Missing Pdf file import ai signature

1. Putting the PDF into AI indicates that the font is missing. ;

2. open the PDF editor Acrobat 9 pro. ;

3. After opening the PDF editor, click Print Production in Advanced. ;

4. Click on the print production, and then click on the splicer to preview. ;

5. Enter the preview page and check "Convert all text into outlines and apply them to all pages of the PDF". ;

6. After being checked, you will be prompted that the operation cannot be undone. Click Yes. ;

7. After turning over the text, you can open the PDF with AI without losing the original font.