Bug 345897 - Wrong display of some math characters in particular document
Summary: Wrong display of some math characters in particular document
Status: RESOLVED NOT A BUG
Alias: None
Product: okular
Classification: Applications
Component: PDF backend (show other bugs)
Version: 0.21.1
Platform: Arch Linux Linux
: NOR minor
Target Milestone: ---
Assignee: Okular developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-04-05 18:34 UTC by Sergey Kostyuk
Modified: 2015-04-08 16:51 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments
the file for posterity (95.37 KB, text/pdf)
2015-04-05 19:34 UTC, Albert Astals Cid
Details
Screenshot from arch system of second sample file (file http://goo.gl/ThlXl9) (123.48 KB, image/png)
2015-04-05 19:44 UTC, Sergey Kostyuk
Details
Screenshot from ubuntu system of second sample file (file http://goo.gl/ThlXl9) (126.46 KB, image/png)
2015-04-05 19:47 UTC, Sergey Kostyuk
Details
Arch - font properties of document with existing symbol.ttf font (50.52 KB, image/png)
2015-04-08 16:42 UTC, Sergey Kostyuk
Details
Arch - font properties of document with deleted symbol.ttf font file (41.72 KB, image/png)
2015-04-08 16:43 UTC, Sergey Kostyuk
Details

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Description Sergey Kostyuk 2015-04-05 18:34:43 UTC
Good day.

Some symbols in particular PDF document (generated by PageMaker 6.5 but I don't know if it matters) are displayed wrong by Okular. For example symbol ≤ looks like " and symbol π - like ≠. But only looks so. If we select those symbols and copy them somewhere else (for example, to .txt document, terminal, anywhere) - we will get ≤ and π respectively, as must to be.

Sorry for my English.

Sorry for my English

Reproducible: Sometimes

Steps to Reproduce:
0. Download this file (one page from problem pdf document): http://goo.gl/FdZLwF
1. Open it with Okular
2. Open it with another PDF viewer (I used Chromium build-in PDF Viewer and Google Docs web viewer)
3. Compare

AND

1. Open erroneous document in Okular
2. Select and copy some text to LibreOffice Writer or Sublime Text, for example
3. Compare result with displayed page in Okular

Actual Results:  
In Okular symbol ≤ looks like " and symbol π - like ≠, unlike in another viewers. But symbols in copied text from Okular to another text editor looks normal.

Expected Results:  
Symbol must ≤ look like ≤ and symbol π - like π

Properties of the original document: http://imgur.com/cZxtuw8
Comment 1 Sergey Kostyuk 2015-04-05 18:56:27 UTC
Another sample (PDF page), similar problem with sum symbol: http://goo.gl/ThlXl9
Comment 2 Yuri Chornoivan 2015-04-05 19:24:24 UTC
Looks fine here (okular 0.22.60, poppler 0.28).

Can you check what your version of poppler is ("pdftotext -v")? Is it possible to test it with another version?

Thanks in advance for your answers.
Comment 3 Albert Astals Cid 2015-04-05 19:34:49 UTC
Created attachment 91900 [details]
the file for posterity
Comment 4 Albert Astals Cid 2015-04-05 19:35:11 UTC
Please attach a screenshot highlighting where the problem is
Comment 5 Sergey Kostyuk 2015-04-05 19:44:56 UTC
Created attachment 91901 [details]
Screenshot from arch system of second sample file (file http://goo.gl/ThlXl9)
Comment 6 Sergey Kostyuk 2015-04-05 19:47:13 UTC
Created attachment 91902 [details]
Screenshot from ubuntu system of second sample file (file http://goo.gl/ThlXl9)
Comment 7 Sergey Kostyuk 2015-04-05 19:48:15 UTC
Original report was created from Arch system with okular 0.21.3 and poppler 0.31.0. And just installed Okular on Ubuntu system (okular 1.19.3, poppler 0.24.5) - document looks well. Screenshots attached. 

Can I provide more information? Thanks.
Comment 8 Albert Astals Cid 2015-04-05 22:19:25 UTC
Do you have poppler-data?
Comment 9 Sergey Kostyuk 2015-04-06 19:24:59 UTC
No, I had't. But just installed poppler-data 0.4.7-1 - no change, still erroneous display.
Comment 10 Albert Astals Cid 2015-04-07 20:22:49 UTC
compare the file->properties->fonts contents, and attach the screenshots here
Comment 11 Sergey Kostyuk 2015-04-08 16:42:18 UTC
Created attachment 91949 [details]
Arch - font properties of document with existing symbol.ttf font
Comment 12 Sergey Kostyuk 2015-04-08 16:43:01 UTC
Created attachment 91951 [details]
Arch - font properties of document with deleted symbol.ttf font file
Comment 13 Sergey Kostyuk 2015-04-08 16:49:38 UTC
Many thanks, issue solved, not an Okular bug. And sorry for wasted time.

The problem was in one font file (symbol.ttf), copied from Windows font folder long time ago. I just needed to delete it - and everything backed to normal.