Imagemagick
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jgngo

jgngo @jgngo

About: Interested in making things work.

Location:
Manila
Joined:
Mar 17, 2020

Imagemagick

Publish Date: Dec 18 '24
1 1

Installation

https://imagemagick.org/script/download.php#windows

1. Converting all files to jpg

In a folder, convert all png, webp, gif files to jpg.

magick mogrify -format jpg -background white -flatten *.png
magick mogrify -format jpg *.webp
magick mogrify -format jpg *.gif
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2. File renaming

In Powershell, this will rename all jpeg to jpg.

dir *.jpeg | rename-item -newname { [io.path]::ChangeExtension($_.name, "jpg") }
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3. Resizing all jpg files

This command "Shrinks an image with dimension(s) larger than the corresponding width and/or height argument(s)."

magick mogrify -resize '720x720>' *.jpg
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4. Optimize image size

This command will optimize all jpg images to Google Pagespeed recommendations.

magick mogrify -sampling-factor 4:2:0 -strip -quality 85 -interlace JPEG -colorspace sRGB *.jpg
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Others

These are other commands that may be useful.

magick mogrify -resize 960x528 *.jpg
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This command resizes all of the .jpg files in your directory to a size of 960 pixels by 528 pixels. Perhaps the height isn’t as important as the width. You can simply enter:

magick mogrify -resize 960 *.jpg
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This will scale all of your images to a width of 960 pixels, the height will be scaled accordingly, preserving the aspect ratio.

Comments 1 total

  • edson victor dela cruz
    edson victor dela cruzMar 25, 2025

    Sir for no. 3. Resizing all jpg files.
    Please revise this code sir like this po. "magick mogrify -resize "720x720>" *.jpg"

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