Would like to test for the filesize of a file to be potentially uploaded. If it is above a certain number of bytes I would like to compress the file before uploading and then decompress it after the upload has finished.

 

Question: What is the preferred event to try to compress the file  on before it is uploaded. Is there a server side event I can do this on? Would I need to do this client side with some JavaScript. Any suggestions you might have would be greatly appreciated.  

 

Jason