IM skews font in vector eps files

[LadyCygnus]

I'm using ImageMagic command line to convert images from eps into png. When a figure (eps vector created with some version of Illustrator) is passed through ImageMagick (either command line or opened in the IM viewer) it comes out with skewed font. Note - it's not italic, just skewed - actual italic font displays as "super-italic".

I also have equations created using MathType which do not have this problem.

Both types of images generally have Times New Roman as the font and no errors about missing fonts are displayed be IM. My first guess was a font issue - but TNR is the most generic font one can use.

I've done some searches and keep coming up with results explaining how to skew the entire image (as far as I can tell this is not happening) or different commands for getting text to appear (I don't want ANYTHING to change in the images).

The command I'm using to convert the images is: convert -density 150 imageName.eps -fill none imageName.png (although as I said, it displayed the skewed font in the viewer as well).

OS: Windows 7 Pro (64 bit)
ImageMagick 6.8.8 Q16 (64bit)
GhostScript 9.14 (for working with eps files)

***********************************************************
SOLVED: Font issue with GhostScript. Solution appears to be to add the system variable GS_FONTPATH=C:\Windows\Fonts and restart. Maybe also a couple other things...but I'm pretty sure that's what solved it.

[snibgo]

I don't have other software that can view EPS files, so I can't help.

If you post a sample EPS file somewhere like dropbox.com and paste the URL here, someone might view the image with other software (eg Adobe something) and comment on any difference to ImageMagick.

[LadyCygnus]

Here are the files: https://app.box.com/s/9e1wnasg7uld3bw345bv

I've included
- original eps files (figure & equation)
- png files using the convert command with IM
- png screenshots of the eps files opened in IM viewer.

When I open the files using Adobe Illustrator they show up fine (roman text). When I open up the figure with IM it opens up with the text skewed - the equation works just fine.

[fmw42]

Your eps image is CMYK and PNG does not support CMYK.

I tried

convert -density 300 figure.eps figure.png
convert -density 300 -colorspace sRGB figure.eps figure.png
convert -density 300 -colorspace sRGB -strip figure.eps figure.png
convert -density 300 figure.eps figure.tif

They all produced slanted text.

But if I open your eps in Photoshop and change the colorspace to RGB and save as eps and then do

convert -density 300 figure2.eps figure2.png

It does not have slanted text, but the background is white (in both the eps and png image)

I am running IM 6.8.8.10 Q16 Mac OSX

[LadyCygnus]

Your eps image is CMYK and PNG does not support CMYK.

But if I open your eps in Photoshop and change the colorspace to RGB and save as eps and then do

...yes......and no.

When I open the eps file in Photoshop (which rasterizes it), set the colorspace to RGB and save as a Photoshop EPS it works in IM
When I open the eps file in Illustator and set the colorspace to RGB (and save) it still fails in IM. I tried unchecking "include CMYK in postscript" - still no go.

So apparently something in the way Photoshop saves an eps file in the RGB format "fixes" the problem.

Now...these eps files (and were talking about several thousand) were originally made for print. Although they are grayscale images - they are all probably in the CMYK colorspace - and would probably need to stay in that colorspace for print (RGB won't fair to well at a printer).

So...I NEED to start with CMYK eps files and get to RGB png files without the font becoming wonky. Note - these are grayscale images so color conversion issues are not a problem. Is there any way with ImageMagick to convert from CMYK to RGB in such a way to retain the shapes of the elements in the image?

(note - I'm off to research this too - I'm sure this NEW question has been answered somewhere).

[LadyCygnus]

Things NOT working:

Trying to convert the CMYK eps to RGB eps first - then convert eps to png

Code: Select all

convert -density 300 -colorspace cmyk figure.eps -fill none -colorspace rgb figure_eps2RGBeps.eps
convert -density 300 figure_eps2RGBeps.eps -fill none figure_RGBeps2png.png

removed fill option (not really necessary since this ONE image doesn't have a transparent background)

Code: Select all

convert -density 300 -colorspace cmyk figure.eps -colorspace rgb figure_eps2RGBpngREMfill.png

converting to jpg (yea I know - but it was a shot in the dark

Code: Select all

convert -density 300 -colorspace cmyk figure.eps -colorspace rgb figure_eps2RGBjpg.jpg

(note I will edit with new trials as I come across them)

[fmw42]

I am not an expert on eps files nor photoshop or illustrator. However, the verbose information for your figure.eps file shows spot colors with italics fonts. IM does not know how to deal with spot colors. So this may be your issue? It also has a field xmpTPg:HasVisibleTransparency: False that may be causing the white background?

