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4ee393d1fa
By combining --linearize with --compress-streams=n, we ensure that no new compressed data will appear in linearized output, which makes the output independent of zlib's output. There are other tests to ensure that linearization works correctly with compression. This commit involves changing some test outputs and test code as well just updating test suites.
104 lines
2.6 KiB
C++
104 lines
2.6 KiB
C++
#include <qpdf/QPDFJob.hh>
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#include <qpdf/QUtil.hh>
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#include <iostream>
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// This program is a simple demonstration of different ways to use the QPDFJob API.
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static char const* whoami = nullptr;
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static void
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usage()
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{
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std::cerr << "Usage: " << whoami << std::endl
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<< "This program linearizes the first page of in.pdf to out1.pdf,"
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<< " out2.pdf, and" << std::endl
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<< " out3.pdf, each demonstrating a different way to use the"
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<< " QPDFJob API" << 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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whoami = QUtil::getWhoami(argv[0]);
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if (argc != 1) {
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usage();
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}
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// The examples below all catch std::exception. Note that QPDFUsage can be caught separately to
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// report on errors in using the API itself. For CLI, this is command-line usage. For JSON or
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// the API, it would be errors from the equivalent invocation.
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// Note that staticId is used for testing only.
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try {
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// Use the config API
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QPDFJob j;
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j.config()
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->inputFile("in.pdf")
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->outputFile("out1.pdf")
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->pages()
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->pageSpec(".", "1")
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->endPages()
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->linearize()
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->staticId() // for testing only
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->compressStreams("n") // avoid dependency on zlib output
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->checkConfiguration();
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j.run();
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std::cout << "out1 status: " << j.getExitCode() << std::endl;
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} catch (std::exception& e) {
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std::cerr << "exception: " << e.what() << std::endl;
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return 2;
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}
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try {
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char const* new_argv[] = {
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whoami,
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"in.pdf",
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"out2.pdf",
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"--linearize",
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"--pages",
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".",
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"1",
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"--",
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"--static-id",
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"--compress-streams=n", // avoid dependency on zlib output
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nullptr};
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QPDFJob j;
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j.initializeFromArgv(new_argv);
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j.run();
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std::cout << "out2 status: " << j.getExitCode() << std::endl;
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} catch (std::exception& e) {
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std::cerr << "exception: " << e.what() << std::endl;
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return 2;
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}
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try {
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// Use the JSON API
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QPDFJob j;
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j.initializeFromJson(R"({
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"inputFile": "in.pdf",
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"outputFile": "out3.pdf",
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"staticId": "",
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"linearize": "",
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"compressStreams": "n",
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"pages": [
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{
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"file": ".",
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"range": "1"
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}
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]
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}
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)");
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j.run();
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std::cout << "out3 status: " << j.getExitCode() << std::endl;
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} catch (std::exception& e) {
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std::cerr << "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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