An alternative way of generating PDF files with PHP is using FPDF, a free PHP class containing a number of functions for creating and manipulating PDFs. The key word here is free.

A security researcher has found a severe security flaw in one of the internet's most popular PHP libraries for creating PDF files. The vulnerability impacts TCPDF, one of the "big three" PHP libraries ...

In order to generate a PDF file from the word processing file of your work, it is strongly recommended that the PDF file is created on the computer on which the work was written, if possible. On other ...