PowerGDocs is an open source application which is actually a desktop client to manage Google Docs. Now, when we say that it is a desktop client for Google Docs, it does not mean that it syncs files but it does allow you to upload and download files from your Google Docs account.
And offers you with feature like compress and encrypt Google Docs. So, it save a lot of your time by compressing the file before uploading it. Using PowerGDocs is no big deal.
Once you are done with its download, install it on your computer and launch it. It would ask for your Google Credentials now. Now it would display you with the files and you can download them by clicking on the download button.
And in order to upload any of the files, select the files that you want to upload and save them to your Google Documents. And in the process you can compress or encrypt those Google Docs by choosing the options in Options tab. PowerGDocs is a useful program to have on your computer if you are an avid user of Google Docs.