Rasterizing turns live text into a grid of pixels. Outlining, or converting to curves, turns it into vector shapes. Either way, the text can look unchanged while the underlying characters are gone. This often happens during file conversion, export for print, or when artwork is built from flattened sources.

Why it matters for labeling

Software that compares text, or searches a label for an allergen or a dosage, needs characters to work with. When text is flattened, a comparison has to rely on optical character recognition, which can misread characters, particularly in non-Latin scripts. It can also hide a difference: a changed character in outlined text may be invisible to a reviewer but present in the file.

Common mistakes

  • Sending a flattened PDF for review without the live-text source
  • Converting to image formats late in the process
  • Assuming a PDF that looks right contains searchable text
  • Not noticing text that has been flattened in only some language versions