Transform image and save as same filename

Discussions on NConvert - the command line tool for image conversion and manipulation

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uraeus1618
Posts: 3
Joined: Tue Sep 27, 2005 9:22 am

Transform image and save as same filename

Post by uraeus1618 »

Hi,
It's been a few years since i used nconvert so forgive my rustiness,
I'm trying to rotate an image +90 degrees and retain the same file name. That is I don't wish a copy made like image_1.jpg eg
Using 32 and 64 bit versions on 64bit vista
nconvert -rotate 90 image.jpg
I tried
nconvert -rotate 90 image.jpg -o image.jpg [can't open file -o] saves a numbered file
nconvert -rotate 90 image.jpg -overwrite [can't open file -o]
nconvert -rotate 90 image.jpg -o image.jpg -overwrite [can't open file -o] saves a numbered file
and in desperation
nconvert -rotate 90 image.jpg -o image.jpg -D [just laughs at me]

In this link http://newsgroup.xnview.com/viewtopic.php?t=349
we get
"NConvert overwrites existing files by default. Therefore there is no special parameter to force NConvert overwriting files available."
It's an old post though.

Is there a way through this? I don't mind using a placeholder/temporary file but i thought i'd try a simple solution first
thank you
And thanks for a fantastic piece of art
cday
XnThusiast
Posts: 4021
Joined: Sun Apr 29, 2012 9:45 am
Location: Cheltenham, U.K.

Re: Transform image and save as same filename

Post by cday »

The following works with a recent version of NConvert:

nconvert -rotate 90 -overwrite image.jpg

In the NConvert syntax the file or files to be processed come last, and -o is only required if the output file is to have a new file name or extension, I believe. I don't know the history of overwriting files in NConvert, but -overwrite is included in the current -help listing.
uraeus1618
Posts: 3
Joined: Tue Sep 27, 2005 9:22 am

Re: Transform image and save as same filename

Post by uraeus1618 »

Now that's much better, thank you cday