mirror of https://github.com/qpdf/qpdf.git
43 lines
1.3 KiB
C++
43 lines
1.3 KiB
C++
#include <qpdf/QPDF.hh>
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#include <qpdf/QPDFObjectHandle.hh>
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#include <qpdf/QPDFWriter.hh>
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#include <qpdf/QUtil.hh>
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#include <cstdlib>
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#include <iostream>
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int
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main(int argc, char* argv[])
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{
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auto whoami = QUtil::getWhoami(argv[0]);
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if (argc != 2) {
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std::cerr << "Usage: " << whoami << " outfile.pdf" << std::endl;
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exit(2);
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}
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char const* outfile = argv[1];
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// Create a file with lots of arrays containing very large numbers
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// of nulls. Prior to qpdf 9.0.0, qpdf had a lot of trouble with
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// this kind of file. This program is used to generate a file that
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// can be used in the test suite and performance benchmarking.
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QPDF q;
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q.emptyPDF();
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auto null = QPDFObjectHandle::newNull();
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auto top = "[]"_qpdf;
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for (int i = 0; i < 20; ++i) {
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auto inner = "[]"_qpdf;
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for (int j = 0; j < 20000; ++j) {
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inner.appendItem(null);
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}
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top.appendItem(inner);
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}
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q.getTrailer().replaceKey("/Nulls", q.makeIndirectObject(top));
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auto page = "<< /Type /Page /MediaBox [0 0 612 792] >>"_qpdf;
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page = q.makeIndirectObject(page);
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q.getRoot().getKey("/Pages").getKey("/Kids").appendItem(page);
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QPDFWriter w(q, outfile);
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w.setObjectStreamMode(qpdf_o_generate);
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w.setDeterministicID(true);
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w.write();
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return 0;
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}
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