RGBA PNG images are not rendered

[leroycep]

RGBA PNG images are not visible in the output PDF, though they do take up space. PDF renderers used include PDF.js, qpdfviewer, apvlv, and whatever the reMarkable tablet uses.

Using imagemagick to remove the alpha channel makes the images show up:

convert -alpha 1 flamer-1.png flamer-1-alpha-removed.png

Example:

test.md

# `flamer-1.png`:

![](flamer-1.png)

# `flamer-1-alpha-removed.png`:

![](flamer-1-alpha-removed.png)

flamer-1.png:

flamer-1-alpha-removed.png

test.pdf