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ImageMagick, Ghostscript, poppler, jhead tips and tricks
Michael Hulse edited this page Jul 18, 2017
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Get info about a PDF:
$ brew install poppler
$ pdfimages -list foo.pdf
page num type width height color comp bpc enc interp object ID x-ppi y-ppi size ratio
--------------------------------------------------------------------------------------------
1 0 image 2432 2592 cmyk 4 8 jpeg no 15 0 297 297 3493K 14%
1 1 image 1490 583 cmyk 4 8 jpeg no 16 0 297 297 278K 8.2%
1 2 image 584 107 cmyk 4 8 jpeg no 17 0 297 297 60.2K 25%
1 3 image 928 119 cmyk 4 8 jpeg no 18 0 297 297 36.2K 8.4%
1 4 image 1314 195 index 1 8 image no 19 0 1011 23 137K 55%
1 5 image 1312 195 index 1 8 image no 20 0 1010 23 91.3K 37%
1 6 image 192 2594 cmyk 4 8 jpeg no 21 0 297 297 75.9K 3.9%Fix image orientations:
# http://stackoverflow.com/a/9130900/922323
# jhead is lossless:
$ brew install jhead
# The following works best as a method:
$ shopt -u | grep -q nullglob && changed=true && shopt -s nullglob \
$ jhead -autorot -q -se ${args.inputFile} 2> /dev/null \
$ [ $changed ] && shopt -u nullglob; unset changedOptimize pdf with Ghostscript:
# http://stackoverflow.com/a/10453202/922323
# http://superuser.com/a/373740/201992
# http://superuser.com/a/54043/201992
# http://superuser.com/a/440573/201992
# Get info on options for Ghostscript:
$ gs -sDEVICE=pdfwrite -o /dev/null -c "currentpagedevice { exch ==only ( ) print == } forall"
$ gs -q -dNODISPLAY -c ".distillersettings /prepress get {exch ==only ( ) print ===} forall quit" | sort
# /AutoRotatePages /None
# /CannotEmbedFontPolicy /Error
# /ColorACSImageDict << /ColorTransform 1 /QFactor 0.15 /Blend 1 /HSamples [1 1 1 1] /VSamples [1 1 1 1] >>
# /ColorConversionStrategy /LeaveColorUnchanged
# /ColorImageDownsampleType /Bicubic
# /ColorImageResolution 300
# /CompatibilityLevel 1.5
# /CreateJobTicket true
# /DoThumbnails true
# /EmbedAllFonts true
# /GrayACSImageDict << /ColorTransform 1 /QFactor 0.15 /Blend 1 /HSamples [1 1 1 1] /VSamples [1 1 1 1] >>
# /GrayImageDownsampleType /Bicubic
# /GrayImageResolution 300
# /MonoImageDownsampleType /Subsample
# /MonoImageResolution 1200
# /NeverEmbed []
# /PreserveEPSInfo true
# /PreserveOPIComments true
# /PreserveOverprintSettings true
# /UCRandBGInfo /Preserve
mv input.pdf original.pdf \
&& \
gs \
-dNOPAUSE \
-dBATCH \
-dQUIET \
-dSAFER \
-sDEVICE=pdfwrite \
-dAutoRotatePages=/None \
-dColorConversionStrategy=/LeaveColorUnchanged \
-dColorImageResolution=304 \
-dColorImageDownsampleType=/Bicubic \
-dGrayImageResolution=304 \
-dGrayImageDownsampleType=/Bicubic \
-dMonoImageResolution=1200 \
-dMonoImageDownsampleType=/Subsample \
-dCompatibilityLevel=1.3 \
-dDoThumbnails=true \
-dPreserveOverprintSettings=true \
-sOutputFile=input.pdf \
original.pdf 2> /dev/nullGet details on an image (like, does it have a color profile, etc.):
$ brew install imagemagick
$ identify -verbose 001.jpg
Image: 001.jpg
Format: JPEG (Joint Photographic Experts Group JFIF format)
Mime type: image/jpeg
Class: DirectClass
Geometry: 2622x2660+0+0
Resolution: 304x304
