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| Gimp 3.2 create indexed color image ist different from 2.10 |
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Posted by: bluedxca93 - 10 hours ago - Forum: General questions
- Replies (1)
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Hi,
I did try to create a Screen Print draft
Then because of my sloppy File saving as jpg i wanted to reconvert IT to PNG and only as two colors to Print black one a transparent foil using a normal laser printer. However the indexing mechanism somehow works different on Gimp 2.10 and 3.2. The thresholding Filter also behaves very differently. New Version works better for high res while Gimp 2.10 IS more accurate on Low res. Ist there a reason or an explanation what exactly changed with 3.2?
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| Image in my file |
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Posted by: Terrenuit - Yesterday, 12:27 PM - Forum: General questions
- Replies (2)
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Hello,
I used Gimp to treat my image, after If want to stock in my file, Gimp has built my image.xcf
I want to know how I can change my image.png or image.jpg
so that I can send it to my friends.
Please tell me how convert image.xcf to image.jpg ?
Thank you very much !
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| NDE and sampling confusion. |
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Posted by: teapot - 09-14-2026, 02:29 AM - Forum: General questions
- No Replies
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Hi,
I'm confused by how tools that sample a layer interact with non destructive editing. An example:
On a new layer filled with white:
Draw three green circles making sure they don't overlap.
Filters -> Distorts -> Ripple un-merged.
Set the foreground colour to red.
With the bucket fill tool click on one of the green shapes.
The layer doesn't fully update right away, that's already got a bug report, so toggle the layer's visibility off and then on to trigger an update.
What happens is the ripple is applied 'twice':
The bucket fill samples the layer including the visible un-merged ripple.
It writes the result of the bucket fill to the layer, this includes the ripple.
The un-merged ripple is still being applied to the layer.
The result is the whole layer is rippled twice even though all we did was bucket fill one of the three shapes.
I tried this in 3.2.4 and 3.2.6.
Is this expected behaviour?
If not what should it do and has it been reported?
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| Inverting Grayscale measurement scale |
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Posted by: Chemtech - 09-13-2026, 01:36 PM - Forum: General questions
- Replies (4)
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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 - 09-13-2026, 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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