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Preserving Notary Stamps and Signatures When Converting Scanned Legal Documents to Editable Word

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Scanned legal documents mix editable typed text with graphic authenticators such as notary seals, watermarks, and handwritten signatures, which is hard to convert. Conventional tools often rasterize pages into images that cannot be edited, while standard OCR misreads curved stamp lettering and injects garbled characters into clauses. Some desktop tools use floating text boxes with white fills that hide underlying seals and watermarks, making the document legally unusable. The article proposes a dual-layer approach that separates a reflowable, fully editable paragraph layer from a graphic overlay layer holding stamps and signatures. Color-based filtering is used to segment colored ink and stamp strokes from black toner text, so authenticating marks can be preserved as transparent overlays.

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