Is there a way to fix images with distorted round objects to perfect round objects? I think of a plugin / script where one can place a few points on the distorted circle or use a path / selection. Playing with the different gimp tools is time consuming to get a good result. An example to correct :
   

I hope someone here will help with a problem that repeatedly happens and basically (overnight, it seems!) has made GIMP unusable:

I open a photo.  Highlight some area.  Hit either Edit > Cut, Edit > Copy, or Cntl-x or Cntl-c, and poof, GIMP crashes.  Every time.

It doesn't seem to matter the size of the document or area I'm trying to copy.

I saw some thread on another forum saying if on has CopyQ installed that may cause issues, but I don't believe I do.  (I'm running Lubuntu 20.04LTS, a vanilla install, nothing modified.  It's LXQt, if that matters.  And my system is a newish Dell with 40GB of RAM, so I doubt it's a memory problem.)

I desperately need to fix this or find a work around.  Here's the output when I run GIMP from the command line:

me@home:~$ gimp
using gegl copy

(gimp:248888): Gdk-CRITICAL **: 22:06:25.414: IA__gdk_window_get_events: assertion 'GDK_IS_WINDOW (window)' failed

(gimp:248888): Gdk-CRITICAL **: 22:06:25.414: IA__gdk_window_set_events: assertion 'GDK_IS_WINDOW (window)' failed
The program 'gimp' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadWindow (invalid Window parameter)'.
(Details: serial 95997 error_code 3 request_code 18 minor_code 0)
(Note to programmers: normally, X errors are reported asynchronously;
that is, you will receive the error a while after causing it.
To debug your program, run it with the --sync command line
option to change this behavior. You can then get a meaningful
backtrace from your debugger if you break on the gdk_x_error() function.)

(script-fu:248910): LibGimpBase-WARNING **: 22:06:25.457: script-fu: gimp_wire_read(): error

Thank you in advance for any help.

I followed this tutorial but when I get to the point of applying or hitting okay the progress bar comes up for a couple of seconds but nothing happens. Any insight as to how to make this work?

Remove Anything From A Photograph in Gimp using GMIC

I rotated the screen capture 90 degrees because it would be too long vertically.

As you see below, even though I have changed the UI font size by editing the "gtkrc" file, the icons does not seem to scale. Those images seem to be from share\gimp\2.0\icons\Symbolic-High-Contrast\scalable\apps, and they are vector images (.svg), but they don't scale at all. Whether at I choose Preference->Interface->Icon Theme "Guess icon size from resolution" or "Custom icon size = Huge", the menu icon size does not change.

Is there any way to change the menu icon size? Or is this a bug and there is currently no way to change the menu icon size?

[I’ve been using GIMP for a couple of months.  After creating a new document 11x17 inches, 300dpi, I export a pdf and take it to the printer who says the document is actually over 50” wide.  I’ve spent a lot of time trying to get this right, including watching several instructional videos. 

Maybe when I bring artwork that was shot on my iPhone into GIMP the canvas size changes?  I don’t understand what’s happening here.

Can you help?

Thank you.
I’m using a MacBook Pro, Catalina 10.15.7

Hi,
When creating a preset in Curves using the option:
Save the current settings as named preset, where is this preset saved? in which file?

I searched the drive C:/  but returned nothing in the search.

Thank you

Hi everyone

I have a set of Clip Studio Paint brushes in the .sut format.
I can't open them with GIMP.

Do you know how to convert those files into .gbr or any other readable format?

Thank you!

jpeg is 349 X 459. How do I print it so it fills up 8-1/2" X 11 sheet?

I did this once before, but the image just prints a lot smaller.

Using HP Office-Jet Pro 6970. Can't remember what printer I used before.

I have the following in a file, but how do i turn it. (see screenshot) using "APR" I ant to tun it around so it will for and looks like 3rd picture.

I need to change a few of the single color ones, and then change the few in the one with all of them.

I want to change APR, MEI, JUN, JUl and AUG.

I did add one to how I need it.

Just need help with only one, the others I will then trying to do them.

I have spent the last 6 HOURS trying to do one simple thing, transform a rectangular image into a right triangle without distorting the pixel placement vertically. I have used EVERY transform tool, looked through every filter, and for the life of me I cannot figure out how to do this. So PLEASE if anyone can tell me if this is possible, and if so how I can do it, it would be greatly appreciated.