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5.5 Too small bounding boxes

The bounding box of a preview is determined by the LaTeX package using the pure TeX bounding boxes. If there is material extending outside of the TeX box, that material will be missing from the preview image. For example this happens for the label-showing boxes from the showkeys package (which has its own variant in preview-latex). Should this happen to you, try setting preview-fast-conversion to `Off' (see The Emacs interface). The conversion will take slightly more time, but instead use the bounding boxes from the EPS files generated by Dvips.

Dvips generally does not miss things, but it does not understand PostScript constructs like \resizebox or \rotate commands, so will generate rather wrong boxes for those. Dvips can be helped with the psfixbb package option to preview (see The LaTeX style file), which will tag the corners of the included TeX box. This will mostly be convenient for pure PostScript stuff like that created by PStricks, which Dvips would otherwise reserve no space for.