It could be ported to Linux and OSX with low effort. The source could be ported for Linux or OSX. This application is compiled for Microsoft Windows 64Bit, but Windows GUI Application - ImageResize.exe Multithreading for better bulk performance.Quality/Size control - jpeg quality and png compression.Easy maintenace of existing image galleries.Bulk resizing of several files for several resolutions.Resampling jpg and png files with a good quality jpg images or entire image directories by simply dragging and dropping them onto the executable.My own, which fullfills my special needs: High resolution images to web images at a lower resolution.įormerly I used JpgIlluminator or IrfanView for this purpose, whichĪre excellent tools for their purposes. I wrote this little tool for my website, where I sometimes have to resample IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. If you need to do some more advanced find commands that use regex this should help.Image Resize Copyright (c) 2023 Jan Schirrmacher, Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify and merge copies of the Software, subject to the following conditions: Make sure to compress your images with lossless ( guide) or lossy compression ( guide). You can use the top command and look for jpegoptim processes once in a while.Ĭheck the folder size again du -sh foldername sudo apt-get install screenĬreate a new screen session, press space or enter at the intro screen screenĮxecute the script bash ~/scripts/batch-image-resize.shĭetach the screen with Ctrl+A and pressing D (detach). Screen will ensure the batch command keeps on running even if your SSH session is terminated. #resize png or jpg to either height or width, keeps proportions using imagemagick It will overwrite your original images so make sure you have a backup before running this!įOLDER="/var/www//wp-content/uploads" WIDTH is the max width and HEIGHT is the max height. Paste the script below, remember to change the FOLDER variable!įOLDER is the absolute path to your image folder Now we can move on to batch resizing Batch Resize Images with Linux with ImagemagickĬreate the following script mkdir -p ~/scripts Note that this overwrites your original image! convert image.jpg -resize 600x400\> image.jpgĬheck the image was resized identify -format "%wx%h" image.jpg This will automatically preserve the aspect ratio of the image too. You can resize the image if it is larger than the specified dimensions. Lets say youre writing a series of Blender tutorials and youre using PrintScreen to. You will see the resolution, width is first then height. ImageMagick Tutorial: How To Batch Resize Images on the Command Line. We can use the identify command to get the width ( %w) and height ( %h) identify -format "%wx%h" image.jpg Batch Resize Images using Linux Command Line and Imagemagickįirst we need to install Imagemagick from the repository on Debian or Ubuntu sudo apt-get update If you want to install Imagemagick on CentOS see this guide. This guide shows you how to batch resize jpg and png files using Imagemagick on Ubuntu or Debian. If you never had any image size restrictions or automatic resizing on your site, it can be extremely convenient to batch resize those images in Linux. The most common culprit is image size or lack of compression. ![]() ![]() Large images means a large page size which means slow WordPress page load times for users.
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