mirror of
https://github.com/michaelrsweet/pdfio.git
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66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
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//
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// PDF metadata example for PDFio.
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//
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// Copyright © 2023-2024 by Michael R Sweet.
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//
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// Licensed under Apache License v2.0. See the file "LICENSE" for more
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// information.
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//
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// Usage:
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//
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// ./pdfioinfo FILENAME.pdf
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//
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#include <pdfio.h>
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#include <time.h>
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//
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// 'main()' - Open a PDF file and show its metadata.
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//
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int // O - Exit status
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main(int argc, // I - Number of command-line arguments
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char *argv[]) // Command-line arguments
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{
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const char *filename; // PDF filename
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pdfio_file_t *pdf; // PDF file
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time_t creation_date; // Creation date
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struct tm *creation_tm; // Creation date/time information
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char creation_text[256]; // Creation date/time as a string
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// Get the filename from the command-line...
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if (argc != 2)
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{
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fputs("Usage: ./pdfioinfo FILENAME.pdf\n", stderr);
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return (1);
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}
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filename = argv[1];
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// Open the PDF file with the default callbacks...
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pdf = pdfioFileOpen(filename, /*password_cb*/NULL,
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/*password_cbdata*/NULL, /*error_cb*/NULL,
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/*error_cbdata*/NULL);
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if (pdf == NULL)
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return (1);
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// Get the creation date and convert to a string...
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creation_date = pdfioFileGetCreationDate(pdf);
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creation_tm = localtime(&creation_date);
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strftime(creation_text, sizeof(creation_text), "%c", creation_tm);
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// Print file information to stdout...
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printf("%s:\n", filename);
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printf(" Title: %s\n", pdfioFileGetTitle(pdf));
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printf(" Author: %s\n", pdfioFileGetAuthor(pdf));
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printf(" Created On: %s\n", creation_text);
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printf(" Number Pages: %u\n", (unsigned)pdfioFileGetNumPages(pdf));
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// Close the PDF file...
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pdfioFileClose(pdf);
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return (0);
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}
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