If a PDF was altered in Apple Preview and now shows cidfontf1 errors, you will need to open the document in official Adobe software to repair the mapping. Open the file in (which is free).
In programming libraries such as Perl's PDF::API2, there is a method called new() used to create a CIDFont object: Example: $font = PDF::API2::Resource::CIDFont->new $pdf, $name
To understand cidfontf1 , you have to break down its components. The "CID" stands for . cidfontf1 font new
To help pinpoint the easiest workaround for your specific file, please let me know:
Commercial production printers and RIP (Raster Image Processor) software often reject files containing unmapped CID fonts, stalling print jobs completely. If a PDF was altered in Apple Preview
If you’re seeing /CIDFont/F1 in a PDF or PostScript file, it refers to a (commonly used for CJK fonts – Chinese, Japanese, Korean). F1 is just a local name for the font resource.
for fixing CIDFont+F1 errors in Adobe software, or should we look into the history of CID technology CIDFont+F1 issue - Adobe Community The "CID" stands for
WARNING: Could not find CIDFont 'cidfontf1 font new'
If the document uses Asian or extended character sets, you need the official auxiliary fonts.