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Old 03-26-2019, 04:50 PM   #1
Momaiz
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Exclamation pdf to epub with arabic letters not in current position

Hello Bro ,

Thank you for calibre it's very good addons for ebooks and developers

I have small problem in arabic

I'm using Calibre ebook to extract pdf files to epub ebook but the text after convert , [ and reveresed again because it was auto reversed ] , not same as in the main pdf text

Lets say the pdf text is

لمياء السعيد

the calibre result after i reversed it was

ملياء السعيد

Here's the different in word

لمياء

ملياء

This Happened in many text in pdf

I used calibre to convert like

exec('ebook-convert '.$pdffile.' '.$new_epub_file ) ;

the wrong letters placement is in this step the result here is like

ءايلم (wrong and reversed)

after reversed with php the result is

ملياء ( wrong letters placement )

I tried to use

--disable-font-rescaling --mono-family --keep-ligatures --change-justification

All failed

after some search i see some answers say embed font support arabic but it failed too

also in the browser when reading the pdf

the word apper fine "لمياء"

but if i tried to copy it to clipboard it copied as "ملياء"

How to fix this problem with arabic letters
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Old 03-26-2019, 06:27 PM   #2
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Here's image from the main pdf file

https://f.top4top.net/p_1180dw23n1.jpg

i think the problem is in font style it self and how calibre readed it

I mean the error here is

ملياء

the true string

لمياء

لمياء is the true string in arabic

but if you check this image you will find that the font style make

م
apper before
ل

please check the image

and when calibre readed it readed it wrong ?? is that true


there's many examples like

المسيحية true string but it apper in calibre as
املسيحية

also

في true string but it apper in calibre as

يف

any suggestions please ??
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Old 03-26-2019, 11:49 PM   #3
Sarmat89
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Did you mean
ةيحيسلما
instead of
املسيحية?

In that case you need to convert the PDF yourself, with some advanced PDF converter that support Arabic reordering.
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Old 03-27-2019, 07:46 PM   #4
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Not same word

i mean the pdf word is
المسيحية

the calibre output is

ةيحيسلما

after i reverse every word the result become

املسيحية

this is not the main pdf word

----------

after some work i think the reason was the font of the pdf

some arabic fonts draw letters not in same position "please check the draw of word لمياء in the picture link"


---------

I tried to edit one pdf on my pc example word was :"لمياء"

when i changed the font of paragraph the word changed to " ملياء "

it's wrong before convert from calibre i think ??

i used this apps to edit in my pc

foxit advanced pdf editor

pdf element 6 pro

what's your opinion ??
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Old 03-27-2019, 10:34 PM   #5
kovidgoyal
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https://manual.calibre-ebook.com/con...-pdf-documents
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Old 03-28-2019, 03:05 PM   #6
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Quote:
Originally Posted by kovidgoyal View Post
Thank you for answer Kovidgoyal "Owner of Calibre"

But i should tell you that my idea was true and finally i got perfect example after changing the font .

Basically . in PHP there was a library called "TCPDF" it support creating PDF from html

https://tcpdf.org/examples/example_018/

in this link this library make ability to create PDF from Arabic and Persian text

I Used this library in previous wordpress project to create pdf from arabic text in wordpress editor

please check attached images and pdf

used font like in tcpdf example was "aefurat" font

-----------

That was Cool
Attached Thumbnails
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Name:	arabic-text-in-wordpress-editor-before-export-to-pdf.png
Views:	165
Size:	178.5 KB
ID:	170455   Click image for larger version

Name:	arabic-pdf.png
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Size:	162.8 KB
ID:	170456  
Attached Files
File Type: pdf arab-book.pdf (75.7 KB, 99 views)
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Old 03-28-2019, 10:34 PM   #7
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Sure if your PDF uses a unicode font, then text extraction from it will succeed. The point is, it wil not succeed for arbitrary PDF files.
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