Log Message:
Update poppler to 0.28.1:

Release 0.28.0
        core:
         * Fix rendering of file with a wrong embedded font. Bug #84270
         * Use alt colorspace to get CMYK values for an ICC based CMYK \ 
colorspace. Bug #79019
         * Map Standard/Expert encoding ligatures to AGLFN names. Bug #80093
         * Make Attribute::getName() work when UTF-16BE is used. Bug #84722
         * Fix memory leak in Dict::remove. Bug #84607
         * Fix crashes in broken files
         * SplashOutputDev: Improve Overprintmode and shadings. Bug #80998
         * CairoOutputDev: fix crash when no group color space. Bug #85137
         * CairoOutputDev: Don't render text when text matrix is not invertable. \ 
Bug #78042
         * CairoOutputDev: Only embed mime data for gray/rgb/cmyk colorspaces. \ 
Bug #80719
         * CairoOutputDev: Only embed mime data if image decode map is identity
         * cairo: Use matrix to determine pattern size. Bug #33364
         * Fix compile warnings
         * regression test improvements

        glib:
         * Fix use of uninitialized members in PopplerInputStream. Bug #82630
         * Documentation improvements
         * Do not dist gir_DATA
         * Remove use of GTK deprecated functions. Bug #82384. Bug #82385
         * Build introspection linking to the uninstalled libraries. Big #84526

        qt4:
         * Add a new Page::annotations() that lets you specify subtypes

        qt5:
         * Add a new Page::annotations() that lets you specify subtypes

        utils:
         * pdfseparate: additional handling for annotations. Bug #77549
         * pdfdetach: fix crash when getPage() returns null. Bug #85145
         * pdftocairo: Add support for printing to a Windows printer. Bug #79936

        build system:
         * Move automake version check from autogen.sh to configure.ac. Bug #79797
         * Makefile.am cleanups. Bug #79411
         * Use poppler-data pkg-config
         * Make autogen.sh work with variables with spaces
         * Don't use -fPIC on mingw
         * Fix build with --disable-utils. Bug #84448