A bit of a struggle for me. Nothing I can see using BIMP and nothing using the usual GUI batch utilities such as XNViewMP.
So down to ImageMagick, which is a command line utility see: http://www.imagemagick.org and the Windows Installer download is way down bottom of this page https://www.imagemagick.org/script/download.php
This is the code to run in a terminal, copy and paste into notepad
and if you are not used to using Windows Command terminal some hints here:
Direct link https://youtu.be/qkdup-cReiA duration 2 minutes
Not much I can do about the naming convention, maybe some Windows expert can advise or use one of the several Windows renaming utilities.
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EDIT: I did not think that the magick command could overwrite existing files, but it does. You could try the slightly amended command
That will keep the same file names.
Dangerous. Same as BIMP, work with copies or you might lose the originals.
So down to ImageMagick, which is a command line utility see: http://www.imagemagick.org and the Windows Installer download is way down bottom of this page https://www.imagemagick.org/script/download.php
This is the code to run in a terminal, copy and paste into notepad
Code:
for /r %x in (*.jpg) do magick "%x" -gravity Center -background White -extent "%[fx:max(w,h)]x%[fx:max(w,h)]" "%x_square.jpg"
and if you are not used to using Windows Command terminal some hints here:
Direct link https://youtu.be/qkdup-cReiA duration 2 minutes
Not much I can do about the naming convention, maybe some Windows expert can advise or use one of the several Windows renaming utilities.
-----
EDIT: I did not think that the magick command could overwrite existing files, but it does. You could try the slightly amended command
Code:
for /r %x in (*.jpg) do magick "%x" -gravity Center -background White -extent "%[fx:max(w,h)]x%[fx:max(w,h)]" "%x"
That will keep the same file names.
Dangerous. Same as BIMP, work with copies or you might lose the originals.