# Regenerate thumbnails in Shotwell 0.15 (for last month)

DevFeed: [Regenerate thumbnails in Shotwell 0.15 (for last month)](<https://devfeed.tech/articles/regenerate-thumbnails-in-shotwell-0-15-for-last-month-27607.md>)

Original publisher: [Read original article](<https://gagor.pro/2014/01/regenerate-thumbnails-in-shotwell-for-last-month/>)

Author: Tom

Published: 2014-01-08T00:00:00Z

Content type: tutorial

Language: en

Sources: [Tomasz Gągor](<https://devfeed.tech/sources/tomasz-gagor.md>)

Topics: [ImageMagick](<https://devfeed.tech/topics/imagemagick.md>), [Library](<https://devfeed.tech/topics/library.md>), [import](<https://devfeed.tech/topics/import.md>)

Tags: [bash](<https://devfeed.tech/tags/bash.md>), [generate](<https://devfeed.tech/tags/generate.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [imagemagick](<https://devfeed.tech/tags/imagemagick.md>), [install](<https://devfeed.tech/tags/install.md>), [linux](<https://devfeed.tech/tags/linux.md>), [photos](<https://devfeed.tech/tags/photos.md>), [ubuntu](<https://devfeed.tech/tags/ubuntu.md>)

## AI overview

A tutorial explains how to regenerate Shotwell thumbnails for photos modified after import, limiting the operation to images from the last month and noting that ImageMagick must be installed.

## Source excerpt

I love Shotwell external link for it's simplicity and easy export to Piwigo external link . After Christmas I added new photos to my library but after that I made some modifications to them (red eye reduction, etc...). Because Shotwell generate thumbnails only on import, all my modifications were not visible on preview.