Print size: 8.625x8.75
Units: PixelsPerInch
Type: TrueColor
Endianess: Undefined
Colorspace: sRGB
Depth: 8-bit
Channel depth:
red: 8-bit
green: 8-bit
blue: 8-bit
Channel statistics:
Pixels: 6974520
Red:
min: 0 (0)
max: 255 (1)
mean: 66.0924 (0.259186)
standard deviation: 80.1442 (0.314291)
kurtosis: -0.480609
skewness: 1.06344
entropy: 0.854328
Green:
min: 0 (0)
max: 237 (0.929412)
mean: 65.161 (0.255533)
standard deviation: 71.1905 (0.279179)
kurtosis: -0.307179
skewness: 1.03909
entropy: 0.891357
Blue:
min: 0 (0)
max: 235 (0.921569)
mean: 48.2611 (0.189259)
standard deviation: 69.4196 (0.272234)
kurtosis: 0.482291
skewness: 1.44934
entropy: 0.804214
Image statistics:
Overall:
min: 0 (0)
max: 255 (1)
mean: 59.8381 (0.234659)
standard deviation: 73.7343 (0.289154)
kurtosis: -0.0739547
skewness: 1.19747
entropy: 0.849966
Rendering intent: Perceptual
Gamma: 0.454545
Chromaticity:
red primary: (0.64,0.33)
green primary: (0.3,0.6)
blue primary: (0.15,0.06)
white point: (0.3127,0.329)
Background color: white
Border color: srgb(223,223,223)
Matte color: grey74
Transparent color: black
Interlace: None
Intensity: Undefined
Compose: Over
Page geometry: 2622x2660+0+0
Dispose: Undefined
Iterations: 0
Compression: JPEG
Quality: 100
Orientation: Undefined
Properties:
date:create: 2016-11-30T21:57:24-08:00
date:modify: 2016-11-30T21:57:24-08:00
jpeg:colorspace: 2
jpeg:sampling-factor: 1x1,1x1,1x1
signature: c90922581b5720de5aecdb71f49fbad570f5ab38b53998b97333e0eabf0bbb87
Artifacts:
filename: 001.jpg
verbose: true
Tainted: False
Filesize: 3.566MB
Number pixels: 6.975M
Pixels per second: 41.03MB
User time: 0.170u
Elapsed time: 0:01.170
Version: ImageMagick 6.9.6-5 Q16 x86_64 2016-11-15 http://www.imagemagick.orgRead EXIF info:
$ identify -format '%[EXIF:*]' 010.jpg
exif:ApertureValue=7400879/1000000
exif:CustomRendered=0
exif:DateTime=2012:01:17 20:00:22
exif:DateTimeDigitized=2012:01:07 14:37:44
exif:DateTimeOriginal=2012:01:07 14:37:44
exif:ExifOffset=216
exif:ExifVersion=48, 50, 51, 48
exif:ExposureBiasValue=0/1
exif:ExposureMode=0
exif:ExposureProgram=3
exif:ExposureTime=1/40
exif:Flash=16
exif:FNumber=13/1
exif:FocalLength=70/1
exif:FocalPlaneResolutionUnit=2
exif:FocalPlaneXResolution=5616000/1459
exif:FocalPlaneYResolution=3744000/958
exif:ISOSpeedRatings=100
exif:Make=Canon
exif:MaxApertureValue=4/1
exif:MeteringMode=5
exif:Model=Canon EOS 5D Mark II
exif:ResolutionUnit=2
exif:SceneCaptureType=0
exif:ShutterSpeedValue=5321928/1000000
exif:Software=Adobe Photoshop Lightroom 3.6 (Macintosh)
exif:SubjectDistance=126/10
exif:SubSecTimeDigitized=70
exif:SubSecTimeOriginal=70
exif:thumbnail:Compression=6
exif:thumbnail:JPEGInterchangeFormat=828
exif:thumbnail:JPEGInterchangeFormatLength=22426
exif:thumbnail:ResolutionUnit=2
exif:thumbnail:XResolution=72/1
exif:thumbnail:YResolution=72/1
exif:WhiteBalance=0
exif:XResolution=304/1
exif:YResolution=304/1Short version to get properties:
$ identify -ping test.jpg
test.jpg JPEG 2100x1500 2100x1500+0+0 8-bit sRGB 222KB 0.000u 0:00.009Using Exiftool:
$ exiftool -a -u -g1 test.jpg
---- ExifTool ----
ExifTool Version Number : 10.36
---- System ----
File Name : test.jpg
Directory : .
