Exposing a document for external usage

sometimes you need to expose an image that you have to be available on site pages or autoresponders.  Salesforce makes it easy to upload and expose documents.

Go to Documents in Salesforce

Go to Documents in Salesforce

Click New

Give it a name and check the Externally Available Checkbox

Then Right Click the preview image

And then you have the URL on the clipboard.

It looks somthing like this

https://c.na9.content.force.com/servlet/servlet.ImageServer?id=015E0000005Iuik&oid=00DE0000000dj9q&lastMod=1419268988000

is you're using the image in an autoresponder email, just remove the S from the https:// to allow older versions of outlook to display the image properly.