If you are trying to open the file in Illustrator to edit graphics but the text is broken: Create a blank document in Illustrator. and select your PDF (do not embed it yet). Flatten Transparency Check the box for Convert All Text to Outlines
Open the PDF in the Apple Preview app , go to File > Export as PDF . This often "re-bakes" the fonts into a readable format. cid font f1 f2 f3 download top
For high-quality, legitimate font downloads, you should use established marketplaces like MyFonts rather than searching for "CID" download links, which are often unreliable. Are you trying to with these fonts, or CID+ Fonts - Adobe Community If you are trying to open the file
For CJK fonts, some popular and highly-regarded ones include: This often "re-bakes" the fonts into a readable format
Once you have identified the actual CID font names, here are the trusted download sources.