Board Thread:Support Requests - Designing Your Wiki/@comment-39949541-20200311011637/@comment-9605025-20200311013316

If your file size is too large, then you will need to compress the image. Some programs let you select the compression level while saving; others do not. If your program does not (or you don't know how to access that option), you can use an online compression tool instead. For example, since your image is a PNG, you could use compresspng.com.