[ 
https://issues.apache.org/jira/browse/PDFBOX-4026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Tilman Hausherr closed PDFBOX-4026.
-----------------------------------
    Resolution: Not A Bug

Closing as there was no further reaction.

However I was able to find the file so I can tell why it doesn't work:
https://www.degruyter.com/downloadpdf/j/math.2017.15.issue-1/math-2017-0093/math-2017-0093.pdf
the math symbols can't be extracted because the font is incorrect. This can be 
seen with PDFDebugger, by looking at 
{{Root/Pages/Kids/\[0]/Kids/\[0]/Resources/Font/F46}}. Adobe can't get them 
either. You'll have to use OCR. I tested on the line "Let p be a prime number" 
near the bottom of the first page.

> Mathematical Symbols
> --------------------
>
>                 Key: PDFBOX-4026
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4026
>             Project: PDFBox
>          Issue Type: Bug
>          Components: FontBox
>    Affects Versions: 2.0.0
>         Environment: windows
>            Reporter: nithyaic13
>            Priority: Minor
>         Attachments: PDFTest.java, filename.txt
>
>
> I need to display mathematical symbols in pdf to xml



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