$ convert sample.jpg -border 10x20 output.jpg
This adds a border of 2 pixels wide and 4 pixels high.
Next we can add a more decorative border
$ mogrify -frame 20x20 <filename>
Your donation will support ongoing availability and give you access to the PDF version of this book. Desktop Survival Guides include Data Science, GNU/Linux, and MLHub. Books available on Amazon include Data Mining with Rattle and Essentials of Data Science. Popular open source software includes rattle, wajig, and mlhub. Hosted by Togaware, a pioneer of free and open source software since 1984. Copyright © 1995-2022 Graham.Williams@togaware.com Creative Commons Attribution-ShareAlike 4.0