settings - Unable to upload Umbraco image larger than 4Mb -

i using umbraco 7.2.1 , in media section uploading images. think umbraco has limit image size of 4mb. when try upload images of greater size, come , disappear.

umbraco should have message or notify size limit crossed thats totally different issue.

my question how limit can increased?

you have edit web.config, maxrequestlength , maxallowedcontentlength (the example 100mb uploads):

<httpruntime requestvalidationmode="2.0" enableversionheader="false" targetframework="4.5" maxrequestlength="104857600" /> 

and also

<system.webserver>  <security>   <requestfiltering>    <requestlimits maxallowedcontentlength="104857600" />