Invalid CFF header

Hello I am using this package from quiet some time and this error occurred first time. While trying to load preview of the following pdf KANGU-08-07-2019.pdf i got this: Unhandled Rejection (UnknownErrorException): Invalid CFF header

stack:

UnknownErrorExceptionClosure
node_modules/pdfjs-dist/build/pdf.js:830
(anonymous function)
node_modules/pdfjs-dist/build/pdf.js:833
__w_pdfjs_require__
node_modules/pdfjs-dist/build/pdf.js:79
(anonymous function)
node_modules/pdfjs-dist/build/pdf.js:287
__w_pdfjs_require__
node_modules/pdfjs-dist/build/pdf.js:79
(anonymous function)
node_modules/pdfjs-dist/build/pdf.js:271
(anonymous function)
node_modules/pdfjs-dist/build/pdf.js:273
webpackUniversalModuleDefinition
node_modules/pdfjs-dist/build/pdf.js:23
(anonymous function)
node_modules/pdfjs-dist/build/pdf.js:24
./node_modules/pdfjs-dist/build/pdf.js
http://localhost:3004/static/js/0.chunk.js:92850:30

Full error:

UnknownErrorException {name: "UnknownErrorException", message: "Invalid CFF header", details: "FormatError: Invalid CFF header"}

Additional logs: Warning: Not enough parameters for hstem; actual: 0, expected: 2 Warning: Found too many parameters for stack-clearing command Warning: Missing subrsIndex for callsubr Warning: Failed to compile font g_d0_f1 Warning: Failed to load font ‘g_d0_f1’: ‘SyntaxError: Invalid font data in ArrayBuffer.’.

[oze4]

@patryk2703 after testing out this issue for a bit, the problem seems to reside with pdf.js, which is what this package wraps around. Specifically, the issue seems to have to do with loading the font… Here is a link to a similar issue.

Perhaps you can try to change the font being used?

Even when using the built in version of PDF.js (that comes with Firefox) I am unable to open your PDF file… this is also what makes me believe the issue is with PDF.js and not react-pdf.

Lastly, the console is full of errors when trying to load your file… This is using the built in PDF.js that comes with Firefox, but these same errors are in the console when using react-pdf:

[oze4]

Unfortunately, I do not know how to prevent that error… Although, I know it has to do with webpack hot-reloading…

That error only occurs in development mode - it does not happen in production.

Feel free to fork this repository, which I created as a demo (it runs in production mode), as it demonstrates how that error does not happen in production mode.