Code: Select all

    ps:SpotColor-0: font TimesNewRomanPS-ItalicMT
    ps:SpotColor-1: procset Adobe_CoolType_Utility_T42 1.0 0
    ps:SpotColor-2: procset Adobe_CoolType_Utility_MAKEOCF 1.23 0
    ps:SpotColor-3: procset Adobe_CoolType_Core 2.31 0
    ps:SpotColor-4: procset Adobe_AGM_Core 2.0 0
    ps:SpotColor-5: procset Adobe_AGM_Utils 1.0 0
    ps:SpotColor-6: TimesNewRomanPS-ItalicMT
    ps:SpotColor-7: TimesNewRomanPS-ItalicMT
    ps:SpotColor-8: 
    ps:SpotColor-9: 
    rdf:Alt:
               
            
    rdf:Bag: 
               
               
            
    signature: f899856c08b8355c2e7a6bd31a28e634706a2c298928bd5104e7e5f9ef11de27
    stDim:h: 70.157471
    stDim:unit: Picas
    stDim:w: 49.620443
    xmp:CreateDate: 2012-01-25T14:05:15-05:00
    xmp:CreatorTool: Adobe Illustrator CS5.1
    xmpTPg:HasVisibleOverprint: True
    xmpTPg:HasVisibleTransparency: False
    xmpTPg:NPages: 1
  Profiles:
    Profile-xmp: 37025 bytes
  Artifacts:
    filename: figure.eps
    verbose: true
 

My suspicion is that the default font is italic, since even stripping the meta data to remove the spot fields and doing

Code: Select all

convert -density 300 -colorspace sRGB -background none figure.eps -strip EPS3:figure2.eps

shows the same slanted results.

[fmw42]

Things NOT working:

Trying to convert the CMYK eps to RGB eps first - then convert eps to png

Code: Select all

convert -density 300 -colorspace cmyk figure.eps -fill none -colorspace rgb figure_eps2RGBeps.eps
convert -density 300 figure_eps2RGBeps.eps -fill none figure_RGBeps2png.png

(note I will edit with new trials as I come across them)

The proper way to convert vector files from cmyk to rgb (if there are not profiles) is

Code: Select all

convert -density 300 -colorspace sRGB figure.eps figure.png

But I tried that above with no success.

[LadyCygnus]

I am not an expert on eps files nor photoshop or illustrator. However, the verbose information for your figure.eps file shows spot colors with italics fonts. IM does not know how to deal with spot colors. So this may be your issue?

My suspicion is that the default font is italic, since even stripping the meta data to remove the spot fields and doing

Code: Select all

convert -density 300 -colorspace sRGB -background none figure.eps -strip EPS3:figure2.eps

shows the same slanted results.

I have the file open in illustrator - there are no spot colors used in the file at all (when I do "select unused swatches" it only comes up with none, registration, white, & black as used). Both white and black are process CMYK. I'm looking at the font and it's TNR Regular 10pt.

-- I know well that programs can hide stuff...but I'm mightily confused by this.

It also has a field xmpTPg:HasVisibleTransparency: False that may be causing the white background?

The "-fill none" part of my convert line was for figures that did have a transparent background - to retain it. I forgot to remove it for this example and it really doesn't matter terribly at this point (maybe at some future point I'll clean the files so they are all the same).

[LadyCygnus]

PS - I really appreciate the effort you all are making! At least now I have a basis to go on -- and it's one I would have never thought to consider.

[fmw42]

check your eps file in in IM to see the spot colors.

Code: Select all

convert figure.eps -verbose info:

That was how I found the spot colors. But even after I stripped them out, the problem still exists. It could be a bug in IM. I just do not know. It is odd that converting to RGB in PS and saving works, but with a white background. However, converting to sRGB with IM is not keeping the TNR plain and is using italics.

On the other hand, perhaps it is due to an old version of Illustrator, since I can resave as RGB in PS and it works fine.

Do you have a current version of Illustrator?

[LadyCygnus]

Original file uploaded to box.com was the original created with Illustrator R15.1 (CS 5)
I've been playing with the file on my computer and at some point saved it using R17 (or CC). I suspect this happened when trying to save as an RGB format in Illustrator. It's still producing the same errors.

Just to verify I saved the file in CC (64-bit)....(and I just opened the wrong adobe product...now crashed illustrator...)

Opening the file and saving in CC didn't help. HOWEVER, opening the file, selecting all, copying, open a NEW file, paste & save does appear to produce a workable file.

I've uploaded the working eps to the box.com account: https://app.box.com/s/9e1wnasg7uld3bw345bv

Interestingly, when running -verbose on it, it still has 6 spot colors, but the three "font" spot colors are gone. I feel like we are inching closer to the actual problem/solution (which hopefully isn't to recreate all these eps files by hand).

I already have a script that reads the MathType eps files and changes one value in them (Euros and MathType don't play well together). I'm tempted to try the same thing with this and find the "code" assigning these values and strip them out. [edit: the only thing in the text portion that comes close to looking like a declaration of a font is in the comments section - so this is probably a dead idea]

[fmw42]

HOWEVER, opening the file, selecting all, copying, open a NEW file, paste & save does appear to produce a workable file.

I've uploaded the working eps to the box.com account: https://app.box.com/s/9e1wnasg7uld3bw345bv

Interestingly, when running -verbose on it, it still has 6 spot colors, but the three "font" spot colors are gone. I feel like we are inching closer to the actual problem/solution (which hopefully isn't to recreate all these eps files by hand).

There must still be something in the xmp profile, because when I used -strip to remove all the spot parameters, it still did not work.

