[Okular-devel] [okular] [Bug 360201] all PDF text dissapeared after highlighting the text.

[Jonathan Verner via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=360201

Jonathan Verner <jonathan.verner at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jonathan.verner at gmail.com

--- Comment #2 from Jonathan Verner <jonathan.verner at gmail.com> ---
I can confirm the behaviour described. The same thing happens in the evince
viewer suggesting that it is, in fact, a poppler bug. Also, I tried the
following things:

 1. Add the annotation and save the file (both okular and evince)
     When I open the file, the annotation is lost but adding more annotations
doesn't exhibit the 
     problem anymore. I.e. it seems that after poppler rewrites the file, the
problems disappear.


 2. Add the annotation and delete it again: 

        evince doesn't allow me to delete the annotation (right-clicking on it
shows the regular
         right-click menu without the option to delete the annotation)

        okular crashes on me with the following backtrace:

#6  0x00007f4004e70cc9 in __GI_raise (sig=sig at entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
#7  0x00007f4004e740d8 in __GI_abort () at abort.c:89
#8  0x00007f4004e69b86 in __assert_fail_base (fmt=0x7f4007f2d029 "%s%s%s:%u:
%s%sP\305\231edpoklad \342\200\236%s\342\200\234 nespln\304\233n.\n%n",
assertion=assertion at entry=0x7f3ff1759791 "pageobj != __null",
file=file at entry=0x7f3ff1759738 "Annot.cc", line=line at entry=1808,
function=function at entry=0x7f3ff175d640 <Annot::getRotation()
const::__PRETTY_FUNCTION__> "int Annot::getRotation() const") at assert.c:92
#9  0x00007f4004e69c32 in __GI___assert_fail (assertion=0x7f3ff1759791 "pageobj
!= __null", file=0x7f3ff1759738 "Annot.cc", line=1808, function=0x7f3ff175d640
<Annot::getRotation() const::__PRETTY_FUNCTION__> "int Annot::getRotation()
const") at assert.c:101
#10 0x00007f3ff166fb31 in Annot::getRotation (this=0x29d63e0) at Annot.cc:1808
#11 0x00007f3ff1670292 in AnnotTextMarkup::draw (this=0x29d63e0,
gfx=0x7f3fe80037a0, printing=<optimized out>) at Annot.cc:3823
#12 0x00007f3ff16eb6ac in Page::displaySlice (this=0x23e7bc0,
out=0x7f3fe828a9c0, out at entry=0x1e828a9c0,
hDPI=hDPI at entry=6.9125935956414803e-310,
vDPI=vDPI at entry=1.8601247458859261e-316, rotate=rotate at entry=32575,
useMediaBox=useMediaBox at entry=false, crop=crop at entry=63, sliceX=sliceX at entry=0,
sliceY=-1, sliceW=-1, sliceH=-1, printing=false, abortCheckCbk=0x0,
abortCheckCbkData=0x0, annotDisplayDecideCbk=0x0,
annotDisplayDecideCbkData=0x0, copyXRef=true) at Page.cc:605
#13 0x00007f3ff16f1b19 in PDFDoc::displayPageSlice (this=<optimized out>,
out=0x1e828a9c0, out at entry=0x7f3fe828a9c0, page=32575, page at entry=3,
hDPI=6.9125935956414803e-310, hDPI at entry=91.788312920865906,
vDPI=1.8601247458859261e-316, vDPI at entry=91.722676797194609, rotate=32575,
rotate at entry=0, useMediaBox=useMediaBox at entry=false, crop=crop at entry=true,
printing=255, printing at entry=false, sliceX=sliceX at entry=-1,
sliceY=sliceY at entry=-1, sliceW=0, sliceW at entry=-1, sliceH=0, sliceH at entry=-1,
abortCheckCbk=abortCheckCbk at entry=0x0,
abortCheckCbkData=abortCheckCbkData at entry=0x0,
annotDisplayDecideCbk=annotDisplayDecideCbk at entry=0x0,
annotDisplayDecideCbkData=0x1, annotDisplayDecideCbkData at entry=0x0,
copyXRef=copyXRef at entry=true) at PDFDoc.cc:498
#14 0x00007f3ff1a32f6d in Poppler::Page::renderToImage
(this=this at entry=0x7f3fe8285800, xres=xres at entry=91.788312920865906,
yres=yres at entry=91.722676797194609, x=-1, y=-1, w=-1, h=-1,
rotate=Poppler::Page::Rotate0) at poppler-page.cc:317
#15 0x00007f3ff1c83f05 in PDFGenerator::image (this=0x22f1050,
request=0x29b2960) at ../../../generators/poppler/generator_pdf.cpp:877
#16 0x00007f3ff612a843 in Okular::PixmapGenerationThread::run (this=0x36c23f0)
at ../core/generator_p.cpp:64
#17 0x00007f40057f932f in QThreadPrivate::start (arg=0x36c23f0) at
thread/qthread_unix.cpp:349
#18 0x00007f40024f5182 in start_thread (arg=0x7f3feed11700) at
pthread_create.c:312
#19 0x00007f4004f3447d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111


Output of okular --version:

Qt: 4.8.6
KDE Development Platform: 4.14.13
Okular: 0.20.3

Output of pdftotext -v:

pdftotext version 0.24.5
Copyright 2005-2013 The Poppler Developers - http://poppler.freedesktop.org
Copyright 1996-2011 Glyph & Cog, LLC

Also, it seems that the pdf-file is in fact corrupt. This is (a part of) the
output from
http://www.pdf-tools.com/pdf/validate-pdfa-online.aspx:

The file trailer dictionary is missing or invalid.
The separator after an 'obj' must be an EOL. (730)
The separator before an 'endobj' must be an EOL.
The file trailer dictionary must have an id key.

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