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%%Version: 0.1
%%DocumentFonts: (atend)
%%Pages: (atend)
%%EndComments
%
% Version 3.3.2 prologue for troff files.
%

/#copies 1 store
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/formsperpage 1 def
/landscape false def
/linewidth .3 def
/magnification 1 def
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/orientation 0 def
/resolution 720 def
/rotation 1 def
/xoffset 0 def
/yoffset 0 def

/roundpage true def
/useclippath true def
/pagebbox [0 0 612 792] def

/R  /Times-Roman def
/I  /Times-Italic def
/B  /Times-Bold def
/BI /Times-BoldItalic def
/H  /Helvetica def
/HI /Helvetica-Oblique def
/HB /Helvetica-Bold def
/HX /Helvetica-BoldOblique def
/CW /Courier def
/CO /Courier def
/CI /Courier-Oblique def
/CB /Courier-Bold def
/CX /Courier-BoldOblique def
/PA /Palatino-Roman def
/PI /Palatino-Italic def
/PB /Palatino-Bold def
/PX /Palatino-BoldItalic def
/Hr /Helvetica-Narrow def
/Hi /Helvetica-Narrow-Oblique def
/Hb /Helvetica-Narrow-Bold def
/Hx /Helvetica-Narrow-BoldOblique def
/KR /Bookman-Light def
/KI /Bookman-LightItalic def
/KB /Bookman-Demi def
/KX /Bookman-DemiItalic def
/AR /AvantGarde-Book def
/AI /AvantGarde-BookOblique def
/AB /AvantGarde-Demi def
/AX /AvantGarde-DemiOblique def
/NR /NewCenturySchlbk-Roman def
/NI /NewCenturySchlbk-Italic def
/NB /NewCenturySchlbk-Bold def
/NX /NewCenturySchlbk-BoldItalic def
/ZD /ZapfDingbats def
/ZI /ZapfChancery-MediumItalic def
/S  /S def
/S1 /S1 def
/GR /Symbol def

/inch {72 mul} bind def
/min {2 copy gt {exch} if pop} bind def

/setup {
	counttomark 2 idiv {def} repeat pop

	landscape {/orientation 90 orientation add def} if
	/scaling 72 resolution div def
	linewidth setlinewidth
	1 setlinecap

	pagedimensions
	xcenter ycenter translate
	orientation rotation mul rotate
	width 2 div neg height 2 div translate
	xoffset inch yoffset inch neg translate
	margin 2 div dup neg translate
	magnification dup aspectratio mul scale
	scaling scaling scale

	addmetrics
	0 0 moveto
} def

/pagedimensions {
	useclippath userdict /gotpagebbox known not and {
		/pagebbox [clippath pathbbox newpath] def
		roundpage currentdict /roundpagebbox known and {roundpagebbox} if
	} if
	pagebbox aload pop
	4 -1 roll exch 4 1 roll 4 copy
	landscape {4 2 roll} if
	sub /width exch def
	sub /height exch def
	add 2 div /xcenter exch def
	add 2 div /ycenter exch def
	userdict /gotpagebbox true put
} def

/addmetrics {
	/Symbol /S null Sdefs cf
	/Times-Roman /S1 StandardEncoding dup length array copy S1defs cf
} def

/pagesetup {
	/page exch def
	currentdict /pagedict known currentdict page known and {
		page load pagedict exch get cvx exec
	} if
} def

/decodingdefs [
	{counttomark 2 idiv {y moveto show} repeat}
	{neg /y exch def counttomark 2 idiv {y moveto show} repeat}
	{neg moveto {2 index stringwidth pop sub exch div 0 32 4 -1 roll widthshow} repeat}
	{neg moveto {spacewidth sub 0.0 32 4 -1 roll widthshow} repeat}
	{counttomark 2 idiv {y moveto show} repeat}
	{neg setfunnytext}
] def

/setdecoding {/t decodingdefs 3 -1 roll get bind def} bind def

/w {neg moveto show} bind def
/m {neg dup /y exch def moveto} bind def
/done {/lastpage where {pop lastpage} if} def

/f {
	dup /font exch def findfont exch
	dup /ptsize exch def scaling div dup /size exch def scalefont setfont
	linewidth ptsize mul scaling 10 mul div setlinewidth
	/spacewidth ( ) stringwidth pop def
} bind def

/changefont {
	/fontheight exch def
	/fontslant exch def
	currentfont [
		1 0
		fontheight ptsize div fontslant sin mul fontslant cos div
		fontheight ptsize div
		0 0
	] makefont setfont
} bind def

