Legacy ImageMagick Discussions Archive

I am trying to convert a 2 page PDF to two tiff images, but the tiff images come out either blank (all white) or with off-white speckles all over it. I can include the identify verbose info, but I cannot post the original PDF.

When we view the PDF in Adobe Acrobat, the two pages show up like they are regular black and white (or grayscale) images. They will also print correctly from the Acrobat 8 Reader.

I have tried it with all of the following releases of ImageMagick and they all have the same result.

ImageMagick-6.3.1-Q16
ImageMagick-6.3.7-Q8
ImageMagick-6.4.0-Q8

If I open the original PDF in Adobe Acrobat 8 and do a "Save As", then the new PDF will convert to a view tiff image (verses being all white).

Any help would be greatly appreciated.

Base filename: img-408120310-0001.pdf
Format: PDF (Portable Document Format)
Class: PseudoClass
Geometry: 792x612+0+0
Type: Grayscale
Endianess: Undefined
Colorspace: Gray
Channel depth:
Gray: 8-bit
Channel statistics:
Gray:
Min: 175 (0.686275)
Max: 255 (1)
Mean: 254.225 (0.996961)
Standard deviation: 0.482562 (0.0018924)
Colors: 29
Histogram:
1: #AFAFAF rgb(175,175,175)
1: #B8B8B8 grey72
1: #C2C2C2 grey76
1: #CFCFCF grey81
1: #DCDCDC gainsboro
1: #E5E5E5 grey90
1: #E7E7E7 rgb(231,231,231)
1: #E6E6E6 rgb(230,230,230)
1: #E9E9E9 rgb(233,233,233)
1: #EBEBEB grey92
2: #EDEDED grey93
2: #EEEEEE rgb(238,238,238)
3: #EFEFEF rgb(239,239,239)
1: #F1F1F1 rgb(241,241,241)
1: #F0F0F0 grey94
2: #F2F2F2 grey95
5: #F3F3F3 rgb(243,243,243)
4: #F4F4F4 rgb(244,244,244)
6: #F5F5F5 grey96
15: #F7F7F7 grey97
5: #F6F6F6 rgb(246,246,246)
11: #F9F9F9 rgb(249,249,249)
12: #F8F8F8 rgb(248,248,248)
27: #FBFBFB rgb(251,251,251)
22: #FAFAFA grey98
29: #FCFCFC grey99
52: #FDFDFD rgb(253,253,253)
374146: #FEFEFE rgb(254,254,254)
110349: #FFFFFF white
Colormap: 256
0: #000000 black
1: #010101 rgb(1,1,1)
2: #020202 rgb(2,2,2)
3: #030303 grey1
4: #040404 rgb(4,4,4)
5: #050505 grey2
6: #060606 rgb(6,6,6)
7: #070707 rgb(7,7,7)
8: #080808 grey3
9: #090909 rgb(9,9,9)
10: #0A0A0A grey4
11: #0B0B0B rgb(11,11,11)
12: #0C0C0C rgb(12,12,12)
13: #0D0D0D grey5
14: #0E0E0E rgb(14,14,14)
15: #0F0F0F grey6
16: #101010 rgb(16,16,16)
17: #111111 rgb(17,17,17)
18: #121212 grey7
19: #131313 rgb(19,19,19)
20: #141414 grey8
21: #151515 rgb(21,21,21)
22: #161616 rgb(22,22,22)
23: #171717 grey9
24: #181818 rgb(24,24,24)
25: #191919 rgb(25,25,25)
26: #1A1A1A grey10
27: #1B1B1B rgb(27,27,27)
28: #1C1C1C grey11
29: #1D1D1D rgb(29,29,29)
30: #1E1E1E rgb(30,30,30)
31: #1F1F1F grey12
32: #202020 rgb(32,32,32)
33: #212121 grey13
34: #222222 rgb(34,34,34)
35: #232323 rgb(35,35,35)
36: #242424 grey14
37: #252525 rgb(37,37,37)
38: #262626 grey15
39: #272727 rgb(39,39,39)
40: #282828 rgb(40,40,40)
41: #292929 grey16
42: #2A2A2A rgb(42,42,42)
43: #2B2B2B grey17
44: #2C2C2C rgb(44,44,44)
45: #2D2D2D rgb(45,45,45)
46: #2E2E2E grey18
47: #2F2F2F rgb(47,47,47)
48: #303030 grey19
49: #313131 rgb(49,49,49)
50: #323232 rgb(50,50,50)
51: #333333 grey20
52: #343434 rgb(52,52,52)
53: #353535 rgb(53,53,53)
54: #363636 grey21
55: #373737 rgb(55,55,55)
56: #383838 grey22
57: #393939 rgb(57,57,57)
58: #3A3A3A rgb(58,58,58)
59: #3B3B3B grey23
60: #3C3C3C rgb(60,60,60)
61: #3D3D3D grey24
62: #3E3E3E rgb(62,62,62)
63: #3F3F3F rgb(63,63,63)
64: #404040 grey25
65: #414141 rgb(65,65,65)
66: #424242 grey26
67: #434343 rgb(67,67,67)
68: #444444 rgb(68,68,68)
69: #454545 grey27
70: #464646 rgb(70,70,70)
71: #474747 grey28
72: #484848 rgb(72,72,72)
73: #494949 rgb(73,73,73)
74: #4A4A4A grey29
75: #4B4B4B rgb(75,75,75)
76: #4C4C4C rgb(76,76,76)
77: #4D4D4D grey30
78: #4E4E4E rgb(78,78,78)
79: #4F4F4F grey31
80: #505050 rgb(80,80,80)
81: #515151 rgb(81,81,81)
82: #525252 grey32
83: #535353 rgb(83,83,83)
84: #545454 grey33
85: #555555 rgb(85,85,85)
86: #565656 rgb(86,86,86)
87: #575757 grey34
88: #585858 rgb(88,88,88)
89: #595959 grey35
90: #5A5A5A rgb(90,90,90)
91: #5B5B5B rgb(91,91,91)
92: #5C5C5C grey36
93: #5D5D5D rgb(93,93,93)
94: #5E5E5E grey37
95: #5F5F5F rgb(95,95,95)
96: #606060 rgb(96,96,96)
97: #616161 grey38
98: #626262 rgb(98,98,98)
99: #636363 grey39
100: #646464 rgb(100,100,100)
101: #656565 rgb(101,101,101)
102: #666666 grey40
103: #676767 rgb(103,103,103)
