Oct4Pie/zero-zerogpt ? reverse-engineered prompt

Build me a React app that lets me paste in text and then transform the spaces into different Unicode space characters so I can see how the output changes and copy it easily. I want it to have simple modes for plain text, rich text, PDF, and Markdown, with a clean preview for each spacing option and a way to export the result.

For PDF uploads, it should read text based PDFs, keep the general layout as much as possible, and generate a new PDF with the chosen spacing applied. For Markdown, it should let me drag and drop a .md file, preserve the structure like headings, lists, links, and code blocks, then download the edited file. Add a clear text button, drag and drop support where it makes sense, and make the whole thing feel polished and easy to use.

If you need to check current docs for any libraries, go ahead and look them up online.