Bugzilla

To help visualize for those who don't have a mac handy, here's preview showing 3 files:
left: original doc (attachment 8724920 [details])
middle: Firefox's save-to-PDF output (attachment  9289104 [details])
right: Another iteration of save-to-PDF (attachment 9289124 [details])

These PDF files all look the same if I view them in Firefox or Chrome or Evince, but they look very different in Preview (and similarly look different when actually printed on mac, presumably due to shared system PDF-rendering mechanisms there).

To help visualize for those who don't have a mac handy, here's preview showing 3 files:
left: original doc (attachment 8724920 [details])
middle: Firefox's save-to-PDF output of that original document (attachment  9289104 [details])
right: Firefox's save-to-PDF output of that^ save-to-PDF output (attachment 9289124 [details])

These PDF files all look the same if I view them in Firefox or Chrome or Evince, but they look very different in Preview (and similarly look different when actually printed on mac, presumably due to shared system PDF-rendering mechanisms there).

To help visualize for those who don't have a mac handy, here's a screenshot of macOS Preview's rendering of 3 PDF files:
left: original doc (attachment 8724920 [details])
middle: Firefox's save-to-PDF output of that original document (attachment  9289104 [details])
right: Firefox's save-to-PDF output of that^ save-to-PDF output (attachment 9289124 [details])

These PDF files all look the same if I view them in Firefox or Chrome or Evince, but they look very different in Preview (and similarly look different when actually printed on mac, presumably due to shared system PDF-rendering mechanisms there).