104: #686868 rgb(104,104,104)
105: #696969 DimGray
106: #6A6A6A rgb(106,106,106)
107: #6B6B6B grey42
108: #6C6C6C rgb(108,108,108)
109: #6D6D6D rgb(109,109,109)
110: #6E6E6E grey43
111: #6F6F6F rgb(111,111,111)
112: #707070 grey44
113: #717171 rgb(113,113,113)
114: #727272 rgb(114,114,114)
115: #737373 grey45
116: #747474 rgb(116,116,116)
117: #757575 grey46
118: #767676 rgb(118,118,118)
119: #777777 rgb(119,119,119)
120: #787878 grey47
121: #797979 rgb(121,121,121)
122: #7A7A7A grey48
123: #7B7B7B rgb(123,123,123)
124: #7C7C7C rgb(124,124,124)
125: #7D7D7D grey49
126: #7E7E7E gray
127: #7F7F7F grey50
128: #808080 fractal
129: #818181 rgb(129,129,129)
130: #828282 grey51
131: #838383 rgb(131,131,131)
132: #848484 rgb(132,132,132)
133: #858585 grey52
134: #868686 rgb(134,134,134)
135: #878787 grey53
136: #888888 rgb(136,136,136)
137: #898989 rgb(137,137,137)
138: #8A8A8A grey54
139: #8B8B8B rgb(139,139,139)
140: #8C8C8C grey55
141: #8D8D8D rgb(141,141,141)
142: #8E8E8E rgb(142,142,142)
143: #8F8F8F grey56
144: #909090 rgb(144,144,144)
145: #919191 grey57
146: #929292 rgb(146,146,146)
147: #939393 rgb(147,147,147)
148: #949494 grey58
149: #959595 rgb(149,149,149)
150: #969696 grey59
151: #979797 rgb(151,151,151)
152: #989898 rgb(152,152,152)
153: #999999 grey60
154: #9A9A9A rgb(154,154,154)
155: #9B9B9B rgb(155,155,155)
156: #9C9C9C grey61
157: #9D9D9D rgb(157,157,157)
158: #9E9E9E grey62
159: #9F9F9F rgb(159,159,159)
160: #A0A0A0 rgb(160,160,160)
161: #A1A1A1 grey63
162: #A2A2A2 rgb(162,162,162)
163: #A3A3A3 grey64
164: #A4A4A4 rgb(164,164,164)
165: #A5A5A5 rgb(165,165,165)
166: #A6A6A6 grey65
167: #A7A7A7 rgb(167,167,167)
168: #A8A8A8 grey66
169: #A9A9A9 DarkGray
170: #AAAAAA rgb(170,170,170)
171: #ABABAB grey67
172: #ACACAC rgb(172,172,172)
173: #ADADAD grey68
174: #AEAEAE rgb(174,174,174)
175: #AFAFAF rgb(175,175,175)
176: #B0B0B0 grey69
177: #B1B1B1 rgb(177,177,177)
178: #B2B2B2 rgb(178,178,178)
179: #B3B3B3 grey70
180: #B4B4B4 rgb(180,180,180)
181: #B5B5B5 grey71
182: #B6B6B6 rgb(182,182,182)
183: #B7B7B7 rgb(183,183,183)
184: #B8B8B8 grey72
185: #B9B9B9 rgb(185,185,185)
186: #BABABA grey73
187: #BBBBBB rgb(187,187,187)
188: #BCBCBC rgb(188,188,188)
189: #BDBDBD grey74
190: #BEBEBE grey
191: #BFBFBF grey75
192: #C0C0C0 silver
193: #C1C1C1 rgb(193,193,193)
194: #C2C2C2 grey76
195: #C3C3C3 rgb(195,195,195)
196: #C4C4C4 grey77
197: #C5C5C5 rgb(197,197,197)
198: #C6C6C6 rgb(198,198,198)
199: #C7C7C7 grey78
200: #C8C8C8 rgb(200,200,200)
201: #C9C9C9 grey79
202: #CACACA rgb(202,202,202)
203: #CBCBCB rgb(203,203,203)
204: #CCCCCC grey80
205: #CDCDCD rgb(205,205,205)
206: #CECECE rgb(206,206,206)
207: #CFCFCF grey81
208: #D0D0D0 rgb(208,208,208)
209: #D1D1D1 grey82
210: #D2D2D2 rgb(210,210,210)
211: #D3D3D3 LightGray
212: #D4D4D4 grey83
213: #D5D5D5 rgb(213,213,213)
214: #D6D6D6 grey84
215: #D7D7D7 rgb(215,215,215)
216: #D8D8D8 rgb(216,216,216)
217: #D9D9D9 grey85
218: #DADADA rgb(218,218,218)
219: #DBDBDB grey86
220: #DCDCDC gainsboro
221: #DDDDDD rgb(221,221,221)
222: #DEDEDE grey87
223: #DFDFDF rgb(223,223,223)
224: #E0E0E0 grey88
225: #E1E1E1 rgb(225,225,225)
226: #E2E2E2 rgb(226,226,226)
227: #E3E3E3 grey89
228: #E4E4E4 rgb(228,228,228)
229: #E5E5E5 grey90
230: #E6E6E6 rgb(230,230,230)
231: #E7E7E7 rgb(231,231,231)
232: #E8E8E8 grey91
233: #E9E9E9 rgb(233,233,233)
234: #EAEAEA rgb(234,234,234)
235: #EBEBEB grey92
236: #ECECEC rgb(236,236,236)
237: #EDEDED grey93
238: #EEEEEE rgb(238,238,238)
239: #EFEFEF rgb(239,239,239)
240: #F0F0F0 grey94
241: #F1F1F1 rgb(241,241,241)
242: #F2F2F2 grey95
243: #F3F3F3 rgb(243,243,243)
244: #F4F4F4 rgb(244,244,244)
245: #F5F5F5 grey96
246: #F6F6F6 rgb(246,246,246)
247: #F7F7F7 grey97
248: #F8F8F8 rgb(248,248,248)
249: #F9F9F9 rgb(249,249,249)
250: #FAFAFA grey98
251: #FBFBFB rgb(251,251,251)
252: #FCFCFC grey99
253: #FDFDFD rgb(253,253,253)
254: #FEFEFE rgb(254,254,254)
255: #FFFFFF white
Rendering intent: Undefined
Resolution: 72x72
Units: Undefined
Filesize: 473.41kb
Interlace: None
Background color: white
Border color: rgb(223,223,223)
Matte color: grey74
Transparent color: black
Page geometry: 792x612+0+0
Dispose: Undefined
Iterations: 0
Compression: Undefined
Orientation: Undefined
Comment: Image generated by GPL Ghostscript (device=pnmraw)

