Error: Invalid Data. Review all error messages below to correct your data.
Why do spaces appear when I edit text?
Symptoms When I add a character to a certain text line, only an empty space appears. Other characters do appear, as I would expect them to.
Cause When you start editing a subsetted font, it can happen that a certain character is not embedded and that an empty space appears. When you start editing a subsetted font for the first time, you get a warning about that.
While a complete embedded font will have every character available, a subsetted font will only have the characters that are used in the PDF available.
Solution Embed the font completely. Note that this is only possible when the font is present on your system.