/sf {f} bind def

/cf {
	dup length 2 idiv
	/entries exch def
	/chtab exch def
	/newencoding exch def
	/newfont exch def

	findfont dup length 1 add dict
	/newdict exch def
	{1 index /FID ne {newdict 3 1 roll put}{pop pop} ifelse} forall

	newencoding type /arraytype eq {newdict /Encoding newencoding put} if

	newdict /Metrics entries dict put
	newdict /Metrics get
	begin
		chtab aload pop
		1 1 entries {pop def} for
		newfont newdict definefont pop
	end
} bind def

%
% A few arrays used to adjust reference points and character widths in some
% of the printer resident fonts. If square roots are too high try changing
% the lines describing /radical and /radicalex to,
%
%	/radical	[0 -75 550 0]
%	/radicalex	[-50 -75 500 0]
%
% Move braceleftbt a bit - default PostScript character is off a bit.
%

/Sdefs [
	/bracketlefttp		[201 500]
	/bracketleftbt		[201 500]
	/bracketrighttp		[-81 380]
	/bracketrightbt		[-83 380]
	/braceleftbt		[203 490]
	/bracketrightex		[220 -125 500 0]
	/radical		[0 0 550 0]
	/radicalex		[-50 0 500 0]
	/parenleftex		[-20 -170 0 0]
	/integral		[100 -50 500 0]
	/infinity		[10 -75 730 0]
] def

/S1defs [
	/underscore		[0 80 500 0]
	/endash			[7 90 650 0]
] def
%
% Tries to round clipping path dimensions, as stored in array pagebbox, so they
% match one of the known sizes in the papersizes array. Lower left coordinates
% are always set to 0.
%

/roundpagebbox {
    7 dict begin
	/papersizes [8.5 inch 11 inch 14 inch 17 inch] def

	/mappapersize {
		/val exch def
		/slop .5 inch def
		/diff slop def
		/j 0 def
		0 1 papersizes length 1 sub {
			/i exch def
			papersizes i get val sub abs
			dup diff le {/diff exch def /j i def} {pop} ifelse
		} for
		diff slop lt {papersizes j get} {val} ifelse
	} def

	pagebbox 0 0 put
	pagebbox 1 0 put
	pagebbox dup 2 get mappapersize 2 exch put
	pagebbox dup 3 get mappapersize 3 exch put
    end
} bind def

%%EndProlog
%%BeginSetup
mark
%
% Encoding vector and redefinition of findfont for the ISO Latin1 standard.
% The 18 characters missing from ROM based fonts on older printers are noted
% below.
%

/ISOLatin1Encoding [
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/space
	/exclam
	/quotedbl
	/numbersign
	/dollar
	/percent
	/ampersand
	/quoteright
	/parenleft
	/parenright
	/asterisk
	/plus
	/comma
	/minus
	/period
	/slash
	/zero
	/one
	/two
	/three
	/four
	/five
	/six
	/seven
	/eight
	/nine
	/colon
	/semicolon
	/less
	/equal
	/greater
	/question
	/at
	/A
	/B
	/C
	/D
	/E
	/F
	/G
	/H
	/I
	/J
	/K
	/L
	/M
	/N
	/O
	/P
	/Q
	/R
	/S
	/T
	/U
	/V
	/W
	/X
	/Y
	/Z
	/bracketleft
	/backslash
	/bracketright
	/asciicircum
	/underscore
	/quoteleft
	/a
	/b
	/c
	/d
	/e
	/f
	/g
	/h
	/i
	/j
	/k
	/l
	/m
	/n
	/o
	/p
	/q
	/r
	/s
	/t
	/u
	/v
	/w
	/x
	/y
	/z
	/braceleft
	/bar
	/braceright
	/asciitilde
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/dotlessi
	/grave
	/acute
	/circumflex
	/tilde
	/macron
	/breve
	/dotaccent
	/dieresis
	/.notdef
	/ring
	/cedilla
	/.notdef
	/hungarumlaut
	/ogonek
	/caron
	/space
	/exclamdown
	/cent
	/sterling
	/currency
	/yen
	/brokenbar		% missing
	/section
	/dieresis
	/copyright
	/ordfeminine
	/guillemotleft
	/logicalnot
	/hyphen
	/registered
	/macron
	/degree			% missing
	/plusminus		% missing
	/twosuperior		% missing
	/threesuperior		% missing
	/acute
	/mu			% missing
	/paragraph
	/periodcentered
	/cedilla
	/onesuperior		% missing
	/ordmasculine
	/guillemotright
	/onequarter		% missing
	/onehalf		% missing
	/threequarters		% missing
	/questiondown
	/Agrave
	/Aacute
	/Acircumflex
	/Atilde
	/Adieresis
	/Aring
	/AE
	/Ccedilla
	/Egrave
	/Eacute
	/Ecircumflex
	/Edieresis
	/Igrave
	/Iacute
	/Icircumflex
	/Idieresis
	/Eth			% missing
	/Ntilde
	/Ograve
	/Oacute
	/Ocircumflex
	/Otilde
	/Odieresis
	/multiply		% missing
	/Oslash
	/Ugrave
	/Uacute
	/Ucircumflex
	/Udieresis
	/Yacute			% missing
	/Thorn			% missing
	/germandbls
	/agrave
	/aacute
	/acircumflex
	/atilde
	/adieresis
	/aring
	/ae
	/ccedilla
	/egrave
	/eacute
	/ecircumflex
	/edieresis
	/igrave
	/iacute
	/icircumflex
	/idieresis
	/eth			% missing
	/ntilde
	/ograve
	/oacute
	/ocircumflex
	/otilde
	/odieresis
	/divide			% missing
	/oslash
	/ugrave
	/uacute
	/ucircumflex
	/udieresis
	/yacute			% missing
	/thorn			% missing
	/ydieresis
] def

