Modifying this control will update this page automatically

Embed text in a PDF
Preview can recognize text in an image-based PDF (like a scan or a picture of a document) and embed the text in the document.
Go to the Preview app
on your Mac.
Open a PDF, then choose File > Export.
Select Embed Text.
Preview scans for text and embeds it in the PDF so that it can be selected in any PDF viewer.
Note: This option only appears if no text was previously recognized in the document.