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Inverting Grayscale measu...
Forum: General questions
Last Post: Chemtech
3 hours ago
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AIMAGoR - Artificial IMAg...
Forum: Other graphics software
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Yesterday, 08:08 AM
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chuckhenrich social media...
Forum: Extending the GIMP
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Yesterday, 07:42 AM
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Resize multiple PDF pages...
Forum: General questions
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09-12-2026, 10:30 AM
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Gimp Background colour.
Forum: Installation and usage
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is there a crop tool sett...
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Resize multiple PDF pages...
Forum: General questions
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09-11-2026, 05:46 PM
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Building a printable flye...
Forum: General questions
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3.0 Batch Image Watermark...
Forum: Extending the GIMP
Last Post: rich2005
09-11-2026, 09:31 AM
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How to turn off Lighting ...
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| Inverting Grayscale measurement scale |
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Posted by: Chemtech - 11 hours ago - Forum: General questions
- Replies (2)
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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 |
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Posted by: denzjos - Yesterday, 07:42 AM - Forum: Extending the GIMP
- No Replies
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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. |
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Posted by: pascal079 - 09-12-2026, 07:28 AM - Forum: General questions
- Replies (1)
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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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| Resize multiple PDF pages from A4 to A3. |
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Posted by: pascal079 - 09-11-2026, 05:46 PM - Forum: General questions
- No Replies
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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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3.0 Batch Image Watermark Plugin [No resizing] |
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Posted by: bluedrop2007 - 09-10-2026, 07:59 PM - Forum: Extending the GIMP
- Replies (1)
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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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