File Size : 217 kB
File Modification Date/Time : 2016:12:24 12:07:52-08:00
File Access Date/Time : 2016:12:24 12:45:18-08:00
File Inode Change Date/Time : 2016:12:24 12:08:13-08:00
File Permissions : rw-r--r--
---- File ----
File Type : JPEG
File Type Extension : jpg
MIME Type : image/jpeg
Exif Byte Order : Big-endian (Motorola, MM)
Image Width : 2100
Image Height : 1500
Encoding Process : Baseline DCT, Huffman coding
Bits Per Sample : 8
Color Components : 3
Y Cb Cr Sub Sampling : YCbCr4:4:4 (1 1)
---- IFD0 ----
Orientation : Horizontal (normal)
X Resolution : 300
Y Resolution : 300
Resolution Unit : inches
Software : Adobe Photoshop CC 2017 (Macintosh)
Modify Date : 2016:12:24 12:07:49
---- ExifIFD ----
Color Space : sRGB
Exif Image Width : 2100
Exif Image Height : 1500
---- IFD1 ----
Compression : JPEG (old-style)
X Resolution : 72
Y Resolution : 72
Resolution Unit : inches
Thumbnail Offset : 322
Thumbnail Length : 920
---- Photoshop ----
IPTC Digest : 00000000000000000000000000000000
Print Info 2 : ...printOutput.PstSbool.InteenumInteClrm.printSixteenBitbool.printerNameTEXT..printProofSetupObjc.Proof Setup.proofSetup.Bltnenum.builtinProof.proofCMYK
Print Style : ...printOutputOptions.CptnboolClbrboolRgsMboolCrnCboolCntCboolLblsboolNgtvboolEmlDboolIntrboolBckgObjc.RGBC.Rd doub@o�Grn doub@o�Bl doub@o�BrdTUntF#RltBld UntF#RltRsltUntF#Pxl@r�.vectorDatabool.PgPsenumPgPsPgPCLeftUntF#RltTop UntF#RltScl UntF#Prc@Y.cropWhenPrintingbool.cropRectBottomlong.cropRectLeftlong.cropRectRightlong.cropRectToplong
X Resolution : 300
Displayed Units X : inches
Y Resolution : 300
Displayed Units Y : inches
Print Style : Centered
Print Position : 0 0
Print Scale : 1
Global Angle : 90
Global Altitude : 30
Print Flags : 0 0 0 0 0 0 0 0 1
Print Flags Info : ..
Color Halftoning Info : /ff.lff../ff.���..2.Z..5.-..
Color Transfer Funcs : ����������������������.�����������������������.�����������������������.�����������������������.�
Grid Guides Info : ..@.@
URL List :
Slices Group Name : test
Num Slices : 1
Pixel Aspect Ratio : 1
IDs Base Value : 1
Photoshop Thumbnail : (Binary data 920 bytes, use -b option to extract)
Has Real Merged Data : Yes
Writer Name : Adobe Photoshop
Reader Name : Adobe Photoshop CC 2017
Photoshop Quality : 12
Photoshop Format : Standard
Progressive Scans : 3 Scans
---- XMP-x ----
XMP Toolkit : Adobe XMP Core 5.6-c138 79.159824, 2016/09/14-01:09:01
---- XMP-xmp ----
Creator Tool : Adobe Photoshop CC 2017 (Macintosh)
Create Date : 2016:12:24 12:07:49-08:00
Metadata Date : 2016:12:24 12:07:49-08:00
Modify Date : 2016:12:24 12:07:49-08:00
---- XMP-dc ----
Format : image/jpeg
---- XMP-xmpMM ----
Instance ID : xmp.iid:421642fc-b721-4e31-b57f-74ac6f0c4a8e
Document ID : xmp.did:421642fc-b721-4e31-b57f-74ac6f0c4a8e
Original Document ID : xmp.did:421642fc-b721-4e31-b57f-74ac6f0c4a8e
History Action : created
History Instance ID : xmp.iid:421642fc-b721-4e31-b57f-74ac6f0c4a8e
History When : 2016:12:24 12:07:49-08:00
History Software Agent : Adobe Photoshop CC 2017 (Macintosh)
---- XMP-photoshop ----
Color Mode : RGB
ICC Profile Name : sRGB IEC61966-2.1
---- ICC-header ----
Profile CMM Type : Lino
Profile Version : 2.1.0
Profile Class : Display Device Profile
Color Space Data : RGB
Profile Connection Space : XYZ
Profile Date Time : 1998:02:09 06:49:00
Profile File Signature : acsp
