Fix broken line breaks in text copied from Japanese PDFs
Quiet Works Lab
Text extracted from Japanese PDFs often breaks in the middle of sentences and carries page numbers such as － 1 － and the same header on every page. This task joins the broken lines back into sentences, removes page numbers and headers repeated near page breaks, and normalizes the characters; paragraphs and lists stay separate. Joining and header removal are guesses: check the result.
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Output fields
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The PDF line break task joins a line with the next one when the sentence continues. It never joins after 。 or ：, before a list item or heading, or after a short line, and it needs at least one long line in the document.
The PDF line break task removes lines that are only a page number, such as － 3 －, and short lines that repeat at least 3 times near page breaks, such as a running header. This step is off by default in the Actor and on in this task.
No. The PDF line break task cleans text that was already extracted, for example by a PDF text extraction Actor whose output dataset you choose as the input.