If the completed PDF you download from Memsource contains any red fonts, this indicates missing fonts. Any missing characters are shown in red using a default, substitute font. Your can resolve these issues at transpdf.com by visiting the flight-checking summary for this document. You will then be able to substitute more appropriate fonts containing all the character shapes required for this translation.
Once you change the substitutions, re-generate the preview to see if all problems are resolved .
Click here for more instructions regarding the use of TransPDF by Iceni in Memsource.