/NewFontDirectory FontDirectory maxlength dict def

%
% Apparently no guarantee findfont is defined in systemdict so the obvious
%
%	systemdict /findfont get exec
%
% can generate an error. So far the only exception is a VT600 (version 48.0).
%

userdict /@RealFindfont known not {
	userdict begin
		/@RealFindfont systemdict begin /findfont load end def
	end
} if

/findfont {
	dup NewFontDirectory exch known not {
		dup
		%dup systemdict /findfont get exec	% not always in systemdict
		dup userdict /@RealFindfont get exec
		dup /Encoding get StandardEncoding eq {
			dup length dict begin
				{1 index /FID ne {def}{pop pop} ifelse} forall
				/Encoding ISOLatin1Encoding def
				currentdict
			end
			/DummyFontName exch definefont
		} if
		NewFontDirectory 3 1 roll put
	} if
	NewFontDirectory exch get
} bind def

setup
%%EndSetup
%%Page: 1 1
/saveobj save def
mark
1 pagesetup
12 /Times-Bold f
(Pnmtopng User) 2263 1230 w
(Manual) 3096 1230 w
10 /Times-Bold f
(pnmtopng) 720 1920 w
10 /Times-Roman f
(Updated: June 2002) 720 2076 w
(Table Of Contents) 720 2196 w
10 /Times-Bold f
(NAME) 720 2436 w
10 /Times-Roman f
(pnmtopng \255 convert a PNM image to PNG) 720 2592 w
10 /Times-Bold f
(SYNOPSIS) 720 2832 w
(pnmtopng) 720 2988 w
10 /Times-Roman f
([) 1303 2988 w
10 /Times-Bold f
(\255verbose) 1336 2988 w
10 /Times-Roman f
(]) 1696 2988 w
([) 1872 2988 w
10 /Times-Bold f
(\255downscale) 1905 2988 w
10 /Times-Roman f
(]) 2377 2988 w
([) 2553 2988 w
10 /Times-Bold f
(\255interlace) 2586 2988 w
10 /Times-Roman f
(]) 2990 2988 w
([) 3167 2988 w
10 /Times-Bold f
(\255alpha=) 3200 2988 w
10 /Times-Italic f
(file) 3530 2988 w
10 /Times-Roman f
(]) 3658 2988 w
([) 3835 2988 w
10 /Times-Bold f
(\255transparent=) 3868 2988 w
10 /Times-Roman f
([) 4463 2988 w
10 /Times-Bold f
(=) 4496 2988 w
10 /Times-Roman f
(]) 4553 2988 w
10 /Times-Italic f
(color) 4586 2988 w
10 /Times-Roman f
(]) 4797 2988 w
([) 4974 2988 w
10 /Times-Bold f
(\255) 5007 2988 w
(background=) 720 3108 w
10 /Times-Italic f
(color) 1295 3108 w
10 /Times-Roman f
(] [) 1506 3108 w
10 /Times-Bold f
(\255palette=) 1597 3108 w
10 /Times-Italic f
(palettefile) 1975 3108 w
10 /Times-Roman f
(] [) 2375 3108 w
10 /Times-Bold f
(\255gamma=) 2466 3108 w
10 /Times-Italic f
(value) 2872 3108 w
10 /Times-Roman f
(] [) 3088 3108 w
10 /Times-Bold f
(\255hist) 3179 3108 w
10 /Times-Roman f
(] [) 3368 3108 w
10 /Times-Bold f
(\255text=) 3459 3108 w
10 /Times-Italic f
(file) 3709 3108 w
10 /Times-Roman f
(] [) 3837 3108 w
10 /Times-Bold f
(\255ztxt=) 3928 3108 w
10 /Times-Italic f
(file) 4178 3108 w
10 /Times-Roman f
(]) 4306 3108 w
([) 720 3228 w
10 /Times-Bold f
(\255rgb=") 753 3228 w
10 /Times-Italic f
(wx) 1049 3228 w
(wy) 1188 3228 w
(rx) 1328 3228 w
(ry) 1440 3228 w
(gx) 1552 3228 w
(gy) 1675 3228 w
(bx) 1798 3228 w
(by) 1921 3228 w
10 /Times-Bold f
(") 2015 3228 w
10 /Times-Roman f
(]) 2071 3228 w
([) 2133 3228 w
10 /Times-Bold f
