Hi,
    I am adding two signatures from jpg into a pdf document (well no, I changed one of the jpgs to xcf, but this problem occurs with the 2nd sig added, no matter the format).
1. Open pdf as layers
2. open the signature file as layers
3. put the signature file onto the document
4. Select Darken only and position the signature
5. Select "merge down" for the signature layer
6. It saves fine into the PDF

BUT, when I do this for the 2nd signature, as soon as I do "merge down", the signature vanishes. I have a feeling this has something to do with layers getting in each other's way or something, but I have no idea how to fix.

I also put in two text fields near by with the date.  I did not need to use merge down or darken for those fields and they also worked with the single signature as well as the vanished signature. 

What am I doing wrong?

-Bob

I have a map image that has a very winding walking trail.  I wanted to find the distance of the trail. I was imagining using Gimp to capture the graphic of the winding trail, converting it into a line, and then stretching it out straight so I can see the distance of the trail.

What would be the steps to do that in Gimp?

Thanks,

I just updated from GIMP 2.8 to 2.10.22.  In this version of GIMP, when it reaches the edge, it adds a hyphen (-) and then goes down to the next line.  While I am sure that is useful for some, it is ruining things for me.  I cannot find any options for text and searches for how to stop hyphenation in GIMP has not found anything?  Is there any way to turn this off?  It seems really weird for it to have been added without the ability to stop it.

Hello.

I have this black and white 225x225 pixels image that I want to print in a Tshirt, for that I need to add a Halftone effect, so I add a Newsprint filter with the Anti-alias oversampling factor of 0 so the Circle pattern (Period 1, Angle 45º) looks sharp enough to be burned in a silk screen, the image looks great (pic_1), I do a Color to alpha operation to remove the white background and then export the image in a .png format, but when I open the image in an image viewer or in this case Inkscape, the image looks with an anti-alias effect (pic_2), wich is no good for my purpose.
How do I retain this sharp (no anti-alias) effect?

I am using Gimp 2.10.18 in Ubuntu-Studio 20.04

Attached Files

Thumbnail(s)
       

I have an old plug-in script I wrote for an earlier version of GIMP. I want to port it to GIMP 2.10, the current Mac version, and re-code it in C or C++, whichever is used for GIMP plug-ins, to avoid the on-screen flashing it causes when using a scripting language.

I am getting stuck at doing a "Hello world" script as suggested by How to write a GIMP plug-in by Dave Neary https://developer.gimp.org/writing-a-plu...index.html as I can't even get that far.

Specifically, when I try to run gimptool-2.0 in Terminal, I get a message that the command is not found. Additionally, gimptool also gets command not found.

I'm guessing I'm missing a path, but I can't find the appropriate path. If I search my hard drive for files with gimptool in the name, I find gimptool.c and gimptool.h as well as a bunch of gimptool[something].c and gimptool[something].h, but no gimptool or gimptool-2.0 binary file.

Is there a guide somewhere to getting started from a GIMP 2.10 installation to the point where I have an executable gimptool-2.0 binary file, specifically on Mac OS?

I have Xcode installed and expect to relearn C or C++ enough to write the plug-in.

Hello gimp users, I'm beginner with gimp. I have a PSD file and want to use gimp to put any design in the future on this T-shirt mockup.

By searching, I found that people will face some obstacles because of Photoshop smart objects. And as a beginner, tried many tutorials, but applying them on this mockup didn't work for me!

Mockup link download: (Download Size 15.2 MB .. After extract will be 53 MB):
https://www.dropbox.com/s/8njktwtjscp5w1...p.rar?dl=0
Example of a simple weird design    to put on that T-shirt Mockup
https://www.dropbox.com/s/elqrbx5vlqv1js...0.png?dl=0


Thank you for reading and all of your efforts.

Note: This Mockup is free for personal and commercial use, I just didn't want to link to the source as I'm afraid of linking to external source will break rules or something.

I'm at my wit's end!

Okay, so I have this image that I have rotated to my satisfaction.
Using the crop tool I have selected to area to retain and thereafter I click on the selected area to effect the crop.
The excluded pixels disappear but the canvas does not get cropped.

I'm sure I've done something wrong somewhere as this has never happened before.

In the crop dialog box nothing is checked except for the highlight at 50%.

Mode is Normal.
Many thanks

I have a logo that i need to save/convert to CYMK and PMS color formats in order for it to be properly printed. Can anyone tell me the best way to do this? 
Thank you!

Really what I'm trying to do is rotate the canvas without rotating the image.  I do this in my other software, but trying to do it in gimp.

I want to take a horizontal image, rotate the canvas to vertical and then enlarge the original horizontal image to fit the vertical canvas.

I've tried for an hour to figure out how....not so far.

It's easy enough to resize the canvas to vertical format, but then I can't make the image by itself bigger to fit the canvas.

Any help is appreciated.

This may be more of a question for a 3D CAD or some other sort of 3D forum, but I’m coming at it from the photo side of things. Likely someone has had a similar question.


I’d  like to use two flat 2d images, both with a common background in a composite image.  Both pictures are taken pointing the same direction.  One is just taken a good distance behind where the other one is from.


I can adjust the scale of the rear picture so the common distant objects are the same height. However, objects in foreground, close to the position of the camera are not the right height when compared to objects at that distance in the photo taken second picture a distance behind the first.


I saw that GIMP has a 3D perspective transform too, but it looks like it would not really be of any use for what I’m thinking.


I suppose maybe using a different lens for the two pictures is an option.


It also seems like this may be possible with software. I only use GIMP a little. I’ve used some 3D applications even less, but have used Sketchup a little most recently.  


It allows you to create a rectangle then pull or push the face of it up or down to create a cubic shape. You can then adjust the size of one of the faces to create some sort of trapezoidal cubic shape, create a beveled edge or what not. 


I was thinking if you could put an image on the original rectangle and leave it on it as you pulled it up and adjusted the size, maybe you could do this. The image is a raster image and the 3D app uses vector images, but in the intitual cubic shape after the rectangle has just been pulled up each pixel in the top rectangle would line up with the same pixel in the bottom rectangle and the could be connected with a straight line.  So any adjustments later, those lines would still be there. At this point the location of each pixel on the initial rectangle surface is known and now connected by lines there is the makings to create 3D geometry and relationships to create a 3D vector image.


So the ultimate image adjusted for perspective would be composed of pixels from a series of slices and where they fit on the surface of each slice. So if you adjusted the top layer so it is smaller, the middle would be the top slice, each outer slice would be the pixels on the lines that are outside the the boundaries of the top slice.


This is sort of how 3D printing is done, although using vector graphics all along.  I also remember where they took some donated human cadavers which I guess they may have added some dies to indicated blood vessels and other structures and frozen and sliced them into very thin slices and took a picture or created a digital image of each slice.  Then reassembled all the digital slices to create a 3D image of the bodies.


I probably don’t quite have it right how it all works, but it looks like something along these lines is already being done for other things.  Anyone know if there is an app or an easy way to do this?