Profiles:
Profile-xmp: 37025 bytes

[LadyCygnus]

There must still be something in the xmp profile, because when I used -strip to remove all the spot parameters, it still did not work.

Profiles:
Profile-xmp: 37025 bytes

Just to clarify - this is when you use -strip on the original figure.eps file? When I do that I get a black box, so I'm probably using it wrong.

Code: Select all

convert figure.eps -strip StripTest.eps

Although when I do this on the figure_64new.eps file (which is already a "good" file) I get a negative of the eps - so it may still be a problem with the original eps file.

[fmw42]

This is what I did.

Code: Select all

convert -density 300 -colorspace sRGB -background none figure.eps -strip EPS3:figure2.eps

The result looks like the input except for the slanted text. All the spot meta data is gone

Code: Select all

Image: figure2.eps
  Format: PS (PostScript)
  Mime type: application/postscript
  Class: DirectClass
  Geometry: 340x168+0+0
  Resolution: 72x72
  Print size: 4.72222x2.33333
  Units: Undefined
  Type: PaletteAlpha
  Endianess: Undefined
  Colorspace: sRGB
  Depth: 16/8-bit
  Channel depth:
    red: 8-bit
    green: 8-bit
    blue: 8-bit
    alpha: 1-bit
  Channel statistics:
    Red:
      min: 8995 (0.137255)
      max: 65535 (1)
      mean: 63359 (0.966797)
      standard deviation: 10106.9 (0.154221)
      kurtosis: 21.3809
      skewness: -4.75065
    Green:
      min: 7967 (0.121569)
      max: 65535 (1)
      mean: 63319.5 (0.966194)
      standard deviation: 10289.7 (0.157011)
      kurtosis: 21.384
      skewness: -4.75073
    Blue:
      min: 8224 (0.12549)
      max: 65535 (1)
      mean: 63329 (0.966339)
      standard deviation: 10246.1 (0.156346)
      kurtosis: 21.3728
      skewness: -4.75
    Alpha:
      min: 0 (0)
      max: 65535 (1)
      mean: 3432.79 (0.052381)
      standard deviation: 14600.8 (0.222794)
      kurtosis: 14.1462
      skewness: -4.01823
  Image statistics:
    Overall:
      min: 0 (0)
      max: 65535 (1)
      mean: 63027.5 (0.961737)
      standard deviation: 11469.5 (0.175013)
      kurtosis: 20.1793
      skewness: -4.63951
  Alpha: srgba(255,255,255,0)   #FFFFFFFFFFFF0000
  Colors: 16
  Histogram:
      1374: ( 8995, 7967, 8224,65535) #23231F1F2020 srgba(35,31,32,1)
       151: (12850,11822,12079,65535) #32322E2E2F2F srgba(50,46,47,1)
        99: (16448,15677,15934,65535) #40403D3D3E3E srgba(64,61,62,1)
       102: (20303,19532,19789,65535) #4F4F4C4C4D4D srgba(79,76,77,1)
       132: (24158,23387,23387,65535) #5E5E5B5B5B5B srgba(94,91,91,1)
        41: (27756,27242,27242,65535) #6C6C6A6A6A6A srgba(108,106,106,1)
       115: (31611,31097,31097,65535) #7B7B79797979 srgba(123,121,121,1)
       285: (35466,34952,34952,65535) #8A8A88888888 srgba(138,136,136,1)
        62: (39064,38550,38807,65535) #989896969797 srgba(152,150,151,1)
        98: (42919,42405,42662,65535) #A7A7A5A5A6A6 srgba(167,165,166,1)
        71: (46774,46260,46517,65535) #B6B6B4B4B5B5 srgba(182,180,181,1)
       148: (50372,50115,50372,65535) #C4C4C3C3C4C4 srgba(196,195,196,1)
        98: (54227,53970,53970,65535) #D3D3D2D2D2D2 srgba(211,210,210,1)
        89: (58082,57825,57825,65535) #E2E2E1E1E1E1 srgba(226,225,225,1)
       127: (61680,61680,61680,65535) #F0F0F0F0F0F0 grey94
     54128: (65535,65535,65535,    0) #FFFFFFFFFFFF0000 srgba(255,255,255,0)
  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: srgba(223,223,223,1)
  Matte color: grey74
  Transparent color: none
  Interlace: None
  Intensity: Undefined
  Compose: Over
  Page geometry: 340x168+0+0
  Dispose: Undefined
  Iterations: 0
  Compression: Undefined
  Orientation: Undefined
  Properties:
    date:create: 2014-04-10T22:13:45-07:00
    date:modify: 2014-04-10T22:13:45-07:00
    ps:HiResBoundingBox: 340.08x168.24+0+0
    ps:Level: Adobe-3.0 EPSF-3.0

    signature: 93aa4c46985251039a578c5a945b8f8966d65499e5c5df2818de4087abedfee1
  Artifacts:
    filename: figure2.eps
    verbose: true
  Tainted: False
  Filesize: 6.96KB
  Number pixels: 57.1K
  Pixels per second: 0B
  User time: 0.000u
  Elapsed time: 0:01.000
  Version: ImageMagick 6.8.8-10 Q16 x86_64 2014-03-28 http://www.imagemagick.org