Reading file via http. Please, help!

[alexfrumkin]

I need to find syntax to do the following. I need to read the file header (size, last modified, etc), and later, the whole file content off the web server to the client.<br>
I have a .pdf file residing on the web server directory. I need to transfer its header to the client, and then, upon examining the header (at the client) to copy the whole .pdf file from the server into client's local directory.<br>
<br>
I somewhat remember the sintax, goes something like : file.getfileheader[url:http/.......]. The file info gets passed via http string to the client (who is requesting the file). <br>
<br>
Am I on the right track? Please, help, I am a new programmer...<br>
<br>
Thank you for your time and effort!