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File size: 2,486 Bytes
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#include <QtCore/QDebug>
#include <QtCore/QDir>
#include <QtCore/QElapsedTimer>
#include <QtWidgets/QApplication>
#include <QtGui/QImage>
#include <iostream>
#include <poppler-qt6.h>
int main(int argc, char **argv)
{
QApplication a(argc, argv); // QApplication required!
Q_UNUSED(argc);
Q_UNUSED(argv);
QElapsedTimer t;
t.start();
QDir dbDir(QStringLiteral("./pdfdb"));
if (!dbDir.exists()) {
qWarning() << "Database directory does not exist";
}
QStringList excludeSubDirs;
excludeSubDirs << QStringLiteral("000048") << QStringLiteral("000607");
const QStringList dirs = dbDir.entryList(QStringList() << QStringLiteral("0000*"), QDir::Dirs);
foreach (const QString &subdir, dirs) {
if (excludeSubDirs.contains(subdir)) {
// then skip it
} else {
QString path = "./pdfdb/" + subdir + "/data.pdf";
std::cout << "Doing " << path.toLatin1().data() << " :";
std::unique_ptr<Poppler::Document> doc = Poppler::Document::load(path);
if (!doc) {
qWarning() << "doc not loaded";
} else {
auto pdfVersion = doc->getPdfVersion();
Q_UNUSED(pdfVersion);
doc->info(QStringLiteral("Title"));
doc->info(QStringLiteral("Subject"));
doc->info(QStringLiteral("Author"));
doc->info(QStringLiteral("Keywords"));
doc->info(QStringLiteral("Creator"));
doc->info(QStringLiteral("Producer"));
doc->date(QStringLiteral("CreationDate")).toString();
doc->date(QStringLiteral("ModDate")).toString();
doc->numPages();
doc->isLinearized();
doc->isEncrypted();
doc->okToPrint();
doc->okToCopy();
doc->okToChange();
doc->okToAddNotes();
doc->pageMode();
for (int index = 0; index < doc->numPages(); ++index) {
std::unique_ptr<Poppler::Page> page = doc->page(index);
page->renderToImage();
page->pageSize();
page->orientation();
std::cout << ".";
std::cout.flush();
}
std::cout << std::endl;
}
}
}
std::cout << "Elapsed time: " << (t.elapsed() / 1000) << std::endl;
}
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