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Rotate embedded thumbs for XP

Posted: Sun Aug 05, 2007 11:39 pm
by xntest
Hello,

I find out the very fine function from nconvert and xnview to rotate JPeG dependent on EXIF.

My problem is that XP SP2 do not shows thumbnails in the correct rotation after pictures are rotated with nconvert (4,79) or xnview.


I do not find a command line option for nconvert to renew embedded thumbnails.

BTW: It's important for me that the date of changing of the jpeg files stays original.

Is there a way out?


Thanks a lot

Re: rotete embedded thumbs for XP

Posted: Mon Aug 06, 2007 7:09 am
by xnview
xntest wrote:Hello,

I find out the very fine function from nconvert and xnview to rotate JPeG dependent on EXIF.

My problem is that XP SP2 do not shows thumbnails in the correct rotation after pictures are rotated with nconvert (4,79) or xnview.


I do not find a command line option for nconvert to renew embedded thumbnails.

BTW: It's important for me that the date of changing of the jpeg files stays original.

Is there a way out?
You have -keepfiledate, for the thumbnail problem i must add a command to recreate thumbnail in nconvert

Posted: Mon Aug 06, 2007 7:23 am
by xntest
That would be fine.

Thanks for your effort.

Posted: Sun Aug 26, 2007 1:52 pm
by xntest
Hello again!

Since my last post I tested nconvert lossless rotate function several times because some people told me that nconvert rotates thumb automatically.

I find out that nconvert do so only somteimes.
Sometimes it rotates the thumbs and somtimes it doesn't.

I tried to find out on what the behaviour depends but I do not know it.


I use nconvert in a little script so it is sure that the command line is allways the same.

I hope it helps :)

Posted: Mon Aug 27, 2007 12:09 pm
by xnview
xntest wrote:Hello again!

Since my last post I tested nconvert lossless rotate function several times because some people told me that nconvert rotates thumb automatically.

I find out that nconvert do so only somteimes.
Sometimes it rotates the thumbs and somtimes it doesn't.

I tried to find out on what the behaviour depends but I do not know it.


I use nconvert in a little script so it is sure that the command line is allways the same.

I hope it helps :)
Could you send a file when the thumbnail is not rotated?

Posted: Mon Aug 27, 2007 12:46 pm
by xntest
I wanted to do it.
But when I was looking for a way to upload a file i found out that not nconvert is the problem.
When I copy a file from one PC to another the Thumbs are shown in correct direction.

So, all I have to do is to delete Thumbs.db and than to reopen the folder.


Thanks for your help and sorry for the trouble.