I got the problem, whenn scanning a .pdf document with my HP scanner these documents will not work properly with okular. No problems so far with Acrobat or Foxit-Reader. The last page in *.pdf color scans will alway apear blank when opened using okular.

The package Info for okular is:

Code: Select all

dpkg-query -p okular
Package: okular
Priority: optional
Section: graphics
Installed-Size: 3921
Maintainer: Kubuntu Developers <kubuntu-devel@lists.ubuntu.com>
Architecture: amd64
Version: 4:4.13.3-0ubuntu0.1
Replaces: kdegraphics-mobipocket (<< 4:4.11.80)
Provides: pdf-viewer, postscript-viewer
Depends: kde-runtime, libc6 (>= 2.14), libfreetype6 (>= 2.2.1), libjpeg8 (>= 8c), libkactivities6 (>= 4:4.9.80), libkdecore5 (>= 4:4.13.3), libkdeui5 (>= 4:4.13.3), libkexiv2-11 (>= 4:4.5.90), libkio5 (>= 4:4.13.3), libkparts4 (>= 4:4.13.3), libkprintutils4 (>= 4:4.13.3), libkpty4 (>= 4:4.13.3), libokularcore4 (= 4:4.13.3-0ubuntu0.1), libphonon4 (>= 4:4.6.0really4.3.80), libpoppler-qt4-4 (>= 0.22.1), libqca2 (>= 2.0.2), libqimageblitz4 (>= 1:0.0.4), libqmobipocket1 (>= 4:4.11.80), libqt4-dbus (>= 4:4.6.1), libqt4-declarative (>= 4:4.7.0~rc1), libqt4-svg (>= 4:4.5.3), libqt4-xml (>= 4:4.5.3), libqtcore4 (>= 4:4.8.0), libqtgui4 (>= 4:4.8.0), libsolid4 (>= 4:4.13.3), libspectre1 (>= 0.2.3), libstdc++6 (>= 4.1.1), phonon, zlib1g (>= 1:1.1.4)
Suggests: okular-extra-backends (= 4:4.13.3-0ubuntu0.1), texlive-binaries, unrar, poppler-data, ghostscript, jovie
Breaks: kdegraphics-mobipocket (<< 4:4.11.80)
Size: 1228456
Description: universal document viewer
 Okular is a universal document viewer with support for advanced document
 features, such as annotations, forms, and embedded files.
 .
 This package provides the document viewer application, plus plugins for a wide
 variety of document formats such as:
  * PostScript (PS)
  * Portable Document Format (PDF)
  * OpenDocument Text (ODT)
  * TeX Device independent file format (DVI)
  * XML Paper Specification (XPS)
  * G3 fax
  * various electronic book formats: ComicBook, FictionBook, and Plucker
 .
 This package is part of the KDE graphics module.
Homepage: http://www.kde.org/
Original-Maintainer: Debian Qt/KDE Maintainers <debian-qt-kde@lists.debian.org>

when I open okular in a console no error messages are given.

Thanks for help
Andreas

ps. how can i provide an example file for you best?

fyi Okular is a gui front end to the Poppler libraries which do the actual PDF rendering

let's try and see if using kdebgdialog generates any helpful messages
run kdebugdialog -> deselect all -> search in box for okular -> select all -> ok
close okular, start it and then try and opening a problem file - any errors found will be in the end of file ~/.xsession-errors

google01103 wrote:fyi Okular is a gui front end to the Poppler libraries which do the actual PDF rendering

let's try and see if using kdebgdialog generates any helpful messages
run kdebugdialog -> deselect all -> search in box for okular -> select all -> ok
close okular, start it and then try and opening a problem file - any errors found will be in the end of file ~/.xsession-errors

Starting Okular throws this messages:

Code: Select all

Bus::open: Can not get ibus-daemon's address.
IBusInputContext::createInputContext: no connection to ibus-daemon
Bus::open: Can not get ibus-daemon's address.
IBusInputContext::createInputContext: no connection to ibus-daemon


when opening a problem file, this comes up:

