[Eform] Max file size validation

Hello,
How can i validate "input type=file" from Eform that the error about to big file size will be displayed with other error messages in [+validationmessage+] area?
I read about validation rules and "#RANGE" but i dont know how to use it. (http://wiki.modxcms.com/index.php/EForm)
Thanks for any help

I don’t think that you can check the file size with php before it’s uploaded - or with Eform at all.

You can try place this in the form:

- but it are still checked after upload, and are easily bypassed...