Diminuendo
A scanned score is huge because it stores 256 shades of grey for something that only has two: black ink, white paper. This throws away the greys and keeps the resolution, so the notes come out as sharp as they went in.
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Drag to change how much ink is kept. The crop above updates as you move it, so you can see the effect before converting anything.
Auto
Notes look thin or broken? Go right. Speckled or grey background? Go left.
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