Problems with font displaying in some pdf-files. Letter 'o' is substituted with digit '0'

Question

Hi everybody !- I have a strange problem - when open pdf-version of IT-magazine 'ComputerActive' in Adobe Acrobat Reader XI with patch #23 letter 'o' is substituted with digit '0'. All other magazines that I collect have no such problem - letter'o' is showed as letter 'o'. Also, this magazine (Computer Active) opened in other browsers that I use (Firefox, Edge, LibreWolf) also shows letter 'o' correctly.- I'm using Windows 10 Home/64-bit and in Adobe Reader. In the 'Edit' -> 'Preferences' -> 'Page display' -> option 'Use local fonts' is selected. Windows is not localized - settings are English/USA.- So, where is the catch !? I old Acrobat Reader, in Windows 10 or in- P.S. I attached one page with letter issues painted yellow - just as illustration of problem.Regards,Nickie K.

creative explorer · Answer

@niks_8367 that's likely a font issue. PDFs can either embed the entire font or a subset of it. If a font is not embedded correctly, Acrobat may substitute it with a similar-looking font on your system to maintain the page layout. In this case, it appears to be a substitution error.

Adobe Acrobat Reader XI was released on October 15, 2012! That is defintely quite old and no longer supported. Try updating to the latest version of Adobe Acrobat Reader (free) is the most effective solution. This will provide you with the most current app and likely fix those bug fixes. https://get.adobe.com/reader?!

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