Resolving KindEditor Image Upload Size Limits by Adjusting php.ini and upload_json.php
This article explains how to fix KindEditor image upload errors caused by PHP's upload size restrictions by modifying the php.ini upload_max_filesize setting and increasing the $max_size value in KindEditor's upload_json.php file.
In this tutorial the author describes encountering an error when uploading large images with the KindEditor WYSIWYG editor, where PHP reports that the uploaded file exceeds the size allowed by php.ini.
The fix begins by locating the active php.ini file (e.g., via a simple <?php echo phpinfo(); ?> script) and increasing the upload_max_filesize directive to a larger value, then restarting the server.
After adjusting php.ini the error still appears, which turns out to be caused by KindEditor’s own upload limit defined in upload_json.php. By editing that file and changing the $max_size = 1000000; setting to a higher number, the restriction is removed.
Following these two configuration changes, image uploads larger than the original limit succeed without further server restarts.
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