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#include <qpdf/QPDFJob.hh>
#include <qpdf/QPDFUsage.hh>
#include <qpdf/QUtil.hh>
#include <cstdio>
#include <cstdlib>
#include <iostream>
// This example demonstrates how we can use the QPDFJob createQPDF and writeQPDF methods to add
// custom transformations to the output produced by QPDFJob runs. The example is a full copy of the
// qpdf program modified to allways remove all annotations from the final output.
static char const* whoami = nullptr;
static void
usageExit(std::string const& msg)
{
std::cerr << std::endl
<< whoami << ": " << msg << std::endl
<< std::endl
<< "For help:" << std::endl
<< " " << whoami << " --help=usage usage information" << std::endl
<< " " << whoami << " --help=topic help on a topic" << std::endl
<< " " << whoami << " --help=--option help on an option" << std::endl
<< " " << whoami << " --help general help and a topic list" << std::endl
<< std::endl;
exit(QPDFJob::EXIT_ERROR);
}
int
realmain(int argc, char* argv[])
{
whoami = QUtil::getWhoami(argv[0]);
QUtil::setLineBuf(stdout);
QPDFJob j;
try {
// See "HOW TO ADD A COMMAND-LINE ARGUMENT" in README-maintainer.
j.initializeFromArgv(argv);
auto qpdf_sp = j.createQPDF();
auto& pdf = *qpdf_sp;
for (auto page: pdf.getAllPages()) {
page.replaceKey("/Annots", "null"_qpdf);
}
j.writeQPDF(pdf);
} catch (QPDFUsage& e) {
usageExit(e.what());
} catch (std::exception& e) {
std::cerr << whoami << ": " << e.what() << std::endl;
return QPDFJob::EXIT_ERROR;
}
return j.getExitCode();
}
#ifdef WINDOWS_WMAIN
extern "C" int
wmain(int argc, wchar_t* argv[])
{
return QUtil::call_main_from_wmain(argc, argv, realmain);
}
#else
int
main(int argc, char* argv[])
{
return realmain(argc, argv);
}
#endif
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