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Inverting Grayscale measu...
Forum: General questions
Last Post: Chemtech
3 hours ago
» Replies: 2
» Views: 79
AIMAGoR - Artificial IMAg...
Forum: Other graphics software
Last Post: rich2005
Yesterday, 08:08 AM
» Replies: 24
» Views: 18,488
chuckhenrich social media...
Forum: Extending the GIMP
Last Post: denzjos
Yesterday, 07:42 AM
» Replies: 0
» Views: 80
Resize multiple PDF pages...
Forum: General questions
Last Post: rich2005
09-12-2026, 10:30 AM
» Replies: 1
» Views: 154
Gimp Background colour.
Forum: Installation and usage
Last Post: MrsP-from-C
09-12-2026, 08:35 AM
» Replies: 3
» Views: 250
is there a crop tool sett...
Forum: General questions
Last Post: John A.
09-11-2026, 07:45 PM
» Replies: 2
» Views: 193
Resize multiple PDF pages...
Forum: General questions
Last Post: pascal079
09-11-2026, 05:46 PM
» Replies: 0
» Views: 69
Building a printable flye...
Forum: General questions
Last Post: rich2005
09-11-2026, 04:00 PM
» Replies: 3
» Views: 172
3.0 Batch Image Watermark...
Forum: Extending the GIMP
Last Post: rich2005
09-11-2026, 09:31 AM
» Replies: 1
» Views: 168
How to turn off Lighting ...
Forum: General questions
Last Post: sallyanne
09-11-2026, 08:06 AM
» Replies: 5
» Views: 269

 
  Inverting Grayscale measurement scale
Posted by: Chemtech - 11 hours ago - Forum: General questions - Replies (2)

I'm working on making digital negative exposure curves for alternate photo processes.  Tutorials showing new curve creation using a step wedge show the step wedge scanned as 8-bit grayscale and loaded into PS, then the steps are measured using the Info window with white measuring 0% and black 100%.  I'm obviously trying to use GIMP and the grayscale measure tool measures the white step as 100% and the black as 0%.  Is there a way to invert the GIMP measurement scale so the white is measured as 0% and the black as 100%?  Or is Color>Invert the step wedge, and measure that, the only solution?
Thanks.
GT

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  chuckhenrich social media export plugin
Posted by: denzjos - Yesterday, 07:42 AM - Forum: Extending the GIMP - No Replies

A social media export plugin for GIMP: any platforms, one go
KEY POINTS
- Export an image for every platform’s dimensions that you select, in one operation
- 33 built-in presets across 9 categories: Bluesky, Facebook, Instagram, LinkedIn, Threads, TikTok, YouTube,
plus Generic aspect ratios and Scale presets for width- or height-driven resizing
- Create your own Favourites for any size, file format, quality, sharpening, border — or use the built-in
presets and set options on the fly
- Output sharpening built in
- Optional border (colour, pixels or percentage, inside or outside the image)
- Optional copyright notice and EXIF metadata deletion
- “Keep export image open" — review exported images as GIMP tabs before saving to disk
- Non-destructive — works on duplicates of your source image; the original is never touched
- Works on duplicates of your source image; the original is never touched
- Requires GIMP 3.2 or later, Linux, macOS, and Windows
- Free and open source

https://www.chuckhenrich.com/social-medi...ugin-gimp/

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  Resize multiple PDF pages from A4 to A3.
Posted by: pascal079 - 09-12-2026, 07:28 AM - Forum: General questions - Replies (1)

Hello,

 I am French and am posting this with the help of a translator. I use GIMP 3.2 on Linux Mint. 

I have a multi-page PDF in A4 landscape format, and I would like to resize all the pages to A3, also in landscape format. 

Is this possible, and if so, how? 

Thanks.

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  Gimp Background colour.
Posted by: TeckyWalla - 09-11-2026, 06:45 PM - Forum: Installation and usage - Replies (3)

I am suprised at the apparent number of people that select the black working screen for Gimp, going by the youtube videos out there.
Personally if I am goint to draft a drawing by hand, My first thing is to grab a WHITE sheet of paper to sketch it out on using a dark pencil etc..
Which I also tend to use with Gimp.
I wonder if they represent the majority ?? Confused

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  Resize multiple PDF pages from A4 to A3.
Posted by: pascal079 - 09-11-2026, 05:46 PM - Forum: General questions - No Replies

Hello, 
I am French and am posting this with the help of a translator. I use GIMP 3.2 on Linux Mint. I have a multi-page PDF in A4 landscape format, and I would like to resize all the pages to A3, also in landscape format. Is this possible, and if so, how? 
Thanks.


