convert: no images defined `temp3.tiff' @ error/convert.c/ConvertImageCommand/3273

[Rubert]

I am able to convert PDF image to tiff image from terminal. But I am not able to execute the same command through python or java program. I am getting "convert: no images defined `temp3.tiff' @ error/convert.c/ConvertImageCommand/3273." . Any suggestions on how to resolve it?

[snibgo]

What version of IM? What version of Ghostscript? What was your exact command? What is the text output when you insert "-verbose" in the command? Can you convert from other input formats? If so, then I suspect you can't access Ghostscript from within python or java. Perhaps you have a path or privilege problem.

[Rubert]

Thanks for your response! ImageMagick 7.0.8-59 and gs --> 9.27. Below is my python code. I am able to convert tiff image to PDF using the same code. I think I have problem converting PDF images

Code: Select all

convert_exe_name = '/usr/local/bin/convert'

args = [convert_exe_name, 'File3.pdf', 'temp3.tiff']
proc = subprocess.Popen(args, shell=False)
retcode = proc.wait()

[snibgo]

Can you execute a Ghostscript command from python? Perhaps that need the full path to the GS program. If so, then check your delegates.xml file, and ensure that has the same full path.

[Rubert]

This command works for me from my mac terminal(gs -sDEVICE=pngalpha -sOutputFile=gs_out.png -r144 git.pdf). I tried to run the same command through python program. I am not getting any error, however I am not seeing output file anywhere. Below is my python code. What I am missing.

Code: Select all

import sys
import locale
import ghostscript

args = [
    "-sDEVICE=pngalpha",
    "-sOutputFile=/Users/z063183/python/ocr/gs_out.png",
    "-r144",
    "/Users/z063183/python/ocr/git.pdf"
    ]

# arguments have to be bytes, encode them
encoding = locale.getpreferredencoding()
args = [a.encode(encoding) for a in args]

ghostscript.Ghostscript(*args)

[snibgo]

I thought you might try running GS with subprocess.Popen(). Anyhow, if you can't run GS from within python, there is no chance of IM running GS within python.

Sorry, I don't know what the problem is or how to fix it. But you might check privileges of the required files.