Svg to pdf converter for Qt project - qt

Question

I have multiple svg files and I wish to convert them in the PDF format. The problem is that I need to work with multiple text fonts and a simple QSvgRenderer is not enough.
For example:
My problem is that I need to integrate a library in my project that does not use external dependencies (just a library that can be used as a standalone entity).
The only library that can partially suit my needs is librsvg but I have no experience and I can not find a method to integrate it in a Qt project.
Can someone give me a few tips or can point me in the right direction?
EDIT
With something basic there is not a single font that made it to the right using QSvgRenderer:
QSvgRenderer renderer;
renderer.load((QString)"E:/TEXT4.svg");
QPrinter printer;
printer.setOutputFormat(QPrinter::PdfFormat);
printer.setOutputFileName("E:/TEXT4.pdf");
QPainter painter(&printer);
renderer.render(&painter);
painter.end();

Answer 1

Maybe a bit late, but had the same problem and found a solution using Qt only.
The problem in your case is you need to install the fonts manually and need a QApplication.
E.g.:
int main(int argc, char** argv)
{
// A QApplication instance is necessary if fonts are used in the SVG
QApplication app(argc, argv);
int id = QFontDatabase::addApplicationFont(":/DejaVuSans.ttf");
if (id != -1)
{
QStringList font_families = QFontDatabase::applicationFontFamilies(id);
// This prints: DejaVu Sans
for (const auto& item : font_families)
{
std::cout << item.toStdString() << std::endl;
}
}
// Load your SVG
QSvgRenderer renderer(QString("myimage.svg"));
QPdfWriter pdfWriter(QString("mydoc.pdf"));
pdfWriter.setPageSize(QPageSize(QPageSize::A4));
QPainter painter(&pdfWriter);
renderer.render(&painter);
}
Also tested with multiple different font families and it worked.
Note: As far as I know, you cannot change the font name in Qt, so in the SVG font-family must match exactly the added font name. In this example, font-family:DejaVu Sans.