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-rw-r--r-- | pnmtops.html | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/pnmtops.html b/pnmtops.html index 4c47317a..eddafc75 100644 --- a/pnmtops.html +++ b/pnmtops.html @@ -2,7 +2,7 @@ <HTML><HEAD><TITLE>Pnmtops User Manual</TITLE></HEAD> <BODY> <H1>pnmtops</H1> -Updated: 01 May 2010 +Updated: 10 December 2010 <BR> <A HREF="#index">Table Of Contents</A> @@ -22,6 +22,7 @@ pnmtops - convert PNM image to PostScript [<B>-equalpixels</B>] [<b>-bitspersample=</b><i>N</i>] [<B>-turn</B>|<B>-noturn</B>] +[<B>-textalphabits=</B>{<b>1</b>,<b>2</b>,<b>4</b>} [<B>-rle</B>|<B>-runlength</B>] [<b>-flate</b>] [<b>-ascii85</b>] @@ -199,6 +200,22 @@ gets turned automatically to better fit the page. If you specify the its shape; If you specify <B>-noturn</B>, <B>pnmtops</B> does <em>not</em> turn it no matter what its shape. +<dt><b>-textalphabits=</b>{<b>1</b>,<b>2</b>,<b>4</b>} + +<dd>This controls subsample antialiasing of text. Antialiasing is a form of +smoothing that eliminates jagged edges on characters. Subsample antialiasing +is a kind of antialiasing that uses subpixels in a box, and the value of this +option is the size of that box. 4 gives you the best looking output, while 1 +causes no antialiasing. Smaller numbers make <b>pnmtops</b> use less CPU +time. + +<p>Pstopnm uses Ghostscript's <b>TextAlphaBits</b> parameter for this. + +<p>The default is 4. + +<P>This option was new in Netpbm 10.53 (December 2010). Older versions of +<b>pnmtops</b> do no antialiasing. + <DT><B>-rle</B> <DT><B>-runlength</B> |