Thanks for your help. My other username is rodgithens. I've pasted the original post below. I don't understand why they can't add the plugin to enable editing of URLs. That's a pretty basic feature if you're using wordpress as a website.
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I am moving a set of PDF files from my old google site to my new wordpress.com site. I need the URLs to be exactly the same as they are on my google site because the URLs are publicized elsewhere. The problem is that wordpress uses a funky format with the date in the URL. I can find any way to edit the URLs for media uploads.
Here's what I need the URLs to look like:
http://www.mysite.com/subdirectory/filename.pdf
I need the ".pdf" in there, so just creating a page under the subdirectory won't work, as far as I can tell. I've seen that the "Pretty Link" plugin, but apparently that's not available on wordpress.com. Are there any other solutions??
I haven't paid for the premium usage yet, because if I can't edit these URLs, wordpress.com won't be an option for me.