Primary Platform : Microsoft Corporation
CMM Flags : Not Embedded, Independent
Device Manufacturer : IEC
Device Model : sRGB
Device Attributes : Reflective, Glossy, Positive, Color
Rendering Intent : Media-Relative Colorimetric
Connection Space Illuminant : 0.9642 1 0.82491
Profile Creator : HP
Profile ID : 0
---- ICC_Profile ----
Profile Copyright : Copyright (c) 1998 Hewlett-Packard Company
Profile Description : sRGB IEC61966-2.1
Media White Point : 0.95045 1 1.08905
Media Black Point : 0 0 0
Red Matrix Column : 0.43607 0.22249 0.01392
Green Matrix Column : 0.38515 0.71687 0.09708
Blue Matrix Column : 0.14307 0.06061 0.7141
Device Mfg Desc : IEC http://www.iec.ch
Device Model Desc : IEC 61966-2.1 Default RGB colour space - sRGB
Viewing Cond Desc : Reference Viewing Condition in IEC61966-2.1
Luminance : 76.03647 80 87.12462
Technology : Cathode Ray Tube Display
Red Tone Reproduction Curve : (Binary data 2060 bytes, use -b option to extract)
Green Tone Reproduction Curve : (Binary data 2060 bytes, use -b option to extract)
Blue Tone Reproduction Curve : (Binary data 2060 bytes, use -b option to extract)
---- ICC-view ----
Viewing Cond Illuminant : 19.6445 20.3718 16.8089
Viewing Cond Surround : 3.92889 4.07439 3.36179
Viewing Cond Illuminant Type : D50
---- ICC-meas ----
Measurement Observer : CIE 1931
Measurement Backing : 0 0 0
Measurement Geometry : Unknown
Measurement Flare : 0.999%
Measurement Illuminant : D65
---- Adobe ----
DCT Encode Version : 100
APP14 Flags 0 : [14]
APP14 Flags 1 : (none)
Color Transform : YCbCr
---- Composite ----
Image Size : 2100x1500
Megapixels : 3.1
Thumbnail Image : (Binary data 920 bytes, use -b option to extract)Another tool, mdls:
$ mdls test.jpg
_kMDItemOwnerUserID = 501
kMDItemBitsPerSample = 32
kMDItemColorSpace = "RGB"
kMDItemContentCreationDate = 2016-12-24 20:07:49 +0000
kMDItemContentModificationDate = 2016-12-24 20:07:49 +0000
kMDItemContentType = "public.jpeg"
kMDItemContentTypeTree = (
"public.jpeg",
"public.item",
"public.data",
"public.image",
"public.jpeg",
"public.content"
)
kMDItemCreator = "Adobe Photoshop CC 2017 (Macintosh)"
kMDItemDateAdded = 2016-12-24 20:07:52 +0000
kMDItemDisplayName = "test.jpg"
kMDItemFinderComment = "Hello world!"
kMDItemFSContentChangeDate = 2016-12-24 20:07:52 +0000
kMDItemFSCreationDate = 2016-12-24 20:07:52 +0000
kMDItemFSCreatorCode = "8BIM"
kMDItemFSFinderFlags = 0
kMDItemFSHasCustomIcon = (null)
kMDItemFSInvisible = 0
kMDItemFSIsExtensionHidden = 0
kMDItemFSIsStationery = (null)
kMDItemFSLabel = 0
kMDItemFSName = "test.jpg"
kMDItemFSNodeCount = (null)
kMDItemFSOwnerGroupID = 20
kMDItemFSOwnerUserID = 501
kMDItemFSSize = 222341
kMDItemFSTypeCode = "JPEG"
kMDItemHasAlphaChannel = 0
kMDItemKind = "JPEG image"
kMDItemLastUsedDate = 2016-12-24 20:24:09 +0000
kMDItemLogicalSize = 222341
kMDItemOrientation = 0
kMDItemPhysicalSize = 225280
kMDItemPixelCount = 3150000
kMDItemPixelHeight = 1500
kMDItemPixelWidth = 2100
kMDItemProfileName = "sRGB IEC61966-2.1"
kMDItemResolutionHeightDPI = 300
kMDItemResolutionWidthDPI = 300
kMDItemUseCount = 1
kMDItemUsedDates = (
"2016-12-24 08:00:00 +0000"
)Just get the "Comments" section:
$ mdls -raw -name kMDItemFinderComment test.jpgScale a PDF using pdfScale:
# LuLu A5, including trim:
pdfscale -v -v -r 'custom in 5.955 8.515' -f disable -s 1.1 foo.pdf