Question:
On Ubuntu 16.04 / PHP 5.6 we were successfully converting an HTML snippet to PDF.
On Ubuntu 20.04 / PHP7, the html2pdf module is rendering the line-height differently than the what is expected and different than on Ubuntu 16.04.
I am using the HTML2PDF module for Ubuntu 20.04 here:
https://pdftron.s3.amazonaws.com/custom/ID-zJWLuhTffd3c/support/html2pdf/HTML2PDF64-Ubuntu20.tar.gz
Answer:
Apparently the fonts on Ubuntu 20.04 did not map the same as on Ubuntu 16.04.
Running fc-match "Helvetica" on command line yielded different results:
16.04: “Nimbus Sans L” “Regular”
20.04: “Nimbus Sans” “Regular”
Changing the font-family from “Helvetica” to “Nimbus Sans L” corrected this issue.