On trying to render the Arabic font family on MAC OS, The browser substitutes the actual font to "Times New Roman" that's why user can find a difference in text rendering between browser and pdf. This is actually a technical challenge with the onset of Firefox Quantum that some fonts of Arabic do not load in MAC Firefox browser. Impact Areas: This issue is specific to: Browser: Firefox 57 and above (works on lower versions and also works on chrome safari all versions) OS: MAC only all versions (As it works on Windows /Linux machine having Firefox 57 and above) Text Type: Arabic only (As English text works in MAC browser having Firefox 57 and above) Sample screenshot is attached also providing link where you can download files https://www.dropbox.com/s/vh6x3wq4ol2srr8/html.zip?dl=0