Can not flatten the PDF

[Avemaar]

I generate a new PDF with the filled data but Firefox can not render it correctly so i tried to flatten the PDF so i used:

$pdf = new FPDM('pattern.pdf'); $pdf->Load($fields, true); // second parameter: false if field values are in ISO-8859-1, true if UTF-8 //$pdf->Flatten(); $pdf->Merge(); $pdf->Output();

command which make unreadable the pdf in every platform.

[dansleboby]

flatten field data as text and remove form fields (NOT YET SUPPORTED BY FPDM)

You need to have pdftk

[imclean557]

It's supported by fpdm if you have pdftk, but it would be nice to have it as pure PHP.

[tertek]

I have installed pdftk but still $pdf->flatten not working. Anyone else having this experience?

[dskurth]

Having the same problem. The call crashes the page. Seems to make the PDF file a ""call"

Fatal error: Uncaught Error: Call to undefined function