[jira] [Commented] (TIKA-3005) Unintelligible text content from PDF file

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[jira] [Commented] (TIKA-3005) Unintelligible text content from PDF file

Markus Jelsma (Jira)

    [ https://issues.apache.org/jira/browse/TIKA-3005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16990324#comment-16990324 ]

Tilman Hausherr commented on TIKA-3005:
---------------------------------------

What we'd need is a gibberish detector. That won't go positive on a math formula or on "foreign" text.

Another idea, don't know if possible: instead of classic OCR, do OCR on the glyphs individually and reconstruct the table. To see what I mean open the resume4 file wih PDFBox PDFDebugger and look at {{Root/Pages/Kids/[0]/Resources/Font/F1}}. Imagine we reconstruct the "Unicode Character" column by OCRing the "Glyph" column.

> Unintelligible text content from PDF file
> -----------------------------------------
>
>                 Key: TIKA-3005
>                 URL: https://issues.apache.org/jira/browse/TIKA-3005
>             Project: Tika
>          Issue Type: Bug
>    Affects Versions: 1.22
>            Reporter: Jorge Spinsanti
>            Priority: Major
>         Attachments: file1.pdf, file2.pdf, file3.pdf, resume_4.pdf
>
>
> If I get text content from attachment, Tika doesn't fail but the content is unintelligible



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