This vQmod OpenCart module is used to sanitize uploaded image filenames so they are web- and Facebook-safe. When you upload an image in the OpenCart File Manager, this module will rename the file to be web-safe as follows:
1. trim the filename if it is more than 31 characters including the extension;
2. change any character other than a-z, A-Z, 0-9 into hyphen (-);
3. strip any leading and trailing hyphen of the filename.