09-26-2021, 08:48 AM
(This post was last modified: 09-26-2021, 08:49 AM by rich2005.
Edit Reason: typo
)
The usual warning, Gimp works in pixels, not in millimetres. Any millimetre value has to be converted to pixels and that depends on the Image resolution.
First thing to do is open Image -> Print Size and change the drop down pixels-per-inch to pixels-per-mm Make a note of that value. Get your calculator out and use it to multiply the millimetre values to give pixel values.
Then it is just entering the pixel value into Image -> Guides -> Add Guide for each guide.
Two minute video of that. https://youtu.be/BLq2bcSqT-I
This is shown in Gimp 2.8, if you have updated to Gimp 2.10 It is exactly the same.
First thing to do is open Image -> Print Size and change the drop down pixels-per-inch to pixels-per-mm Make a note of that value. Get your calculator out and use it to multiply the millimetre values to give pixel values.
Then it is just entering the pixel value into Image -> Guides -> Add Guide for each guide.
Two minute video of that. https://youtu.be/BLq2bcSqT-I
This is shown in Gimp 2.8, if you have updated to Gimp 2.10 It is exactly the same.