X-Git-Url: https://wimlib.net/git/?p=wimlib;a=blobdiff_plain;f=doc%2Fimagex-optimize.1.in;h=8ccbaa7dcb5c2a7c5957f20fb976dc28eace2457;hp=fd5a6a2db63dd6c4e82182376f7c086419e2e0f3;hb=2254a0fc3f1d7af1151ee83f3458f44339b5028b;hpb=2159b8808998d2a75380ef6339147e48a39e3bae

diff --git a/doc/imagex-optimize.1.in b/doc/imagex-optimize.1.in
index fd5a6a2d..8ccbaa7d 100644
--- a/doc/imagex-optimize.1.in
+++ b/doc/imagex-optimize.1.in
@@ -39,6 +39,15 @@ a slightly worse LZX compression ratio than Microsoft's software.  So, you may
 not want to specify \fB--recompress\fR when optimizing a LZX-compressed WIM
 created on Windows with Microsoft's ImageX.
 .TP
+\fB--compress-slow\fR
+With \fB--recompress\fR: Spend even more time compressing the data in order to
+achieve a higher compression ratio.  Currently, this only has an effect with LZX
+("maximum") compression.  Depending on the data, compressing with this option
+will take around 10 to 15 times longer and produce a LZX-compressed WIM about 1%
+to 5% smaller than one produced with the default LZX compressor.  Depending on
+the data, the resulting WIM may be approximately the same size (typically no
+more than 0.4% different) as a LZX-compressed WIM produced by WIMGAPI.
+.TP
 \fB--threads\fR=\fINUM_THREADS\fR
 Number of threads to use for compressing data.  Default: autodetect (number of
 processors).  This parameter is only meaningful when \fB--recompress\fR is also