The fonts in the in file are not loading correctly in the flipbook. In every other PDF viewer (desktop software) I have tried such as Acrobat, native OSx preview, chrome browser, Word etc the document fonts are displayed correctly. Its not all fonts either.
and PDF https://www.transfernow.net/dl/20230726terwDbmI - on a free transfer site ( valid 7 days )
This file is made monthly and last 2 months has failed. The producer advises no change BUT when I look at the file I do see this information change.
When I viewed the source.
Here is the current PDF (linked above)
Creator CCI Europe (PDFGenerator Release CUEPrint22.214.171.124z)
Producer Artifex Ghostscript 10.01.1
Here is an older one
Creator CCI Europe (PDFGenerator Release CUEPrint126.96.36.199f)
Producer Artifex Ghostscript 9.55.0
So the ghost script version has changed?