If you are instead asking about how to restrict the size of a file uploaded through CKFinder, see the Resource Types section of the Developer's Guide for some samples.
It would be much easier to help you if you told us what your environment is and what you are trying to achieve exactly.
The "upload_max_filesize" is
The "upload_max_filesize" is a PHP server directive: http://www.php.net/manual/en/ini.core.php#ini.upload-max-filesize
If you are instead asking about how to restrict the size of a file uploaded through CKFinder, see the Resource Types section of the Developer's Guide for some samples.
It would be much easier to help you if you told us what your environment is and what you are trying to achieve exactly.
Documentation Manager, CKSource
See CKEditor 5 docs, CKEditor 4 docs, CKEditor 3 docs, CKFinder 3 docs, CKFinder 2 docs for help.
Visit the new CKEditor SDK for samples showcasing editor features to try out and download!
CKEditor max upload file size
How can I restrict the extension and the size of a file uploaded through CKEditor?
I use CKEditor 4. And don't want use CKFinder.
Application works on ASP.NET MVC framework (if it can somehow help)