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Can I change default display width in built-in PDF Viewer?

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  • 4 have this problem
  • 9360 views
  • Last reply by cfcentaurea

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I pretty much always want to view PDFs in "page width" but the default "automatic zoom" setting always displays them to fill the height rather than the width of the window and I have to change it manually every time I view a PDF. Can I change this setting somewhere?

Chosen solution

hi cfcentaurea, you can set a default view like this: enter about:config into the firefox address bar (confirm the info message in case it shows up) & search for the preference named pdfjs.defaultZoomValue. double-click it and change its value to page-width (this should have an effect on all new documents you open).

https://github.com/mozilla/pdf.js/pull/3850

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Chosen Solution

hi cfcentaurea, you can set a default view like this: enter about:config into the firefox address bar (confirm the info message in case it shows up) & search for the preference named pdfjs.defaultZoomValue. double-click it and change its value to page-width (this should have an effect on all new documents you open).

https://github.com/mozilla/pdf.js/pull/3850

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Thanks so much, philipp, that seems to have done the trick!