I tested the OCR switch instead of trusting its label
An OCR checkbox is easy to overinterpret. I see it next to a PDF extractor and assume it will recognize the page again when the existing text is broken. That assumption deserves a test. In a controlled example this week, enabling the checkbox produced exactly the same damaged text as disabling it. The tool reached its completed state both times. The Chinese sentence I needed did not return. The…
The author conducted a test to determine if the OCR switch in a PDF tool replaced a damaged text interpretation with a new reading. They created a synthetic one-page notice containing Chinese and English text, including dates and deadlines. By comparing two copies of the notice with different PDF mappings, they found that the OCR switch did not replace the missing Chinese text.
The browser tool, ImgIng, confirmed this result through image recognition. The author recommends using native extraction when it is correct or a separate image-recognition step when the native extraction is incorrect and a clear page image exists. They advise checking the OCR option in the PDF workflow and not relying solely on the presence of a checkbox or completion badge.
Written by urgent.news from Dev.to's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.