mirror of https://github.com/qpdf/qpdf.git
72 lines
1.8 KiB
C++
72 lines
1.8 KiB
C++
//
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// This is a stand-alone example of splitting a PDF into individual pages. It does essentially the
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// same thing that qpdf --split-pages does.
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//
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#include <qpdf/QIntC.hh>
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#include <qpdf/QPDF.hh>
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#include <qpdf/QPDFPageDocumentHelper.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 <cstring>
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#include <iostream>
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#include <string>
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static bool static_id = false;
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static void
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process(char const* whoami, char const* infile, std::string outprefix)
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{
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QPDF inpdf;
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inpdf.processFile(infile);
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std::vector<QPDFPageObjectHelper> pages = QPDFPageDocumentHelper(inpdf).getAllPages();
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int pageno_len = QIntC::to_int(std::to_string(pages.size()).length());
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int pageno = 0;
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for (auto& page: pages) {
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std::string outfile = outprefix + QUtil::int_to_string(++pageno, pageno_len) + ".pdf";
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QPDF outpdf;
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outpdf.emptyPDF();
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QPDFPageDocumentHelper(outpdf).addPage(page, false);
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QPDFWriter outpdfw(outpdf, outfile.c_str());
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if (static_id) {
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// For the test suite, uncompress streams and use static IDs.
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outpdfw.setStaticID(true); // for testing only
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outpdfw.setStreamDataMode(qpdf_s_uncompress);
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}
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outpdfw.write();
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}
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}
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void
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usage(char const* whoami)
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{
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std::cerr << "Usage: " << whoami << " infile outprefix" << std::endl;
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exit(2);
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}
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int
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main(int argc, char* argv[])
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{
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char const* whoami = QUtil::getWhoami(argv[0]);
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// For test suite
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if ((argc > 1) && (strcmp(argv[1], " --static-id") == 0)) {
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static_id = true;
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--argc;
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++argv;
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}
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if (argc != 3) {
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usage(whoami);
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}
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try {
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process(whoami, argv[1], argv[2]);
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} catch (std::exception const& e) {
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std::cerr << whoami << ": exception: " << e.what() << std::endl;
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return 2;
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}
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return 0;
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}
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