Hi,

sometimes, I see 1 pixel wide white stripes on generated PDFs. Sample here: http://blog.mausdompteur.de/uploads/rueck.pdf

I can create a more limited sample if need be. The rounding error can be seen on the left side of the page, where the image and the bleed meet.

I wasn't sure where the white strip was. The right side was ragged white. I tried 100% up to 1600% and saw color all the way to the edge some places on the right.

Jim Albright
Wycliffe Bible Translators

I think in this case the error is less than one pixel, and is rendering error in the PDF viewer, as you can keep zooming in and it doesn't really get any bigger. On way to avoid this might be to make the background image slightly bigger, and use background-position so that it extends into the bleed area.

I'll create a better test case soon.