(\255size=") 2166 3228 w
10 /Times-Italic f
(x) 2467 3228 w
(y) 2540 3228 w
(unit) 2613 3228 w
10 /Times-Bold f
(") 2769 3228 w
10 /Times-Roman f
(]) 2825 3228 w
([) 2887 3228 w
10 /Times-Bold f
(\255modtime=") 2920 3228 w
10 /Times-Roman f
([) 3443 3228 w
10 /Times-Italic f
(yy) 3476 3228 w
10 /Times-Roman f
(]) 3564 3228 w
10 /Times-Italic f
(yy) 3597 3228 w
10 /Times-Bold f
(\255) 3685 3228 w
10 /Times-Italic f
(mm) 3718 3228 w
10 /Times-Bold f
(\255) 3862 3228 w
10 /Times-Italic f
(dd) 3895 3228 w
(hh) 4024 3228 w
10 /Times-Bold f
(:) 4124 3228 w
10 /Times-Italic f
(mm) 4157 3228 w
10 /Times-Bold f
(:) 4301 3228 w
10 /Times-Italic f
(ss) 4334 3228 w
10 /Times-Bold f
(") 4412 3228 w
10 /Times-Roman f
(]) 4468 3228 w
([) 4530 3228 w
10 /Times-Bold f
(\255nofilter) 4563 3228 w
10 /Times-Roman f
(]) 4912 3228 w
([) 4974 3228 w
10 /Times-Bold f
(\255) 5007 3228 w
(sub) 720 3348 w
10 /Times-Roman f
(] [) 871 3348 w
10 /Times-Bold f
(\255up) 962 3348 w
10 /Times-Roman f
(] [) 1107 3348 w
10 /Times-Bold f
(\255avg) 1198 3348 w
10 /Times-Roman f
(] [) 1381 3348 w
10 /Times-Bold f
(\255paeth) 1472 3348 w
10 /Times-Roman f
(] [) 1744 3348 w
10 /Times-Bold f
(\255compression=) 1835 3348 w
10 /Times-Italic f
(n) 2458 3348 w
10 /Times-Roman f
(] [) 2508 3348 w
10 /Times-Bold f
(\255comp) 2599 3348 w
10 /S f
(_) 2865 3348 w
10 /Times-Bold f
(mem) 2915 3348 w
10 /S f
(_) 3125 3348 w
10 /Times-Bold f
(level=) 3175 3348 w
10 /Times-Italic f
(n) 3426 3348 w
10 /Times-Roman f
(]) 3476 3348 w
([) 720 3468 w
10 /Times-Bold f
(\255comp) 753 3468 w
10 /S f
(_) 1019 3468 w
10 /Times-Bold f
(strategy=) 1069 3468 w
10 /Times-Roman f
({) 1469 3468 w
10 /Times-Bold f
(huffman) 1517 3468 w
10 /S f
(_) 1884 3468 w
10 /Times-Bold f
(only) 1934 3468 w
10 /S f
(\357) 2118 3468 w
10 /Times-Bold f
(filtered) 2167 3468 w
10 /Times-Roman f
(}]) 2477 3468 w
([) 2652 3468 w
10 /Times-Bold f
(\255comp) 2685 3468 w
10 /S f
(_) 2951 3468 w
10 /Times-Bold f
(method=deflated) 3001 3468 w
10 /Times-Roman f
(]) 3724 3468 w
([) 3851 3468 w
10 /Times-Bold f
(\255comp) 3884 3468 w
10 /S f
(_) 4150 3468 w
10 /Times-Bold f
(window) 4200 3468 w
10 /S f
(_) 4534 3468 w
10 /Times-Bold f
(bits=) 4584 3468 w
10 /Times-Italic f
(n) 4797 3468 w
10 /Times-Roman f
(]) 4847 3468 w
([) 4974 3468 w
10 /Times-Bold f
(\255) 5007 3468 w
(comp) 720 3588 w
10 /S f
(_) 953 3588 w
10 /Times-Bold f
(buffer) 1003 3588 w
10 /S f
(_) 1269 3588 w
10 /Times-Bold f
(size=) 1319 3588 w
10 /Times-Italic f
(n) 1531 3588 w
10 /Times-Roman f
(] [) 1581 3588 w
10 /Times-Bold f
(\255force) 1672 3588 w
10 /Times-Roman f
(] [) 1920 3588 w
10 /Times-Bold f
(\255libversion) 2011 3588 w
10 /Times-Roman f
(] [) 2467 3588 w
10 /Times-Italic f
(pnmfile) 2558 3588 w
10 /Times-Roman f
(] <?makeman .SH OPTION USAGE ?>) 2858 3588 w
(Obsolete options:) 720 3744 w
([) 720 3900 w
10 /Times-Bold f
(\255filter) 753 3900 w
10 /Times-Italic f