Code: Select all

okular(4122)/okular (app) Okular::Document::requestPixmaps: request observer=0xa24008 939x1323@0
okular(4122)/okular (app) Okular::Document::requestPixmaps: request observer=0xa24008 939x1323@1
okular(4122)/okular (app) Okular::DocumentPrivate::sendGeneratorPixmapRequest: sending request observer=0xa24008 939x1323@0 async == true isTile == false
okular(4122)/okular (app) Okular::Document::requestPixmaps: request observer=0xa24008 939x1323@0
okular(4122)/okular (app) Okular::Document::requestPixmaps: request observer=0xa24008 939x1323@1
okular(4122)/okular (app) Okular::Document::requestPixmaps: request observer=0x8f2368 187x264@0
okular(4122)/okular (app) Okular::Document::requestPixmaps: request observer=0x8f2368 187x264@1
okular(4122)/okular (app) Okular::Document::requestPixmaps: request observer=0xa24008 922x1299@0
okular(4122)/okular (app) Okular::Document::requestPixmaps: request observer=0xa24008 922x1299@1
okular(4122)/okular (app) Okular::Document::requestPixmaps: request observer=0xa24008 922x1299@0
okular(4122)/okular (app) Okular::Document::requestPixmaps: request observer=0xa24008 922x1299@1
okular(4122)/okular (app) Okular::Document::requestPixmaps: request observer=0xa24008 922x1299@0
okular(4122)/okular (app) Okular::Document::requestPixmaps: request observer=0xa24008 922x1299@1
okular(4122)/okular (app) Okular::DocumentPrivate::sendGeneratorPixmapRequest: sending request observer=0xa24008 922x1299@0 async == true isTile == false
okular(4122)/okular (app) Okular::DocumentPrivate::sendGeneratorPixmapRequest: sending request observer=0x8f2368 187x264@0 async == true isTile == false
okular(4122)/okular (app) Okular::DocumentPrivate::sendGeneratorPixmapRequest: sending request observer=0x8f2368 187x264@1 async == true isTile == false
okular(4122)/okular (app) Okular::Document::requestPixmaps: request observer=0xa24008 922x1299@1
okular(4122)/okular (app) Okular::DocumentPrivate::sendGeneratorPixmapRequest: sending request observer=0xa24008 922x1299@1 async == true isTile == false


not sure about those messages, I assume a non problematic file doesn't throw them ?

those messaged were display in Konsole or kdebugdialog? if Konsole you should run the kdebugdialog I reference earlier

if you scan a document as gray scale instead of color is the last page viewable?

looking on bugs.kd.org and searching okular with either color or blank I found nothing comparable so you might want to submit a bug report

If you can put a problematic doc on the web so I can retrieve it I'll see if it works for me

google01103 wrote:if you scan a document as gray scale instead of color is the last page viewable?
Yes, if I scan gray scale it works fine

looking on bugs.kd.org and searching okular with either color or blank I found nothing comparable so you might want to submit a bug report

If you can put a problematic doc on the web so I can retrieve it I'll see if it works for me

try at 84.170.207.140/scan.pdf (I hope this works I am not an expert on webserver isues)

Thanks

1st I will say your much better at webserver issues than I

2nd assuming you provided be 2 pages what you provided seems fine to me (note: I compressed and shrunk them)




assuming the issues is the Poppler libraries these are the ones I have installed
poppler-tools-0.26.5-1.1.x86_64
libpoppler-glib8-0.26.5-1.1.x86_64
libpoppler-qt4-devel-0.26.5-1.1.x86_64
libpoppler-cpp0-0.26.5-1.1.x86_64
libpoppler-qt4-4-0.26.5-1.1.x86_64
libpoppler-qt5-1-0.26.5-1.1.x86_64
libpoppler-devel-0.26.5-1.1.x86_64
libpoppler46-0.26.5-1.1.x86_64
poppler-data-0.4.7-1.2.noarch
also running Okular poppler-data-0.4.7-1.2.noarch

not sure what you should do next but:
1) updating the poppler libs if possible
2) test as a new user
3) post on your distro's forum see if it's them or your system

finally

I don't know whether you've found a solution to this. If so, please, post...

I have identical problem: HP scanner, last page of pdf files is displayed blank in Okular, but not in Acroread... It all used to work fine time ago, but after one of the OS upgrades, this problem appear...

Many thanks.