Uploading files in Postwire is constrained to the speed of your internet connection. The larger the file, the longer it will take to upload. If you are going to upload content to Postwire, we strongly suggest you have an upload speed of at least 5 Mbps. Follow these steps to test your upload speed:
1. Go to http://www.speedtest.net/
2. Wait for it to load and click on Begin Test
3. After the test completes, you'll see your upload speed in the upper right hand corner. In this case, it is 31.56 Mbps, which is relatively fast.
4. If your speed is in the low single digits, you can either wait for the uploads to complete or call your ISP to upgrade your line.