Public bug reported:

Creating a PDF from a document written in the Arabic script deforms the
textual content of the document, although it looks fine on the screen.

For example, see the attached PDF created with Writer, where the example
sentence "اشترى بلال خمسة آلاف كتاب وَأَنَا اشْتَرَيْتُهَا مِنْهُ" looks
as it should, but when you view it with any PDF reader, such as evince,
copying the text deforms most of the words. Some characters are clearly
visible but cannot be selected or searched (such as ى at the end of the
first word اشترى). If I search for the second word بلال, evince tells me
there are no matches in the document. The same happens when converting
the file with pdftotext, which produces the following output:

‫اشتر‬

‫للا مسة لفا كتاب وَأَنَا ْ‬
‫ه‬
‫اشت َ َريْتُهَا ِ‬
‫من ْ ُ‬

Here only two of the seven words are intact, the rest are garbled in one
way or another. If the text is in Latin script, both evince and
pdftotext behave as expected, meaning that the textual content is
transferred correctly from Writer to the PDF.

Description:    Ubuntu 17.10
Release:        17.10

libreoffice-writer:
  Installed: 1:5.4.6-0ubuntu0.17.10.1
  Candidate: 1:5.4.6-0ubuntu0.17.10.1
  Version table:
 *** 1:5.4.6-0ubuntu0.17.10.1 500
        500 http://mr.archive.ubuntu.com/ubuntu artful-updates/main amd64 
Packages
        100 /var/lib/dpkg/status
     1:5.4.5-0ubuntu0.17.10.5 500
        500 http://security.ubuntu.com/ubuntu artful-security/main amd64 
Packages
     1:5.4.1-0ubuntu1 500
        500 http://mr.archive.ubuntu.com/ubuntu artful/main amd64 Packages

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: libreoffice-writer 1:5.4.6-0ubuntu0.17.10.1
ProcVersionSignature: Ubuntu 4.13.0-41.46-generic 4.13.16
Uname: Linux 4.13.0-41-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.8
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon May 21 15:18:41 2018
InstallationDate: Installed on 2017-02-13 (462 days ago)
InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fi_FI.UTF-8
 SHELL=/bin/bash
SourcePackage: libreoffice
UpgradeStatus: Upgraded to artful on 2017-11-05 (196 days ago)

** Affects: libreoffice (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug artful wayland-session

** Attachment added: "Example matching Arabic PDF.pdf"
   
https://bugs.launchpad.net/bugs/1772439/+attachment/5142401/+files/Example%20matching%20Arabic%20PDF.pdf

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https://bugs.launchpad.net/bugs/1772439

Title:
  Arabic text gets deformed when creating a PDF in LibreOffice Writer

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