If the image is too large and the URL doesn’t end in an image format, then the image is being constrained by the HTML/JavaScript/CSS code of the underlying website. You can work around this in a few ways. 

One way, is to look for a Safari Extension that is designed to display all images of a page in a new tab. Searching for Safari Extensions will yield lists of extensions in which you can find something in the “images” category. 

Probably the easiest would be to right click, or control click on the image, which will cause a contextual menu to pop up. Select the menu listing that says “open image in new tab/window”. At that point, the image will behave as explained in the first paragraph above. 

Not all images will be able to be right clicked on, even if they appear to visually meet this criteria. Some images can be pushed to the background via code like JavaScript or CSS making the image reside on a “layer” underneath what you are perceiving your click to actually happen on. 

Hope that helps. 

I think its now sorted itself out, thanks for the detailed comment
very much appreciated it. Also I like to say the people on this site are really friendly so thanks.

Perhaps you could provide a more detailed explanation of the problems you are having.

Maybe you are merely asking what to do, in which case, select the item in the menu, or click on the larger/smaller “A” icon in the Safari Toolbar, if it is enabled.

I would perform these steps:
1) Create a new account in OS X, you can call it “test” and login to that account. Does the problem happen in that account? If it does then the issues is deeper than just Safari, if it does not, then the issue is something in your account.

Once you do step #1, you are safe to delete the “test” account.

I am going to assume that the new account will show the fonts correctly. In that case, move to step #2

2) Quit Safari. Open your home folder at /Users/your-user-name and open the Library folder. You will see a folder called Safari. Move that folder to your Desktop. Now, also in the Library folder in your home folder, open the Preferences folder. You will see a file called “com.apple.Safari.plist”, move that file also to your desktop.

3) Now launch Safari. Has the problem gone away? I will suspect that it does. If it does, quit Safari, and move back into the Library folder, the Safari folder. You will see a new one already exists, and will have to delete that one first. Open Safari, most of your settings will now be back. If the problem has gone away, you now know you have a corrupt preferences file. Throw away “com.apple.Safari.plist”, it will have been recreated now.

If the problem is still there, you can go ahead and put the preferences file back in place. You will have to replace the new one that was auto created when Safari noticed you moved the original out of the way.

4) If you have ruled out the Safari folder in Library, and the Preferences file, this means that your fonts are somehow messed up. The trouble is, it could be fonts in your users folder, or fonts higher up in the system area. Let’s start with the above steps, and see where that gets you.

I changed the fonts under preferences to the standard ones but on some websites (google and gmail for example) some of the fonts are in this childish font which is super annoying. I can’t seem to find any other font settings and he doesn’t remember how he changed it.

Help anyone?

Do you have an example?

If I can’t solve this, I will have to switch browsers, although Safari has been my favorite.

Thanks for any help.

If I set Safari to the above setting, punctuation does not display properly. I find I have to use Unicode (UTF-8). Not sure why.

Sometimes we all get tunnel vision, thanks again.