Landscape printing works with pdftops from xpdf-utils but not with poppler-utils

Reported in Debian BTS:

Hello,

printing a landscape-orientied PDF works with pdftops from xpdf-utils
but with pdftops from poppler-utils (unstable and experimental) only the
part which fits on a portrait orientied page is printed.

Here is a diff of the outputs by pdftops:
--- form.poppler-utils.experimental.ps 2006-11-17 16:32:34.000000000 +0100
+++ form.xpdf-utils.ps 2006-11-17 16:33:21.000000000 +0100
@@ -1,16 +1,16 @@
 %!PS-Adobe-3.0
-%%Creator: xpdf/pdftops 3.00
+%%Creator: xpdf/pdftops 3.01
 %%LanguageLevel: 2
 %%DocumentSuppliedResources: (atend)
-%%DocumentMedia: plain 842 595 0 () ()
-%%BoundingBox: 0 0 842 595
+%%DocumentMedia: plain 595 841 0 () ()
+%%BoundingBox: 0 0 595 841
 %%Pages: 1
 %%EndComments
 %%BeginDefaults
 %%PageMedia: plain
 %%EndDefaults
 %%BeginProlog
-%%BeginResource: procset xpdf 3.00 0
+%%BeginResource: procset xpdf 3.01 0
 /xpdf 75 dict def xpdf begin
 % PDF special state
 /pdfDictSize 15 def
@@ -462,12 +462,15 @@
   /eth/ntilde/ograve/oacute/ocircumflex/otilde/odieresis/divide
   /oslash/ugrave/uacute/ucircumflex/udieresis/yacute/thorn/ydieresis]
 pdfMakeFont
-842 595 false pdfSetup
+595 841 false pdfSetup
 %%EndSetup
 %%Page: 1 1
 %%BeginPageSetup
-%%PageOrientation: Portrait
+%%PageOrientation: Landscape
 pdfStartPage
+90 rotate
+1.66533e-15 -594.647 translate
+0.9988 0.9988 scale
 0 0 842 595 re W
 %%EndPageSetup
 [] 0 d
@@ -482,6 +485,8 @@
 [0] SC
 false op
 false OP
+0 0 842 595 re
+W
 q
 q
 [1 0 0 1 42 551] cm

I'm reporting this bug against cupsys because it's the package with
which I'm experiencing the problem, but it might be a bug in
poppler-utils. However before reassigning, a conflict against the current
version of poppler-utils might be warranted.

Thank you,
  Silvestre