I'm looking for some convenient tool to handle such rotation without changing the file timestamps.
How to losslessly rotate rotate jpeg images *without* a change to the last modified date
image editing
Related Solutions
ImageOptim optimizes images — so they take up less disk space and load faster — by finding best compression parameters and by removing unnecessary comments and color profiles. It handles PNG, JPEG and GIF animations.
ImageOptim seamlessly integrates various optimisation tools: PNGOUT, AdvPNG, Pngcrush, extended OptiPNG, JpegOptim, jpegrescan, jpegtran, and Gifsicle.
Adobe Illustrator.
You probably didn't want to hear this, because it's outrageously expensive, but it's the standard for a reason. Inkscape is free and has a good number of features, but the user experience is pretty terrible. Every other (cheaper) commercial offering I've used lacked even basic features that Illustrator had a decade ago.
I've tried using cheaper programs, but when they cost 1/10th what Illustrator does (or less), they invariably end up being 1/10th the program that Illustrator is, too. I've not actually been able to complete a full image without exporting to SVG, and loading it into Inkscape to finish the job.
Maybe there's something out there I've missed (and I'd love to hear about it), but in my mind, there's two options: suck up having to deal with a lousy UI and use Inkscape, or suck up having to pay $600 and buy Illustrator.
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Best Answer
I'm not aware of any image tools that have this functionality built in, but you can use the built-in UNIX touch command to adjust the timestamps.
touch -r photo.jpeg timestamp. That will create an empty file namedtimestampwith the timestamp of your image (replacephoto.jpegwith the path to your file).touch -r timestamp photo.jpeg. That will copy the timestamp from thetimestampfile back to your image file.rm timestamp.