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Image Analyzer - Amongst other things, allows for lossy compression of PNG files. (Often, however, merely posterizing the image at a level that does not produce color banding results in smaller files of the same or higher quality.) JPG Cleaner - Removes Exif data from JPEGs, making the files smaller.
To use an image (or video, or audio file) on Wikipedia, it must first be uploaded. However, there are some important restrictions on what images Wikipedia can accept. This tutorial introduces you to the relevant rules and guidelines. To upload images, you will need to register an account. It's quick and free, and has many benefits
In graphics software, layers are the different levels at which one can place an object or image file. In the program, layers can be stacked, merged, or defined when creating a digital image. Layers can be partially obscured allowing portions of images within a layer to be hidden or shown in a translucent manner within another image.
To upload a new image, first activate VisualEditor by clicking "edit" at the top of an article. Once the VE toolbar has appeared, click the Insert menu and choose the "Images and media" option. That opens a dialog box which allows you to upload and use images.
Since the MediaWiki software dynamically scales inline images, there is no technical reason to reduce file size via scaling or quality reduction when uploading images, although non-free images may require scaling due to copyright concerns (see the non-free image resolution guidelines for further information). Also, compressing PNGs may be ...
In any of the above cases, there should be a note saying what specific software is required to edit the image. Data formats and code that are compatible with free software should be preferred. There are 4 basic choices for image file formats: SVG for simple diagrams (especially those that need to be scaled). JPEG for photographic images.
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