-----------------------------------
Bonjour, 
je suis français et je poste avec l'aide d'un traducteur. Je me sers de Gimp 3.2 sous linux mint. J'ai un pdf de plusieurs pages au format a4 en paysage et j'aimerais redimentionner toutes les pages en A3 toujours au format paysage. Est-ce possible et si oui, comment..  
Merci

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  is there a crop tool setting I can change in 3.2.4?
Posted by: John A. - 09-10-2026, 11:32 PM - Forum: General questions - Replies (2)

Hi,

I've just changed from 2.10 to 3.2.4 and I'm having a few hiccups. The one for today is the crop selection tool. In 2.10, I couldn't select anything beyond the canvas, which suited me just fine and made it seem faster to crop thousands of screenshots. I often have to zoom in to 800% for precision. Now with 3.2, the crop tool can extend beyond the canvas so when I zoom to 800% at the edge, the crop selection handles aren't visible without jumping through hoops. 

Is there a tool setting I can change to restore the behavior preference?

The screenshot is just intended to show what I mean by "the crop selection tool extends beyond the canvas" in case that needed to be shown.

Thanks much,
John A.



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Tongue 3.0 Batch Image Watermark Plugin [No resizing]
Posted by: bluedrop2007 - 09-10-2026, 07:59 PM - Forum: Extending the GIMP - Replies (1)

After being asked to put my name all over some pictures, I definitely knew I *was gonna use a GIMP automation*, therefore I spent all afternoon searching for a batch watermark plugin working for my version of GIMP, long story short, I found this plugin in another forum and I ran with it. To install it just make sure you know where your current GIMP Version Config is stored in (by that I mean I.e C:\Users\foobar\AppData\Roaming\GIMP\3.2,where you can find a folder named plug-ins or a file named pluginrc), now you should have a structure like this:
...\GIMP\3.2
> plug-ins
   >Watermark3_from_Image_OWN
      >Watermark3_from_Image_OWN.py
pluginrc (Basically you delete this file to refresh the plugin list)
And after restarting GIMP you get a new option under the "Edit" menu.
  
PRO TIP: You can drag and drop the watermark file from your file manager(in windows AFAIK) to the watermark file input.
  
The main changes are that the original version lacked center alignment, and it wasn't adapted for batch watermarks. This version lacks resizing tho! So make sure your watermark image is the right size, or make your own patch, this has a lot of potential, plus it "just works" on GIMP 3.0.
It supports a lot of image containers however I only tested PNG,JPEG and JPG and honestly it doesn't feel slow but It could be faster *sigh*.
 
IMPORTANT NOTICE:After force stopping the plugin and closing GIMP, a bug tracker notice might pop up
P.S: Thanks for all the people active in these GIMP forums, you all genuinely keeping it alive and it's honestly interesting to read most threads. Specially oFnuts and all the people who submit bug reports or propose features or ask questions (like how to have python plugins located in submenus and or different menus)

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  Building a printable flyer
Posted by: Angus4556 - 09-10-2026, 07:37 PM - Forum: General questions - Replies (3)

    I am creating a printable event flyer. I have created my paper at 11x17 but I can't get my first image to scale up and fill the space I need it to fill... What am I doing wrong?

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  How to turn off Lighting Effects? My god.
Posted by: Tom Atkinson - 09-10-2026, 04:03 AM - Forum: General questions - Replies (5)

My god.  What an intensely frustrating experience, trying to turn off the lighting effects.

I am a bit of a newbie and had been experimenting, and got to the point where I now just wanted to turn them off completely, so as to get back to where I was before I started the experimenting.

I was unable to turn them off!!  I tried every kind of reset (reset all filters, reset to initial values, reset to factory defaults, etc), but none worked.  Trying to manually change the lighting effects so that they had no effect also did not work!

In the end, I did CTRL-Z many many times to get back to an appearance I was prepared to live with.

How on earth do you turn them off?  Every attempt to manually neutralise them just made things worse!

Surely there is an easy way to turn them off!  What a frustrating experience.  HOW DO YOU TURN THEM OFF?

Gimp 3.2 on Windows 11 Home.

Thanks.

   

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  Not diamonds
Posted by: rich2005 - 09-06-2026, 09:56 AM - Forum: Gallery - Replies (2)

Rummaging through my junk box and resurrected one of those clip-on phone macro lens.  So this on top of the existing macro lens.  Just messing around Wink

   

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