Am 04.05.2015 um 12:53 schrieb Henning Hraban Ramm <texml@fiee.net>:

Hi, I hope BachoTeX was a success!

Is it possible to use the float placing mechanisms for pictures that go beyond the type area or even beyond the page?

In the book I’m typesetting, most pictures need to fill the whole width of the page (i.e. plus 3mm bleed), but not all cover a full page.

I don’t know how to tell \externalfigure or \placefloat a negative offset.
Or can I use layers with floats? Of course the text should flow around the pictures.

Does the details manual  [1] answer your questions?

[1] http://pragma-ade.com/show-man-27.htm

Wolfgang