Why do you think that it's hard ?

Because every time I try to add an image even though it is within the really odd parameters I still get the red error box!!
I basically gave up a couple of years ago but I saw a TV series that needed a 'main image' so I thought I'd try again.
But nope, as usual, I get the error message.

Did your image have the correct ratio and minimum resolution ?

@superboy97 said:

Did your image have the correct ratio and minimum resolution ?

Please reread the first sentence of my second comment.

I wish TMDB could take non-JPG files when uploading backdrops, profiles, posters, etc. It would make life a whole lot easier.

@bratface said:

@superboy97 said:
Did your image have the correct ratio and minimum resolution ?

Please reread the first sentence of my second comment.

If I understand correctly, your images meet the basic rules.

Posters must meet the following criteria:  
    A maximum resolution of 2000x3000  
    A minimum resolution of 500x750  
    Aspect ratio of 1:1.5 (2:3)  

And they are .jpg images.

So we have to research what other reason stops you from adding images.
Considering that countless people add countless images every day.

1. Can you tell us your device/operating system/browser?
   
2. Which DNS are you using? Have you tried changing?
   
3. Can you tell me the country and ISP you are using? Have you tried other ISPs?
   Maybe it's a legal restriction issue in your country/ISP.
   

And we can do a test.
Can you provide a link to an image that you tried to upload and failed and which film/tvshow this attempt was for?

I recently found this site as a very helpful tool in getting the correct parameters. It's easy to use!

@MacArthurParker said:

I recently found this site as a very helpful tool in getting the correct parameters. It's easy to use!

Thanks, I'l give it a try.

@bratface said:

Why do you make it SO HARD to add images??

soooooo true

@bratface said:

Why do you make it SO HARD to add images??

It's ridiculous. Like, is it really necessary that I need to convert everything to a jpeg and make it fit the ultra specific parameters that can make the image look worse? Every time I think I have it right, it tells me I'm wrong and it ends up taking so long that it's just not even worth it anymore.