Poppler 26.04.0 regression: Google Slides PDFs show blank pages in Evince/Okular

I am reporting a reproducible Poppler regression affecting Manjaro package versions:

  • poppler 26.04.0-1
  • poppler-glib 26.04.0-1
  • poppler-qt6 26.04.0-1

Upstream Poppler report:

Summary:
A PDF exported from Google Slides displays as blank pages in Evince and Okular with Poppler 26.04.0-1.
The same PDF displays correctly after downgrading poppler, poppler-glib and poppler-qt6 to 26.03.0-1.

Minimal reproducer:

  1. Create a Google Slides presentation with two slides:
    • Slide 1: “test 1”
    • Slide 2: “test 2”
  2. Export using:
    Google Slides → File → Download → PDF Document (.pdf)
  3. Open the PDF with:
    evince test-slides.pdf
    okular test-slides.pdf

Observed with Poppler 26.04.0-1:

  • Evince shows blank pages.
  • Okular shows blank pages.
  • Firefox/PDF.js shows the PDF correctly.
  • pdftocairo renders the pages correctly to PNG:
  pdftocairo -png -f 1 -l 2 -r 150 test-slides.pdf test-page

Observed after downgrading to Poppler 26.03.0-1:

  • Evince shows the PDF correctly.
  • Okular shows the PDF correctly.