Cannot open the generated pdf

[samirqh]

Hi Sir,
I downloaded the code and used the examples that you provided,
/examples/example_11.php
but i changed the code on line 58 to echo $R->render('pdf');
to generate PDF
the pdf file generated but the file cannot be open and seems its damage.

what is the problem ? and how can I solve it ?
Thank you for your cooperation

[vernes]

Did you install some pdf library (tcPDF, DomPDF or mPDF)?
You can open pdf file in text editor to see errors inside

[Quix0r]

@samirqh open it in a hex editor to see its true content. If you can see error messages there, then well, it is indeed broken because it is no valid PDF. and install one of the mentioned lib, which PhpExcel (not PhpReport) requires to function.