PNG and GIFF
GIF is such a format that supports animation and transparency. See the related question for more details on the GIF format and some other formats that support one of these features.
To make images transparent in IrfanView, first, open your image and ensure it's in a format that supports transparency, like PNG. Then, go to "Image" in the menu, select "Palette" and choose "Change color to transparent." Click on the color in your image that you want to make transparent, and adjust the "Transparency" level as needed. Finally, save the image in a format that supports transparency to retain the effect.
i think it not supports any image format...
PNG is an image file format, such as JPEG or BMP. One of the differences between PNG and JPEG, is that PNG supports transparency.
A recent file format that supports continuous tones and transparency is the PNG (Portable Network Graphics) format. Developed in the mid-1990s, PNG uses lossless compression and allows for variable transparency levels through an alpha channel, making it ideal for web graphics and images requiring high quality without artifacts. It has largely replaced GIF for many applications due to its broader color support and ability to handle transparency effectively.
Raw image format is a minimally processed image file that contains all the data captured by the camera sensor, while PNG is a compressed image format that supports transparency and lossless compression. Raw files are larger in size and require processing, while PNG files are smaller and ready for use on the web.
Normally delete the background in the image then when saving, save with the transparent option checked. This will give you a transparent background. PNG is different than GIF format because with PNG you get 256 levels of transparency which allows you to smoothly blend your image to the page background on a webpage. GIF has only one level of transparency so you get a pixelated edge to your image.
The main difference between TIF and PNG file formats is that TIF is a lossless format, meaning it retains all image data, while PNG is a lossless format that compresses image data. TIF is better for preserving image quality as it does not compress the image data, making it ideal for high-quality prints or editing. PNG is better for web use or images with transparency, as it supports transparency and smaller file sizes.
A flattened image has only one layer. After the image is flattened, it has the same appearance it had before. The difference is that all of the image contents are in a single layer without transparency. If there are any areas which are transparent through all of the layers of the original image, the background color is visible. By flattening an image we introduce significant changes to the structure of the image. It is normally only necessary when you would like to save an image in a format which does not support levels or transparency (an alpha channel).
When you download a GIF, it typically saves in an image format because GIF (Graphics Interchange Format) is a type of image file that supports both static and animated images. Most devices and applications recognize the GIF format and save it as an image file. This allows you to view the GIF in image viewers or share it like any other image format. If you want to use it as an animated graphic, ensure that the application you use supports GIF animations.
With your image editing software (try PaintDotNet) you can select the part you want to cut out and delete that. You must save the image in a format that supports transparency (such as .png)