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authorKarl Berry <karl@freefriends.org>2011-05-28 00:47:23 +0000
committerKarl Berry <karl@freefriends.org>2011-05-28 00:47:23 +0000
commitcb0b51220dfb028490ca4c8898bf4832f1fe7a8a (patch)
treea7333718631307b556f5569ab3228edc4afc7e70 /Build/source/texk/dvipdfmx
parent9b250c80ddb1e70ccdee183214943700e6756ef4 (diff)
doc updates
git-svn-id: svn://tug.org/texlive/trunk@22630 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/dvipdfmx')
-rw-r--r--Build/source/texk/dvipdfmx/dvipdfmx-20110311/man/extractbb.116
1 files changed, 14 insertions, 2 deletions
diff --git a/Build/source/texk/dvipdfmx/dvipdfmx-20110311/man/extractbb.1 b/Build/source/texk/dvipdfmx/dvipdfmx-20110311/man/extractbb.1
index d6d98af5d8c..82c9715e681 100644
--- a/Build/source/texk/dvipdfmx/dvipdfmx-20110311/man/extractbb.1
+++ b/Build/source/texk/dvipdfmx/dvipdfmx-20110311/man/extractbb.1
@@ -1,4 +1,4 @@
-.TH "EXTRACTBB" "1" "28 April 2011" "20110311" "DVIPDFMx"
+.TH "EXTRACTBB" "1" "6 May 2011" "20110311" "DVIPDFMx"
.PP
.SH "NAME"
extractbb, ebb \- extract bounding box information from graphics files
@@ -60,9 +60,21 @@ Write output in dvipdfm's ``bb'' format.
.TP
.B -x
Write output in dvipdfmx's ``xbb'' format (default), which is the same
-as that used by the PDF format.
+as that used by pdfTeX.
.PD
.PP
+.SH "OUTPUT FORMATS"
+.PP
+Here are more details about the bb and xbb formats:
+.PP
+The original ebb (from dvipdfm) ignored density information in bitmap
+images, and generated bounding boxes with 100px = 72bp = 1in.
+Unfortunately, screenshots (especially) tend to look bad with this
+approach.
+.PP
+So, extractbb (from dvipdfmx) uses density information if present.
+Otherwise, it generates bounding box with 100px = 100bp. This is what
+pdfTeX does.
.SH "BUGS"
.PP
There is currently no way to specify which bounding box is taken