HiResBoundingBox: 792x612+0+0
Signature: 3480f75a4d2b92c4c338949712760fe3742c14fc2a20943c047a9cf0e79c9e28
Tainted: False
User time: 0.016u
Elapsed time: 0:01
Pixels per second: 7.33733mb
Version: ImageMagick 6.3.1 01/04/07 Q16 http://www.imagemagick.org

Without access to the original image (so we can reproduce the problem) we are unable to provide any help.

Can I email it to you?

Try sending a private message (click on the PM button just below this posting).

ImageMagick relies on the Ghostscript delegate program to interpret PDF. Your PDF has image data that is a compressed JBIG2 stream. Ghostscript does not include JBIG support or perhaps the streams are corrupt (the evince program complains: Unexpected EOF in JBIG2 stream). You can see for yourself. Bypass ImageMagick and use Ghostscript directly:

• gs -q -dQUIET -dPARANOIDSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=0 "-sDEVICE=pnmraw" -dTextAlphaBits=4 -dGraphicsAlphaBits=4 "-r72x72" -sOutputFile=blankstuff.pnm blankstuff.pdf
  display blankstuff.pnm

I still need to get these PDF files over to Tiff files. Any ideas on what I could try next?

You were right about JBIG2. I found the following in the PDF:

<</Subtype/Image/Length 31996/Filter/JBIG2Decode/BitsPerComponent 1/ColorSpace/DeviceGray/Width 2200/Height 1700/Type/XObject>>stream

We recommend you use the xpdf library to convert your PDF's to TIFF.

Thanks for your help and your quick responses.