The maximum size of any upload is approximately 25-30 MB. If your file does not upload, please check that the file you're uploading is below that limit.Some tips if you'd like to reduce your file size:If you have an image file, please try tinypng.com to see if your image file size can be reduced.If you have a PDF file, please try smallpdf.com to compress your PDF file before uploading it.If you have an MP3 file, please try mp3smaller.com to compress your MP3 file before uploading it.