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This is for Windows, but I could run a virtual Linux client if there is an awesome solution not in Windows.

I keep a master photo collection, and I need to have it automatically sync to e resized copy for viewing on other slower devices.

How can I achieve this?

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Shopping recommendations are off topic. – ChrisF Jan 23 '13 at 13:07
Wasn't looking for anything to buy. But some system to manage my photo collection to maintain a resized copy. For all I know, it might be possible with a few lines of powershell or similar. I was just curious if someone already had a well-functioning solution. Could you recommend a more appropriate place to ask this question? – jonas Jan 23 '13 at 13:37
I've cleared the close votes here and reopened the question. It's based on an actual problem and seems specific enough so as not to become not constructive and attract a list of answers. I've removed the part where you were asking for "a tool" to do something—simply ask about what you need done. – slhck Jan 23 '13 at 14:18
@slhck Thank you. – jonas Jan 23 '13 at 19:43

If you are happy with a linux solution, then this would do it:


SMALLSIZE=/path/to/smallphotos  # do not locate within FULLSIZE directory

find . -name '*.jpg' -exec if [ ! -f  $SMALLSIZE{} ] then; do convert -resize $MAXWIDTHx$MAXHEIGHT $FULLSIZE{} $SMALLSIZE{} ; done \;

So this script looks for all files in the FULLSIZE directory, and below. It uses an if to check if there is a file with the same name in SMALLSIZE directory, and if not, uses the imagemagick convert command to resize the image to fit in a box MAXWIDTH wide, and MAXHEIGHT high and puts it into the SMALLSIZE directory.

Sorry, I didn't have time to test the script, hopefully it is bugfree.

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Thanks Paul, this might do it. I will wait a while and see if someone can do something similar in windows, since it's my preferred platform. – jonas Jan 23 '13 at 13:39
Also, I would have to implement support for more file system operations. In case files are moved around in the master collection or deleted, they should do the same in the resized collection. – jonas Jan 23 '13 at 13:49
@jonas: I'm sure the above can be translated to a batch file, PowerShell script etc., but it won't auto-sync. Perhaps you can schedule it to run periodically using Task Scheduler... – Karan Jan 23 '13 at 16:59
@jonas Yeah, I was thinking that too - what about modifications as well - if you do some processing on a file, you'd want it to be reflected in the small version – Paul Jan 23 '13 at 21:54

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