QtPDF Build Instructions
QtPdf binaries are provided via Marketplace for convenience; but you can also build it yourself.
Building the 5.15 version
- sources for QtPdf module are hosted within QtWebEngine repository, let's clone and initialize the git repository:
$ git clone https://code.qt.io/qt/qtwebengine.git
$ cd qtwebengine
$ git checkout 5.15.0
$ git submodule update --init --recursive
$ cd ..
- fortunately build of QtWebEngine itself is not necessary for QtPdf build, therefore let's configure shadow build with:
$ mkdir build
$ cd build
$ qmake ../qtwebengine -- -no-build-qtwebengine-core
- you should see configuration summary after this step:
Configure summary:
Qt WebEngine Build Tools:
Use System Ninja ....................... yes
Use System Gn .......................... no
Jumbo Build Merge Limit ................ 8
Developer build ........................ no
QtWebEngine required system libraries:
fontconfig ........................... yes
dbus ................................. yes
nss .................................. yes
khr .................................. yes
glibc ................................ yes
QtWebEngine required system libraries for qpa-xcb:
x11 .................................. yes
libdrm ............................... yes
xcomposite ........................... yes
xcursor .............................. yes
xi ................................... yes
xtst ................................. yes
Optional system libraries used:
re2 .................................. yes
icu .................................. no
libwebp, libwebpmux and libwebpdemux . yes
opus ................................. yes
ffmpeg ............................... no
libvpx ............................... yes
snappy ............................... yes
glib ................................. yes
zlib ................................. yes
minizip .............................. yes
libevent ............................. yes
jsoncpp .............................. yes
protobuf ............................. yes
libxml2 and libxslt .................. yes
lcms2 ................................ yes
png .................................. yes
JPEG ................................. yes
harfbuzz ............................. yes
freetype ............................. yes
xkbcommon ............................ yes
Qt PDF:
Support V8 ............................. no
Support XFA ............................ no
Support XFA-BMP ........................ no
Support XFA-GIF ........................ no
Support XFA-PNG ........................ no
Support XFA-TIFF ....................... no
Qt PDF Widgets:
Support Qt PDF Widgets ................. yes
Note: QtWebEngine build is disabled by user.
Note: The following modules are not being compiled in this configuration:
webenginecore
webengine
webenginewidgets
Qt is now configured for building. Just run 'make'.
Once everything is built, you must run 'make install'.
Qt will be installed into '/usr'.
- QtPdf build will use gn and ninja to build Pdfium which is required or QtPdf module, let's perform the build:
$ NINJAJOBS=-j4 make -j4 && make install
Since QtPdf comes with Qml and Widget APIs examples using those can be found in examples/pdf and examples/pdfwidgets.
In case of any issues please open bug report for PDF component in https://bugreports.qt.io/ using PDF as component.
Historical repository
The older version in the Qt Labs QtPDF repository still exists, but development now continues in the qtwebengine repository. This was prompted mainly by the upstream Chromium switch of build system from gyp to gn system: it was some work to get qtwebengine building with that. Chromium (and thus Qt WebEngine) include PDFium already; so it was easier to build QtPDF from there than to fix the build in the other repository.