

Update: Print Bleed Support for Homebrewery V3
A few updates to the print bleed system I posted previously.
The core bleed logic is now separated from the theme-specific fixes, so the same system can be adapted to other Homebrewery themes.
New: bleed-aware images
I also added an {{imageHolder}} helper for images that need to respect the bleed boundaries, including masked images.
The holder uses a relative container, allowing the image and its mask to be positioned relative to the bleed-aware area rather than the default page dimensions.
There are a couple of quirks worth noting: the mask's top position is calculated from the top of the .imageHolder, and the mask itself has large empty areas above and below the visible masked area, so these need to be taken into account when positioning it. The mask height also needs to be specified explicitly.
PHB theme
I also redrew the footerAccent so that the artwork extends beyond the trim line. The original ended exactly at the page boundary, which meant that even a small cutting offset could potentially leave a visible gap. The new version gives the printer some safety margin.
DMG theme
I've now adapted the bleed system for the 5e DMG theme as well.
The DMG footerAccent is still the original artwork, so unfortunately it ends exactly at the trim line. I haven't redrawn it because I don't have the illustration skills to extend it naturally while keeping the original style.
I'm currently looking for an artist who could help with extending the DMG footer artwork beyond the trim line. If that's something you'd be interested in helping with, please let me know.
The system itself works correctly with both themes, but other theme-specific elements may still require individual CSS hacks to make them fully bleed-aware.
Here’s the original post: Print Bleed Support
Working examples: