Refine your search by adding nonprinting symbols, such as tabs, to your search pattern.
To find nonprinting symbols (such as tab, paragraph, and end-of-flow symbols) and positions (such as the start of a paragraph or word), use the following character sequences. You don’t have to turn on Use Wildcards.
|Start of paragraph||\P|
|Nonbreaking space||\ (space)|
|Thin space||\i, \st|
|En space||\N, \sn|
|Em space||\M, \sm|
|Numeric space||\#, \s#|
|Discretionary hyphen||\- (hyphen)|
|Suppress hyphenation symbol||\_ (underscore)|
|Start of word||\<|
|End of word||\>|
For example, you could find empty paragraphs by searching for \P\p (beginning of paragraph followed by end of paragraph).
When you copy text from a PDF you often end up with paragraph breaks at the end of each line. To clean this up, search for \p and leave the Change text box empty, this will delete the paragraph break. Don’t use Change All, you’ll need to check each line to determine if you need to add a space.