1243580 - PDF.js doesn't honor "/ViewerPreferences <</PrintScaling /None>> in Catalog

Status: UNCONFIRMED

(Firefox :: PDF Viewer, defect, P3)

Description

[Dean Tribble]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.111 Safari/537.36

Steps to reproduce:

using any PDf, print and set scaling preferences to "scale to fit". 
Download/Open PDF file with a ViewerPreferences with PrintScaling of "None"
Print it


Actual results:

displayed rendering was scaled down a little. When printing, "scale to fit" was still set.  printed item does not have accurate placement of printed elements.


Expected results:

The view should have been full-sized. when printing, Scale to fit should have been turned off. Printing should have placed items accurately.

Comment 1

[Dean Tribble]

For consideration when prioritizing this, an important use for PDF is precise layout of a paper document. Paper checks, for example, require precise placement of the account number et al (MICR) at the lower edge. Without control of print scaling, Mozilla cannot render precise documents downloaded from cloud services.