1 //========================================================================
2 //
3 // pdfimages.cc
4 //
5 // Copyright 1998-2003 Glyph & Cog, LLC
6 //
7 //========================================================================
8
9 #include <aconf.h>
10 #include <stdio.h>
11 #include <stdlib.h>
12 #include <stddef.h>
13 #include <string.h>
14 #include "parseargs.h"
15 #include "GString.h"
16 #include "gmem.h"
17 #include "GlobalParams.h"
18 #include "Object.h"
19 #include "Stream.h"
20 #include "Array.h"
21 #include "Dict.h"
22 #include "XRef.h"
23 #include "Catalog.h"
24 #include "Page.h"
25 #include "PDFDoc.h"
26 #include "ImageOutputDev.h"
27 #include "Error.h"
28 #include "config.h"
29
30 static int firstPage = 1;
31 static int lastPage = 0;
32 static GBool dumpJPEG = gFalse;
33 static char ownerPassword[33] = "\001";
34 static char userPassword[33] = "\001";
35 static GBool quiet = gFalse;
36 static char cfgFileName[256] = "";
37 static GBool printVersion = gFalse;
38 static GBool printHelp = gFalse;
39
40 static ArgDesc argDesc[] = {
41 {"-f", argInt, &firstPage, 0,
42 "first page to convert"},
43 {"-l", argInt, &lastPage, 0,
44 "last page to convert"},
45 {"-j", argFlag, &dumpJPEG, 0,
46 "write JPEG images as JPEG files"},
47 {"-opw", argString, ownerPassword, sizeof(ownerPassword),
48 "owner password (for encrypted files)"},
49 {"-upw", argString, userPassword, sizeof(userPassword),
50 "user password (for encrypted files)"},
51 {"-q", argFlag, &quiet, 0,
52 "don't print any messages or errors"},
53 {"-cfg", argString, cfgFileName, sizeof(cfgFileName),
54 "configuration file to use in place of .xpdfrc"},
55 {"-v", argFlag, &printVersion, 0,
56 "print copyright and version info"},
57 {"-h", argFlag, &printHelp, 0,
58 "print usage information"},
59 {"-help", argFlag, &printHelp, 0,
60 "print usage information"},
61 {"--help", argFlag, &printHelp, 0,
62 "print usage information"},
63 {"-?", argFlag, &printHelp, 0,
64 "print usage information"},
65 {NULL}
66 };
67
main(int argc,char * argv[])68 int main(int argc, char *argv[]) {
69 PDFDoc *doc;
70 GString *fileName;
71 char *imgRoot;
72 GString *ownerPW, *userPW;
73 ImageOutputDev *imgOut;
74 GBool ok;
75 int exitCode;
76
77 exitCode = 99;
78
79 #ifdef _MSC_VER
80 (void)kpse_set_program_name(argv[0], NULL);
81 #endif
82 // parse args
83 ok = parseArgs(argDesc, &argc, argv);
84 if (!ok || argc != 3 || printVersion || printHelp) {
85 fprintf(stderr, "pdfimages version %s\n", xpdfVersion);
86 fprintf(stderr, "%s\n", xpdfCopyright);
87 if (!printVersion) {
88 printUsage("pdfimages", "<PDF-file> <image-root>", argDesc);
89 }
90 goto err0;
91 }
92 fileName = new GString(argv[1]);
93 imgRoot = argv[2];
94
95 // read config file
96 globalParams = new GlobalParams(cfgFileName);
97 if (quiet) {
98 globalParams->setErrQuiet(quiet);
99 }
100
101 // open PDF file
102 if (ownerPassword[0] != '\001') {
103 ownerPW = new GString(ownerPassword);
104 } else {
105 ownerPW = NULL;
106 }
107 if (userPassword[0] != '\001') {
108 userPW = new GString(userPassword);
109 } else {
110 userPW = NULL;
111 }
112 doc = new PDFDoc(fileName, ownerPW, userPW);
113 if (userPW) {
114 delete userPW;
115 }
116 if (ownerPW) {
117 delete ownerPW;
118 }
119 if (!doc->isOk()) {
120 exitCode = 1;
121 goto err1;
122 }
123
124 // check for copy permission
125 if (!doc->okToCopy()) {
126 error(errNotAllowed, -1,
127 "Copying of images from this document is not allowed.");
128 exitCode = 3;
129 goto err1;
130 }
131
132 // get page range
133 if (firstPage < 1)
134 firstPage = 1;
135 if (lastPage < 1 || lastPage > doc->getNumPages())
136 lastPage = doc->getNumPages();
137
138 // write image files
139 imgOut = new ImageOutputDev(imgRoot, dumpJPEG);
140 if (imgOut->isOk()) {
141 doc->displayPages(imgOut, firstPage, lastPage, 72, 72, 0,
142 gFalse, gTrue, gFalse);
143 }
144 delete imgOut;
145
146 exitCode = 0;
147
148 // clean up
149 err1:
150 delete doc;
151 delete globalParams;
152 err0:
153
154 // check for memory leaks
155 Object::memCheck(stderr);
156 gMemReport(stderr);
157
158 return exitCode;
159 }
160