精确将html转换为pdf

Question

I am writing an application (using Laravel framework), where user manually designs a poster, flyer and some other printable stuff. So i made a JavaScript tool to allow above. In backend i have to make itprintable, so i tried to convert it to pdf. And that's where problems occure ie:

1. html design is made in px and as far now i don't know how to recalculate it to mm which pdf operates in,
2. fonts are being renderet different etc.

I tried using https://github.com/dompdf/dompdf , https://github.com/barryvdh/laravel-snappy (which uses http://wkhtmltopdf.org/ ) but both give similar outputs.

Does anybody know a solution how to convert content made in browser to printable version?

Answer 1

use this formula to convert pix into mm:

$witnInMM = floor(($withInPx * 25.4) / $dpi]);
$heightInMM = floor(($heightInPx * 25.4) / $dpi]);

Also I am working on a similar project and to convert the images to pdf I am using Imagick. I tried snappy laravel but won't work with CMYK colours.