For images that you have on your computer, and want to embed into a post Prepare your image, i.e. get a JPG ready, on your computer, with the long edge at most 1024 pixels long. The size limit ensures the post is viewable on the widest range of devices. Start a new post, or go to the reply box for the thread you want to post your photo to. Click the 'upload a file' button (bottom right in the reply box, middle bottom in the new thread box). You'll get a popup window, click browse, and then find the image on your local computer (i.e. find the directory you put the file into), and select it. Once selected, you'll get a thumbnail of your image underneath the post, along with the filename, and two options - thumbnail or full image. Click the full image button to put the full image into the post. If you prefer to just show a thumbnail, use that option. These images are uploaded to, and hosted on, the forum site. They are not part of the gallery, they are simply embedded directly into your post. For images hosted on the web, where you can see the image using a simple URL Start a new post or reply Click the 'Image' button in the toolbar above the post (it's the box with a landscape and little sun icon) Paste the URL into the dialog box. This method is most prone to displaying images at strange sizes, try and link to images which are between 800 and 1024 pixels on the long edge at most. These images remain on the original site, and each user's browser goes and grabs the image when they view the post, which can sometimes lead to inconsistencies. NB: This only works, when the URL shows just an image. It doesn't work where the URL goes to a website which surrounds the image with other stuff. So it works for some sites and not others. That's nothing to do with AP, that's just how it is. Usually, but not always, this means the URL should end with .jpg or .png or similar, if it doesn't, then this process isn't likely to work. For images hosted with other image hosted sites Each of these sites will have their own instructions for sharing images. This is outside the control of AP, but the forum software allows you to embed images using BBCode. Flickr allow you to use either a simple URL (i.e. use the above optjon), or BBCode. If you use the BBCode option on Flickr, ensure you pick a size on the long edge between 800 and 1024 pixels, again, to ensure your image is viewable by as many people as possible. Again, these are links to the image, which are actually grabbed by the browsers of people reading the site, which means if they move or change, the links can become out dated. It's not possible to describe how to achieve the processing with every single image hosting site, but many of them will fall into the second category above. However, a lot of people use Flickr, so here's a specific example (which is subject to change whenever Flickr change their process).. Specific Flickr Example Browse to the Flickr image you want to embed. Click on the 'share' icon (it's a right pointing arrow) - if the arrow is not there, the owner of the image has disabled sharing, there's nothing you can do. If the sharing icon is there, you'll get a dialog box with some options, Share / Embed / Email / BBCode. Choose BBCode. You'll now get a dropdown list where you can choose the size of the image, pick one where the longest edge is between 800 and 1024 (or smaller, if you prefer), and copy the code in the dialog box. Simply paste that code straight into your post, and the image will show up when you save the post.