Thank you Daniel, JiffyReader works best with html resources. PDFs are not supported at all.
Follow this link for more information on working with pdf files
https://github.com/ansh/jiffyreader.com/issues/20#issuecomment-1207807911

Reach out to usfor more help if you run into issues working with the html files

To work with PDF files, you will have to convert the pdf to an html file.
Please note not all pdf files will convert accurately.
After conversion to html you will and should be able to use jiffyReader with your html file.

If you open a local html file in google chrome, you will have to grand JiffyReader permissions to work with local files, please consult our FAQ for more information on how to accomplish that.

Google Books has limited support for pdfs, some uploads may work and most will not. However it seems work well for EPUB files during testing.

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