How do I have several pages of a comic in the same long image, I tried to do this in Photoshop but the file cannot be created

Example: rule34.xxx/index.php?page=post&s=view&id=8993015

You can do it in photoshop

how?

If you're planning to upload it here then I recommend you don't as merely stitching images together would be a low-effort edit and would get deleted.

Stitching images together into a massive strip can be done in pretty much any image editing software. Just make one very long file, import all the pages to it and arrange them. It's so easy that even a caveman can do it.

You tell them clothes aren't funny or original.

Canva.com has a comic maker, not sure how good it is.