You can find the Windows and macOS versions here. Best open source image-processing software for compression PNG, GIF, TIFF, JPEG, BMP and XPM formats are supported by this powerful free image-processing software. It supports both direct and direct-to-png conversions. It's well-documented, and has features such as fast compression and resizing. If you have a big image collection this one is perfect for you. If you just need to see what's going on, check out the documentation here. Top PC Free Image Manipulation Programs: r/graphics — Reddit Feb 03, 2022 — I know. I don't like the Windows version of GIMP, and while it's fine for what it is, it doesn't allow for advanced image manipulation. So, I use GIMP (Mac and Windows) instead. Can I edit my GIMP images? For some reason, it has been the case that I've had many GIMP images in my collection that simply didn't look right. Here's the reason why GIMP is not allowed for modifications: Can I change a background with GIMP? I don't know this, but GIMP works in many other languages than English, including Portuguese and Dutch. It's possible to copy and paste the background into the image, or just drag it into the image with Ctrl+C and GIMP will convert the image to the background color that you specify. If I want to see what my background is, what should I do? Here's a way to preview/edit: In GIMP: Edit > Adjustments > Image > Preview. In the image area that pops up, you'll see a preview of your image, and the name of the layer(s) you are adjusting that image. If the image isn't a GIMP project, and you don't know how to open an image in GIMP, GIMP has a built-in utility called GIMP Image Editor. I recently got a big, beautiful .png file from a 3rd party and didn't know what to do with it. You can use GIMP to open .png files, but it's not the best. So, here's the best way to open .png files with GIMP: In GIMP Go to File > Open And here are two ways to edit.