Why pasted text
arrives broken.
Plain explanations of the problems these tools solve — what actually causes them, and how to fix them properly.
Why text copied from a PDF has broken line breaks
Every visual line ending becomes a hard line break, words split across lines keep their hyphens, and justified text arrives full of double spaces. The cause is structural, not a bug in your PDF reader.
How to remove Markdown from ChatGPT, Claude, and Gemini output
Chat interfaces render Markdown, so what you see is formatted while what you copy is the raw syntax. Paste it somewhere that does not render Markdown and the asterisks show up.
What invisible Unicode characters are and why they break things
A form rejects an email address that looks perfect. Two identical strings compare as different. A search finds nothing. The usual cause is a character that occupies space in the data but paints nothing on screen.