How to supplement PDF files?

You can typeset in PDF or COREIDRWA by adding plug-ins. You can typeset curves in COREIDRWA after transferring them in PDF, or you can directly open a higher version of the PDF file of COREIDRWA. When opening directly, you can directly typeset curves in COREIDRWA by selecting curves in the pop-up operation interface. PDF processing of missing fonts: Method 1 (1), create a new AI blank document and put it in the form of a link. (2) Object-Mosaic Transparency: high resolution setting vector 100 line draft, text resolution 1200-2400PPI gradient, grid resolution 300-400PPI "All text to curve": selected. "Preserve overprint and spot color": Preserve spot color or spot color conversion 4C output. Typesetting, text/line black processing, printing color separation. Method 2: install Adobe Acrobat-7.0 PRO to open the missing font PDF file; 1. document-adding watermark and background-opacity: 0%2. Tools? -prepress production-mosaic transparency-text to curve, application. Save another PDF and add it to AI and CDR.