Home/ Questions/Q 547831
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-13T11:00:55+00:00

I am converting eps (Encapsulated PostScript) files to jpeg files with ghostscript. A sample

  • 0

I am converting eps (Encapsulated PostScript) files to jpeg files with ghostscript. A sample command I use is:

gswin32.exe -sDEVICE=jpeg -dJPEGQ=100 -dNOPAUSE -dBATCH -dSAFER -r600x600  -dGraphicsAlphaBits=4 -dUseCIEColor  -dEPSCrop -sOutputFile=”a.jpeg” b.eps

The input eps files come with white backgrounds (I only have their clipping path). What I need to do is change this white background to another color in the output images, or it would be even better if I could make them transparent (output file format would be png). How can I do this?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    never tried it myself but you should be able to convert your eps file into png by setting:

    -sDEVICE=pngalpha

    also the pngalpha device has a -dBackgroundColor option:

    -dBackgroundColor=16#RRGGBB (RGB color, default white = 16#ffffff) For
    the pngalpha device only, set the
    suggested background color in the PNG
    bKGD chunk. When a program reading a
    PNG file does not support alpha
    transparency, the PNG library converts
    the image using either a background
    color if supplied by the program or
    the bKGD chunk. One common web browser
    has this problem, so when using on a web page you
    would need to use
    -dBackgroundColor=16#CCCC00 when creating alpha transparent PNG images
    for use on the page.

    more details here: Details of Ghostscript output devices see section 3.1. PNG file format

    • 0