Base64 decode

You've probably got an API response open right now with a field that looks like noise. It's a long Base64 string, and someone on your team has already said, “That's the PDF.” The problem is that a Base64 blob isn't a document users can open. It's just an encoded representation of one. That's where a lot of quick examples stop too early. They decode the string, write a file, and call it done. In production, that's not enough. A PDF can decode successfully and still be unusable, blank, or ma