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| author | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2015-07-14 03:12:14 +0000 |
|---|---|---|
| committer | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2015-07-14 03:12:14 +0000 |
| commit | 0ef86ea50c13762ae1b3687a16e14d7ea613852e (patch) | |
| tree | 8a0263c91ccdb3fe56c332cda595567df63b8352 /pbmtoescp2.html | |
| parent | 41dbb68aee7a8f627d15a5ac74342272811c0e95 (diff) | |
| download | netpbm-mirror-0ef86ea50c13762ae1b3687a16e14d7ea613852e.tar.gz netpbm-mirror-0ef86ea50c13762ae1b3687a16e14d7ea613852e.tar.xz netpbm-mirror-0ef86ea50c13762ae1b3687a16e14d7ea613852e.zip | |
miscellaneous update
git-svn-id: http://svn.code.sf.net/p/netpbm/code/userguide@2605 9d0c8265-081b-0410-96cb-a4ca84ce46f8
Diffstat (limited to 'pbmtoescp2.html')
| -rw-r--r-- | pbmtoescp2.html | 69 |
1 files changed, 52 insertions, 17 deletions
diff --git a/pbmtoescp2.html b/pbmtoescp2.html index 06cc5c8d..b847550b 100644 --- a/pbmtoescp2.html +++ b/pbmtoescp2.html @@ -2,7 +2,7 @@ <HTML><HEAD><TITLE>Pbmtoescp2 User Manual</TITLE></HEAD> <BODY> <H1>pbmtoescp2</H1> -Updated: 4 April 2005 +Updated: 14 July 2015 <BR> <A HREF="#index">Table Of Contents</A> @@ -23,6 +23,7 @@ may use two hyphens instead of one to designate an option. You may use either white space or equals signs between an option name and its value. + <H2 id="description">DESCRIPTION</H2> <p>This program is part of <a href="index.html">Netpbm</a>. @@ -35,6 +36,12 @@ understand the ESC/P2 printer control language (e.g. the Stylus models). For older Epson 9-pin dot matrix printers, which use the ESC/P protocol, see <B>pbmtoepson</B>. +<p>The printed output has one pixel for each pixel of the input image, except +that it is padded up to the stripe size (see <b>-stripeheight</b> option) +vertically and to a multiple of 8 columns horizontally. Before Netpbm 10.72 +(September 2015), the output is instead truncated to those boundaries. + + <H2 id="options">OPTIONS</H2> <P>Input is read from file <I>pbmfile</I> if specified, otherwise from @@ -58,32 +65,60 @@ a printer control stream with RLE compressed raster graphic data set in the printer control stream. Another way of looking at it is a declaration of what the resolution of the input image is (PBM images don't have inherent resolution). Valid values for <i>dpi</i> are -<b>180</b> and <b>360</b>. See <a href="#hints">hints</a> for more -information on this. +<b>180</b>, <b>360</b>, and <b>720</b>. See <a href="#hints">hints</a> for +more information on this. <p>The default is <b>-resolution=360</b>. +<p>Before Netpbm 10.72 (September 2015), <b>720</b> is not valid. </dd> +<dt><b>-stripeheight=</b><i>n</i> + +<dd>This option controls the height of the stripes (number of raster lines) in +the output. + +<p>The default is 24. + +<p>This option was new in Netpbm 10.72 (September 2015). Before that, the +stripe size is always 24. + +<dt><b>-formfeed</b> + +<dd>This option causes <b>pbmtoescp2</b> to place a formfeed command at the +end of the output. + +<p>This option was new in Netpbm 10.72 (September 2015). + + +<dt><b>-raw</b> + +<dd>This option causes <b>pbmtoescp2</b> to generate only the data blocks. +It does not generate printer commands to set up the output (for example, +setting the line spacing). + +<p>You can use this to insert graphics into a larger printer command stream. + +<p>This option was new in Netpbm 10.72 (September 2015). + </dl> <H2 id="hints">HINTS</H2> -<P>RLE compresses very well bitmaps of line drawings, preferably -horizontal oriented contents like texts, sheets of music, etc. -However, bitmaps derived from photographs are not ideal for RLE. In -extreme cases, when no byte repetitions occur in the input, the result -will be even slightly bigger than the input. To avoid this, use -compression mode 0 to switch off RLE. - -<p>Each pixel in the input PBM image becomes one dot in the printed -output. Therefore, you must make sure the width and height of the -input are appropriate for the print resolution you choose and the -print area you want. E.g. if you print at 180 dpi and want the image -to print as 8 inches by 10, you must supply a PBM that is 1440 -pixels wide by 1800 pixels high. You can adjust the size of the -input with <b>pamscale</b>, <b>pamstretch</b>, <b>pbmreduce</b>, or +<P>RLE compresses very well bitmaps of line drawings, preferably horizontal +oriented contents like texts, sheets of music, etc. However, bitmaps derived +from photographs are not ideal for RLE. In extreme cases, when no byte +repetitions occur in the input, the result will be even slightly bigger than +the input. To avoid this, use compression mode 0 to switch off RLE. + +<p>Each pixel in the input PBM image becomes one dot in the printed output. +Therefore, you must make sure the width and height of the input are +appropriate for the print resolution you choose and the print area you want. +E.g. if you print at 180 dpi and want the image to print as 8 inches by 10, +you must supply a PBM that is 1440 pixels wide by 1800 pixels high. You can +adjust the size of the input +with <b>pamscale</b>, <b>pamstretch</b>, <b>pbmreduce</b>, or <b>pamenlarge</b>. |