How to get an image under 2 MB
Choose your image, check that the output type is accepted by the receiving site, and select Resize & compress. Each successful result is measured against the 2 MB limit before download. For multiple images the limit applies to each file, not the ZIP as a whole.
2 MB versus 2 MiB
This page uses 2,000,000 bytes. Some sites use 2 MiB, or 2,097,152 bytes. A file at or below this tool's 2 MB limit is also below 2 MiB; check the destination for any separate dimensions or format rules.
If the image does not fit
Detailed photographs and lossless PNG files may not fit at the existing dimensions. If the receiving site permits it, choose JPG or WebP or allow smaller dimensions. Explicit pixel dimensions are not silently reduced.