How to format a LinkedIn post
Write or paste your post into the editor. Select the words you want to stand out and press a style button. Bold, italic, and bold italic toggle on and off, so pressing the same button again turns the style back into plain text.
Select a few lines and press List to turn them into bullet points. When you are done, press Copy post and paste it into the LinkedIn post box. The formatting comes with it because it is made of Unicode characters, not editor styling.
Formatting that helps a post get read
LinkedIn shows only the first few lines of a post before the See more link, so the opening line does most of the work. A short, bold hook followed by a blank line is easier to scan than a dense paragraph.
Use bold for the one idea you want remembered, not for whole sentences. Short paragraphs, blank lines between them, and a bullet list for steps or takeaways make long posts much easier to read on a phone.
Keeping blank lines in place
LinkedIn can drop extra blank lines and trailing spaces when you paste a post, which squashes your spacing. With Keep blank lines turned on, the copied post fills each empty line with an invisible character so the spacing stays as you wrote it.