(n) 1021 3900 w
10 /Times-Roman f
(]) 1071 3900 w
(Options available only in older versions:) 720 4056 w
([) 720 4212 w
10 /Times-Bold f
(\255chroma) 753 4212 w
10 /Times-Italic f
(wx wy rx ry gx gy bx by) 1138 4212 w
10 /Times-Roman f
(] [) 2077 4212 w
10 /Times-Bold f
(\255phys) 2168 4212 w
10 /Times-Italic f
(x y unit) 2427 4212 w
10 /Times-Roman f
(]) 2721 4212 w
([) 720 4332 w
10 /Times-Bold f
(\255time) 753 4332 w
10 /Times-Roman f
([) 999 4332 w
10 /Times-Italic f
(yy) 1032 4332 w
10 /Times-Roman f
(]) 1120 4332 w
10 /Times-Italic f
(yy) 1153 4332 w
10 /Times-Bold f
(\255) 1241 4332 w
10 /Times-Italic f
(mm) 1274 4332 w
10 /Times-Bold f
(\255) 1418 4332 w
10 /Times-Italic f
(dd hh) 1451 4332 w
10 /Times-Bold f
(:) 1676 4332 w
10 /Times-Italic f
(mm) 1709 4332 w
10 /Times-Bold f
(:) 1853 4332 w
10 /Times-Italic f
(ss) 1886 4332 w
10 /Times-Roman f
(]) 1964 4332 w
(Minimum) 720 4488 w
(unique) 1162 4488 w
(abbreviation) 1475 4488 w
(of) 2015 4488 w
(option) 2140 4488 w
(is) 2438 4488 w
(acceptable.) 2547 4488 w
(You) 3059 4488 w
(may) 3273 4488 w
(use) 3487 4488 w
(double) 3662 4488 w
(hyphens) 3976 4488 w
(instead) 4351 4488 w
(of) 4676 4488 w
(single) 4801 4488 w
(hyphen) 720 4608 w
(to) 1042 4608 w
(denote) 1148 4608 w
(options.) 1442 4608 w
(You) 1815 4608 w
(may) 2015 4608 w
(use) 2215 4608 w
(white) 2376 4608 w
(space) 2626 4608 w
(in) 2875 4608 w
(place) 2981 4608 w
(of) 3219 4608 w
(the) 3330 4608 w
(equals) 3480 4608 w
(sign) 3763 4608 w
(to) 3958 4608 w
(separate) 4064 4608 w
(an) 4418 4608 w
(option) 4540 4608 w
(name) 4824 4608 w
(from its value.) 720 4728 w
10 /Times-Bold f
(DESCRIPTION) 720 4968 w
10 /Times-Roman f
(This program is part of Netpbm.) 720 5160 w
10 /Times-Bold f
(pnmtopng) 720 5316 w
10 /Times-Roman f
(reads a PNM image as input and produces a PNG image as output.) 1185 5316 w
(Color) 720 5472 w
(values) 976 5472 w
(in) 1259 5472 w
(PNG) 1365 5472 w
(files) 1593 5472 w
(are) 1793 5472 w
(either) 1942 5472 w
(eight) 2197 5472 w
(or) 2425 5472 w
(sixteen) 2536 5472 w
(bits) 2847 5472 w
(wide,) 3020 5472 w
(so) 3267 5472 w
10 /Times-Italic f
(pnmtopng) 3384 5472 w
10 /Times-Roman f
(will) 3812 5472 w
(automatically) 3996 5472 w
(scale) 4568 5472 w
(colors) 4796 5472 w
(to) 720 5592 w
(have) 832 5592 w
(a) 1054 5592 w
(maxval) 1132 5592 w
(of) 1460 5592 w
(255) 1577 5592 w
(or) 1761 5592 w
(65535.) 1878 5592 w
(Grayscale) 2212 5592 w
(files) 2643 5592 w
(will) 2848 5592 w
(be) 3037 5592 w
(produced) 3164 5592 w
(with) 3568 5592 w
(bit) 3779 5592 w
(depths) 3918 5592 w
(1,) 4212 5592 w
(2,) 4320 5592 w
(4,) 4428 5592 w
(8) 4536 5592 w
(or) 4619 5592 w
(16.) 4735 5592 w
(An) 4918 5592 w
(extra) 720 5712 w
10 /Times-Bold f
(pamdepth) 944 5712 w
10 /Times-Roman f
(step is not necessary.) 1403 5712 w
10 /Times-Bold f
(OPTIONS) 720 5952 w
(pnmtopng) 720 6144 w
10 /Times-Roman f
(changed) 1196 6144 w
(in) 1564 6144 w
(Netpbm) 1678 6144 w
