"Post-processing of the image failed likely because the server is busy or does not have enough resources. Uploading a smaller image may help. Suggested maximum size is 2500 pixels." when trying to upload a picture to WordPress.

Fixing issues with uploading pictures to WordPress Media Library

This article will go through different solutions for fixing issues with uploading pictures to your WordPress Media Library. There’s plenty of reasons that could cause this issue – and a couple of different ways to bump into it. I’ll be proposing a few different ways to fix the issue in your installation. Unlike some of the more aggravated users online suggest, this isn’t likely a bug in WordPress – rather, it’s a configuration / compatibility issue. Luckily, it’s usually something you can fix yourself. Problem…Continue reading Fixing issues with uploading pictures to WordPress Media Library