Hi Martin,
Yes it looks like there’s currently an issue with some special characters, try renaming your PDF file from pisač.pdf to pisac.pdf and try again and it should work fine
I renamed it, I tried new pdf but still does not work.
error: Mixed Content: The page at ‘https://eknizky.sk/v-mediach/’ was loaded over HTTPS, but requested an insecure resource ‘http://flipbook.flowpaper.com/https://eknizky.sk/wp-content/uploads/2016/08/book.pdf’. This request has been blocked; the content must be served over HTTPS.
Looks like the plug in was not considering HTTPS/SSL properly. We have just updated the plug in to support HTTPS so this should be fixed if you update in the next 15-30 minutes
Closing this one as this should be resolved now let us know if still an issue
Thanks for you effort but not working. Now it is showing: That PDF is to large to display …. PDF has 58Kb. This is to large??