(10.30) 2036 6144 w
(\(October) 2297 6144 w
(2005\)) 2688 6144 w
(to) 2958 6144 w
(use) 3073 6144 w
(the) 3243 6144 w
(standard) 3402 6144 w
(Netpbm) 3777 6144 w
(command) 4136 6144 w
(line) 4567 6144 w
(syntax.) 4754 6144 w
(Before) 720 6264 w
(that,) 1019 6264 w
(you) 1222 6264 w
(could) 1400 6264 w
(not) 1650 6264 w
(use) 1806 6264 w
(double) 1967 6264 w
(hyphens) 2267 6264 w
(to) 2628 6264 w
(denote) 2734 6264 w
(an) 3028 6264 w
(option) 3149 6264 w
(and) 3432 6264 w
(could) 3603 6264 w
(not) 3852 6264 w
(use) 4007 6264 w
(an) 4167 6264 w
(equal) 4288 6264 w
(sign) 4531 6264 w
(to) 4725 6264 w
(sepa\255) 4830 6264 w
(rate an option name from its value.) 720 6384 w
(And the options had to come before the non\255option program arguments.) 2165 6384 w
(Furthermore,) 720 6540 w
(the) 1278 6540 w
(options) 1434 6540 w
10 /Times-Bold f
(\255chroma) 1763 6540 w
10 /Times-Roman f
(,) 2123 6540 w
10 /Times-Bold f
(\255phys) 2182 6540 w
10 /Times-Roman f
(,) 2416 6540 w
(and) 2476 6540 w
10 /Times-Bold f
(\255time) 2655 6540 w
10 /Times-Roman f
(were) 2911 6540 w
(replaced) 3139 6540 w
(by) 3511 6540 w
10 /Times-Bold f
(\255rgb) 3646 6540 w
10 /Times-Roman f
(,) 3829 6540 w
10 /Times-Bold f
(size) 3889 6540 w
10 /Times-Roman f
(,) 4044 6540 w
(and) 4104 6540 w
10 /Times-Bold f
(\255modtime) 4283 6540 w
10 /Times-Roman f
(,) 4693 6540 w
(respec\255) 4753 6540 w
(tively.) 720 6660 w
(The) 1032 6660 w
(only) 1221 6660 w
(difference,) 1433 6660 w
(taking) 1895 6660 w
10 /Times-Bold f
(\255phys) 2179 6660 w
10 /Times-Roman f
(/) 2413 6660 w
10 /Times-Bold f
(\255size) 2441 6660 w
10 /Times-Roman f
(as) 2663 6660 w
(an) 2780 6660 w
(example,) 2908 6660 w
(is) 3304 6660 w
(that) 3404 6660 w
10 /Times-Bold f
(\255phys) 3587 6660 w
10 /Times-Roman f
(takes) 3854 6660 w
(multiple) 4092 6660 w
(program) 4459 6660 w
(argu\255) 4830 6660 w
(ments) 720 6780 w
(as) 987 6780 w
(the) 1098 6780 w
(option) 1249 6780 w
(argument,) 1534 6780 w
(whereas) 1965 6780 w
10 /Times-Bold f
(\255rgb) 2320 6780 w
10 /Times-Roman f
(takes) 2532 6780 w
(a) 2766 6780 w
(single) 2839 6780 w
(program) 3107 6780 w
(argument) 3474 6780 w
(which) 3880 6780 w
(is) 4153 6780 w
(composed) 4249 6780 w
(of) 4683 6780 w
(multi\255) 4795 6780 w
(ple words.) 720 6900 w
(E.g.) 1186 6900 w
(The old shell command) 1397 6900 w
10 /Courier f
(pnmtopng \255phys 800 800 0 input.pnm >output.png) 900 7080 w
10 /Times-Roman f
(is equivalent to the new shell command) 720 7296 w
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(\255 2 \255) 2797 480 w
10 /Courier f
(pnmtopng \255size "800 800 0" input.pnm >output.png) 900 900 w
10 /Times-Roman f
(If) 720 1116 w
(you're) 815 1116 w
(writing) 1104 1116 w
(a) 1422 1116 w
(program) 1495 1116 w
(that) 1862 1116 w
(needs) 2041 1116 w
(to) 2297 1116 w
(work) 2404 1116 w
(with) 2638 1116 w
(both) 2845 1116 w
(new) 3052 1116 w
(and) 3247 1116 w
(old) 3421 1116 w
10 /Times-Bold f
