To add a picture to a post, use the guidelines of the post Poppy & Nana pointed you to.
However, to add a picture within your signature its slightly different because there is no [img] button thats part of the profile page / signature set-up.
You still need to have the picture located on a web site first, as indicated in the linked post. Use the guidelines in the previous linked post to copy the url for the picture you want to put in your signature, then to add that picture to your signature:
1 go to your profile page
2 within the Signature window,
3 type in [img] (without the )
4 than add the url link to the picture and
5 immediately following thte url link type [/img] (again without the ).
Heres an example of what it may look like [img]" "http://web_site_location/picture_file_name.jpg" "[/img]
(again without the and the blank spaces)
For it to work properly, there cannot be any blank spaces between the [img] / [/img] commands and the url link.
Its been recommended that you keep the size of your picture for your sig to <20k.
A good pixel size is 250 x 100 (w x h)
Hope this helps
Mary & Tom (aka Hutch)
2015 Jayco Eagle Premier 361REQS
2014 GMC Sierra 3500HD 4x4 CC D/A
Sunlines: 2005 Solaris T-280SR; 1999 Solaris T-2670; 1998 Saturn T-24A