86 lines
2.8 KiB
C++
86 lines
2.8 KiB
C++
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/****************************************************************************
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*
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* File: imgext.cpp
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*
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* Usage: imgext PDF-input
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*
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* Description: Extracts Images of a PDF document
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*
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* Version: 1.00 (15-Nov-2005)
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*
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* Author: Philip Renggli, PDF Tools AG
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*
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* Copyright: Copyright (C) 2005 PDF Tools AG, Switzerland
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* Permission to use, copy, modify, and distribute this
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* software and its documentation for any purpose and without
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* fee is hereby granted, provided that the above copyright
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* notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting
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* documentation. This software is provided "as is" without
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* express or implied warranty.
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*
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***************************************************************************/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "expa_c.h"
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int main(int argc, char* argv[])
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{
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TExpaDocument pDocument;
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TExpaContent pContent;
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TExpaGraphicsState pGs;
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TExpaImage pImage;
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double dWidth, dHeight;
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int iImageNumber;
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char cImageNumber[33];
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if (argc < 2)
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{
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printf("Usage: imgext input.pdf");
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return 3;
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}
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/* Create the object */
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ExpaInitialize();
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pDocument = ExpaCreateObject();
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/* Open the document */
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if (!ExpaDocOpen(pDocument, argv[1], ""))
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{
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printf("error opening PDF file %s...\n",argv[1]);
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return 1;
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}
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/* Loop through all page and render them */
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iImageNumber = 1;
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for(int iPage = 1; iPage <= ExpaDocGetPageCount(pDocument); iPage++)
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{
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/* Set the page number */
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ExpaDocSetPageNo(pDocument, iPage);
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/* Get the content */
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pContent = ExpaPageGetContent(ExpaDocGetPage(pDocument));
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while (ExpaContentGetNextImage(pContent))
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{
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pImage = ExpaContentGetImage(pContent);
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dWidth = ExpaImageGetWidth(pImage);
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dHeight = ExpaImageGetHeight(pImage);
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pGs = ExpaContentGetGraphicsState(pContent);
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ExpaImageChangeOrientation(pImage, ExpaGSGetCTM(pGs)->Orientation);
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sprintf(cImageNumber, "%d", iImageNumber++);
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/* The name of the extention decides which image type is used. i.e. tif, jpg) */
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ExpaImageStore(pImage, strcat(cImageNumber, "-image.jpg"), eComprRaw);
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}
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}
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/* Close and destroy the object */
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ExpaDocClose(pDocument);
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ExpaDestroyObject(pDocument);
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ExpaUnInitialize();
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return 0;
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}
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