(pnmtopng) 3579 1116 w
10 /Times-Roman f
(,) 4019 1116 w
(have) 4074 1116 w
(it) 4292 1116 w
(first) 4378 1116 w
(try) 4569 1116 w
(with) 4710 1116 w
(the) 4918 1116 w
(new syntax, and if it fails with "unrecognized option," fall back to the old syntax.) 720 1236 w
10 /Times-Bold f
(\255verbose) 970 1392 w
10 /Times-Roman f
(Display the format of the output file.) 1330 1392 w
10 /Times-Bold f
(\255downscale) 970 1548 w
10 /Times-Roman f
(Enables) 1442 1548 w
(scaling) 1798 1548 w
(of) 2121 1548 w
(maxvalues) 2244 1548 w
(of) 2711 1548 w
(more) 2834 1548 w
(then) 3079 1548 w
(65535) 3292 1548 w
(to) 3583 1548 w
(16) 3702 1548 w
(bit.) 3843 1548 w
(Since) 4015 1548 w
(this) 4278 1548 w
(means) 4464 1548 w
(loss) 4760 1548 w
(of) 4957 1548 w
(image data, the step is not performed by default.) 1220 1668 w
10 /Times-Bold f
(\255interlace) 970 1824 w
10 /Times-Roman f
(Creates an interlaced PNG file \(Adam7\).) 1374 1824 w
10 /Times-Bold f
(\255alpha=) 970 1980 w
10 /Times-Italic f
(filename) 1300 1980 w
10 /Times-Roman f
(This) 1672 1980 w
(specifies) 1878 1980 w
(the) 2255 1980 w
(transparency) 2405 1980 w
(\(alpha) 2942 1980 w
(channel\)) 3219 1980 w
(of) 3590 1980 w
(the) 3702 1980 w
(image.) 3853 1980 w
(You) 4176 1980 w
(supply) 4377 1980 w
(the) 4673 1980 w
(alpha) 4824 1980 w
(channel) 1220 2100 w
(as) 1560 2100 w
(a) 1673 2100 w
(standard) 1747 2100 w
(PGM) 2115 2100 w
(alpha) 2362 2100 w
(mask) 2608 2100 w
(\(see) 2849 2100 w
(the) 3039 2100 w
(PGM) 3191 2100 w
(specification.) 3438 2100 w
10 /Times-Bold f
(pnmtopng) 4028 2100 w
10 /Times-Roman f
(does) 4498 2100 w
(not) 4711 2100 w
(nec\255) 4869 2100 w
(essarily) 1220 2220 w
(represents) 1558 2220 w
(the) 1995 2220 w
(transparency) 2150 2220 w
(information) 2692 2220 w
(as) 3197 2220 w
(an) 3313 2220 w
(alpha) 3440 2220 w
(channel) 3689 2220 w
(in) 4032 2220 w
(the) 4144 2220 w
(PNG) 4300 2220 w
(format.) 4534 2220 w
(If) 4884 2220 w
(it) 4984 2220 w
(can) 1220 2340 w
(represent) 1392 2340 w
(the) 1791 2340 w
(transparency) 1947 2340 w
(information) 2490 2340 w
(through) 2996 2340 w
(a) 3341 2340 w
(palette,) 3419 2340 w
(it) 3744 2340 w
(will) 3834 2340 w
(do) 4024 2340 w
(so) 4158 2340 w
(in) 4281 2340 w
(order) 4393 2340 w
(to) 4636 2340 w
(make) 4747 2340 w
(a) 4996 2340 w
(smaller) 1220 2460 w
(PNG) 1545 2460 w
(file.) 1776 2460 w
10 /Times-Bold f
(pnmtopng) 1990 2460 w
10 /Times-Roman f
(even) 2461 2460 w
(sorts) 2680 2460 w
(the) 2900 2460 w
(palette) 3053 2460 w
(so) 3350 2460 w
(it) 3470 2460 w
(can) 3557 2460 w
(omit) 3726 2460 w
(the) 3942 2460 w
(opaque) 4096 2460 w
(colors) 4416 2460 w
(from) 4692 2460 w
(the) 4918 2460 w
(transparency part of the palette and save space for the palette.) 1220 2580 w
10 /Times-Bold f
(\255transparent=) 970 2736 w
10 /Times-Italic f
(color) 1565 2736 w
10 /Times-Bold f
(pnmtopng) 1776 2736 w
10 /Times-Roman f
(marks the specified color as transparent in the PNG image.) 2241 2736 w
