[jira] [Commented] (PDFBOX-1017) Some Ligatures in a PDF file are not recognised.

["Andreas Lehmkühler (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PDFBOX-1017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13038684#comment-13038684 ] 

Andreas Lehmkühler commented on PDFBOX-1017:
--------------------------------------------

I checked the pdf and came to the conclusion that everything works fine.

The first ligature on the first page uses the font with the internal name F3.8 (LinLibertine) at a size of 12. The charactercode is 2F:

/F3.8 12 Tf<2F>Tj


The font uses an embedded ToUnicode-mapping as follows:

13 beginbfrange
.....
<2d><30><e039>
.....

So that 2F is mapped to e03b and that's exactly the described result.

I'm sorry, but the pdf doesn't provide any reasonable mapping for those ligatures



> Some Ligatures in a PDF file are not recognised.
> ------------------------------------------------
>
>                 Key: PDFBOX-1017
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-1017
>             Project: PDFBox
>          Issue Type: Improvement
>          Components: Text extraction
>    Affects Versions: 1.6.0
>         Environment: Mac OS X 10.6.7, java version "1.6.0_24"
>            Reporter: Thomas Fischer
>              Labels: textExtraction
>         Attachments: Ligatures.pdf, Ligatures.txt
>
>
> In the attached file, some ligatures (Qu, Th, ch, ck, fft, ft, tt) are not transformed but remain in the text with Unicode characters in the private range UE0xx: "...im rabbinisen Sritum in untersiedlien Kontexten und dort,..."

--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira