First, you need to find a link to an image on the internet. When you find the image you want, copy a direct link to it by right-clicking and pressing "copy image address" (and NOT "copy link address" or "copy image"). Links to images end in extensions like .gif, .jpg and .png.
When you have copied the image address, paste it into your address bar. This should take you a page containing only the image. If the page has more elements in it, you do not have a direct link to an image. If you cannot find the direct link and you're computer savvy, try looking for it in the page source.
If you're trying to upload a picture that exists on your device onto PokeBase, then the first step is instead to upload the picture to the internet. Do this using a simple image-hosting service like Imgur, and then get the link to the image as described above.
Option 1 (easiest)
Click the icon above your answer box that looks like a photo portrait. It is the sixth icon from the left. After you click it, paste the link and click OK. The image will appear in your preview if the URL you inserted links to an image. Don’t erase the code it generates, as doing so will break the image.
Option 2 (cleanest)
Use the Markdown syntax to post images. Type an exclamation point !, followed by a set of cornered brackets [], and then a set of parentheses (), and paste your image URL in between the parentheses. Optionally, you may include an image description inside the cornered brackets. For example, posting this...
...does this:
This picture comes from Pokemon Database's sprite gallery, which you should use if you want pictures of Pokemon. (The gallery pages even generate Markdown code for you when you click on sprites -- simply copy and paste the code into your post and it will work.)
Option 3 (most control)
The last method is an HTML method, which gives you the most control because HTML is the "language" of web browsers. The equivalent markup in HTML for the Markdown method above is as follows:
<img src="https://img.pokemondb.net/sprites/diamond-pearl/shiny/nidoking.png">
A nice trick is rescaling images with HTML, which you can do by typing this (for example)...
<img src="https://img.pokemondb.net/sprites/diamond-pearl/shiny/nidoking.png" width="40">
...to get this:
If you have a really big image to attach, consider rescaling the actual file, or just attaching it as a plain link instead. Big images slow down page load times, even when they're rescaled using HTML.
