We experience the same issues. When I asked around, I was told that it's a limitation of PDF.js and that Mozilla was planning on ditching it. I was disappointed to see that 68 is still using it.
In a traditional office environment (i.e. lots of paper, printing, forms), PDF printing is Firefox's biggest shortcoming. Edge and Chrome have much better PDF and printing support. Of course plugins are gone now, but you can disable PDF.js and have PDFs download and open in a separate application. ----------------------------------------- Jason Jackson Computer Systems Technician North Vancouver School District From: Enterprise <[email protected]> On Behalf Of Gaudreau, Jonathan Sent: July 4, 2019 1:13 PM To: [email protected] Subject: [EXTERNAL] [Mozilla Enterprise] PDF files are printed in the wrong orientation Hello, We have an issue with pdf file that are generated from an SAP Fiori app (web) that is always printing in the wrong orientation. The pdf preview is handled by the native pdf handler of firefox and when we are previewing it, it shows in the right orientation (landscape) and in the right format (8 ½ x 11 inches or letter) When we print it though, the orientation of the form changes to Portrait and the size to 4'' by 11''. We have a set of policies that are set by GPO and some others in the configuration file but none defines any parameters for the pdf handler. I have tried messing with some flags in about :config like pdfjs.enablePrintAutoRotate to false and true, the result is the same. Also, I have found that Firefox keeps tracks of the printer's configuration by creating new preferences in about :config. Ex : So let's say I have a printer with a universal printer driver that it's orientation configuration is by default to Portrait, Firefox keeps track of this by creating an orientation preference for this printer so that the next time I print, these parameters are (I think) pass to the printer's driver. I have changed the value of this preference and I was able to make it print in the landscape format. Knowing that, I have configured this preferences so that none of the printer's configuration are set in Firefox : [cid:[email protected]] I have many questions regarding this issue : 1- Can anyone recommend me a configuration for the pdf.js preferences in Firefox that would help me with my issue? 2- Where can I find a documentation that would at least gives a little description of all the configurable preferences in Firefox ? 3- Why printing in Chrome/Edge Chromium does not alterate the pdf form and come out the printer perfectly ? Thank you for your help ! ______________________________________ Jonathan Gaudreau | Analyste environnement bureautique Section - Parc & Gestion des actifs (T.I) Direction exécutive des technologies de l'information et innovation Place Bonaventure, 800 de la Gauchetière Ouest, bureau 8440 (514) 350-0800 poste 81377 [http://www.stm.info/sites/default/files/media/doc/2019/signature2019.png]
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