Kindle in landscape mode cropping pdfs at top and bottom
I have a kindle 4 non-touch. I go to great lengths to crop my pdfs so that I can read them confortably on the Kindle (converting to mobi is not an option because the pdfs are complex and have equations, tables, etc). However, when I'm in landscape mode, the Kindle always crops a tiny strip on the top and the bottom of every page (left and right are fine). I am very careful with the cropping to leave the content of the pdf intact and remove only the white margins, and in the original file the top and bottom of every page look fine.
Moreover, for some reason, the additional cropping is present only in landscape mode. In portrait mode I can see the complete page just fine, but it is too small to read.