and efficiency by fourfold compared to conventional word-level OCR.