[jira] [Commented] (TIKA-713) Tika can not parse all of the persian pdf files

["Ali Majdzadeh Kohbanani (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TIKA-713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13478353#comment-13478353 ] 

Ali Majdzadeh Kohbanani commented on TIKA-713:
----------------------------------------------

Ahmad,
Could you please explain how Complex.pdf is generated? What tool is used in order to create the file? The fonts? Any specific configuration, etc. I have tested PDFBox in order to extract text from Complex.pdf and it performs very well. By contrast, any other PDF file that I test for text extraction using PDFBox have lots of errors. I have tested creating PDF files using PDFCreator and "Save as PDF" plugin in MS-Word. In the first case, the extracted text contains only junk characters and the latter some glyphs and ligatures are extracted wrongly. I have filed a bug report for PDFBox but in order to further testing PDFBox, I would like to know more about the method used in order to create Complex.pdf. Thanks a lot.
                
> Tika can not parse all of the persian pdf files
> -----------------------------------------------
>
>                 Key: TIKA-713
>                 URL: https://issues.apache.org/jira/browse/TIKA-713
>             Project: Tika
>          Issue Type: Bug
>          Components: parser
>    Affects Versions: 0.9
>            Reporter: Ahmad Ajiloo
>         Attachments: Complex.pdf, ebrat.pdf, Simple2.pdf, Simple3.pdf
>
>
> Hello
> I used Tika (of course in Nutch) to parse some persian pdf files. some of the files clearly transformed to a plain text. but about some of them, output was corrupted. I used ICU4J v4 library and the text changed to right-to-left mode. but the mentioned problem didn't resolve. insofar as Tika can not understand any charachter of input persian pdf file!
> {quote}
> I copy this text from my pdf file via Document Viewer in Linux: this is a clearly persian text !
> --------------------------
> ‫هر روز پس از نماز صبح، سوره مباركه الرحمن را تا "فباي آلاء ربكما تكذبان" بخواند.‬
> ‫) اين يعني 21 آيه اول سوره ، كه در قرآن رسم الخط "عثمانطه" تقريبا يك نصف صفحه است. (‬
> ‫همچنين در روايات از حضرت رسول )ص( و ائمه اطهار )ع( آمده كه چند چيز براي قوت حافظه مفيد است:‬
> ‫1- مسواك كردن 2- روزه گرفتن 3- قرائت قرآن؛ مخصوصا آيه الكرسي‬
> ‫4- خوردن عسل‬ ‫5- خوردن عدس 6- خوردن گوشت نزديک گردن
> --------------------------
> Tike returns this output !
> --------------------------
>  92   @A   8 * B
>    C9D  !D       ) (?)   =/
>    >
>  
>  (<) ,    8 ;  
>  8 #
>    +  9!: 
>      L
>   #)    4   M() * 0>
>  * -3    IA J  
>   - 2   (+   G
>  H  -1
>  (+ J 5#+C     0T J (+  O - 6    R . (+  O - 5     PH. (+  O -4
> --------------------------
> {quote}
> thanks a lot

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