How to compress a file in illustrator? Consider i have a file of 20 MB i need to reduce to maximum possible size preferably 1 MB

Thank you for the invitation

The size of your file can increase greatly when you create an Adobe Illustrator document. You can optimize your document and create smaller files by using one or a combination of techniques, depending on your desired result. According to Adobe, flattening objects removes transparency, although it reduces the file's size. You can also save your file as an EPS file format if you want to preserve several elements in your file while you shrink it.

For me, it's worked if I save it to pdf small size file. Hope this will help.