online editors for various file types, doc, dwg, image

I have a media archive with various file types on my server. If a user wants to update that file, he has to download the file to his local machine, edit it with his desktop software (Word, AutoCAD, etc), then reupload the file. It's kind of a pain for my users. Has anybody run into this problem and solved it in the past. I'm aware of using samba, but that's not exactly what i want. Are there any tools out there 开发者_高级运维that can help me edit files that are on a server? I'm thinking kind of like a Google Docs kind of thing, your file actually sits somewhere in Googleland, but you can access and edit it in your browser. The files I would want to edit are:

• .doc
• .dwg (AutoCAD)
• .jpg (is there a good image editing client out there?)

My language of choice is PHP, but I can do anything really if I have to.

The bottom line is I have a doc, for example, on my server in some directory. I want the user to edit the content of that doc and have it be replaced in place with as minimal hassle on the user as possible.

• https://www.autocadws.com/ (CAD)
• https://chrome.google.com/webstore/detail/dcjeclnkejmbepoibfnamioojinoopln (CAD)
• https://docs.google.com (documents)
• http://www.aviary.com/ (Images)

Online image editors are the easiest and most plentiful to find. You can roll your own half-baked version or use one of the API's like Aviary.

Google documents is very nice for the business side of things (Excel, Email, Word documents with multiple people working at a time).