(Specify the color \() 970 2892 w
10 /Times-Italic f
(color) 1710 2892 w
10 /Times-Roman f
(\) as described for the argument) 1921 2892 w
(of) 3185 2892 w
(the) 3294 2892 w
10 /Times-Bold f
(ppm) 3442 2892 w
10 /S f
(_) 3637 2892 w
10 /Times-Bold f
(parsecolor\(\)) 3687 2892 w
10 /Times-Roman f
(library) 4228 2892 w
(routine.) 4520 2892 w
(E.g.) 4879 2892 w
10 /Times-Bold f
(red) 970 3012 w
10 /Times-Roman f
(or) 1146 3012 w
10 /Times-Bold f
(rgb:ff/00/0d) 1261 3012 w
10 /Times-Roman f
(.) 1772 3012 w
(If) 1854 3012 w
(the) 1952 3012 w
(color) 2106 3012 w
(you) 2343 3012 w
(specify) 2525 3012 w
(is) 2845 3012 w
(not) 2944 3012 w
(present) 3104 3012 w
(in) 3424 3012 w
(the) 3534 3012 w
(image,) 3688 3012 w
10 /Times-Bold f
(pnmtopng) 3989 3012 w
10 /Times-Roman f
(selects) 4460 3012 w
(instead) 4757 3012 w
(the) 970 3132 w
(color) 1118 3132 w
(in) 1349 3132 w
(the) 1453 3132 w
(image) 1601 3132 w
(that) 1871 3132 w
(is) 2047 3132 w
(closest) 2140 3132 w
(to) 2438 3132 w
(the) 2542 3132 w
(one) 2690 3132 w
(you) 2860 3132 w
(specify.) 3036 3132 w
(Closeness) 3400 3132 w
(is) 3826 3132 w
(measured) 3919 3132 w
(as) 4328 3132 w
(a) 4438 3132 w
(cartesian) 4509 3132 w
(dis\255) 4890 3132 w
(tance) 970 3252 w
(between) 1217 3252 w
(colors) 1586 3252 w
(in) 1867 3252 w
(RGB) 1982 3252 w
(space.) 2225 3252 w
(If) 2533 3252 w
(multiple) 2636 3252 w
(colors) 3007 3252 w
(are) 3288 3252 w
(equidistant,) 3446 3252 w
10 /Times-Bold f
(pnmtopng) 3947 3252 w
10 /Times-Roman f
(chooses) 4424 3252 w
(one) 4777 3252 w
(of) 4957 3252 w
(them arbitrarily.) 970 3372 w
(However, if you prefix your color specification with "=", e.g.) 970 3528 w
(\255transparent =red) 1470 3708 w
(only) 995 3924 w
(the) 1199 3924 w
(exact) 1347 3924 w
(color) 1584 3924 w
(you) 1816 3924 w
(specify) 1993 3924 w
(will) 2308 3924 w
(be) 2491 3924 w
(transparent.) 2612 3924 w
(If) 3132 3924 w
(that) 3225 3924 w
(color) 3402 3924 w
(does) 3634 3924 w
(not) 3844 3924 w
(appear) 3999 3924 w
(in) 4291 3924 w
(the) 4396 3924 w
(image,) 4545 3924 w
(there) 4841 3924 w
(will be no transparency.) 970 4044 w
10 /Times-Bold f
(pnmtopng) 1979 4044 w
10 /Times-Roman f
(issues an information message when this is the case.) 2444 4044 w
10 /Times-Bold f
(\255background=) 970 4200 w
10 /Times-Italic f
(color) 1578 4200 w
10 /Times-Roman f
(Causes) 1789 4200 w
10 /Times-Bold f
(pnmtopng) 2101 4200 w
10 /Times-Roman f
(to) 2570 4200 w
(create) 2677 4200 w
(a) 2943 4200 w
(background) 3016 4200 w
(color) 3516 4200 w
(chunk) 3750 4200 w
(in) 4023 4200 w
(the) 4130 4200 w
(PNG) 4281 4200 w
(output) 4510 4200 w
(which) 4796 4200 w
(can) 1220 4320 w
(be) 1391 4320 w
(used) 1518 4320 w
(for) 1734 4320 w
(subsequent) 1883 4320 w
(alpha) 2360 4320 w
(channel) 2609 4320 w
(or) 2952 4320 w
(transparent) 3067 4320 w
(color) 3542 4320 w
(conversions.) 3779 4320 w
(Specify) 4338 4320 w
10 /Times-Italic f
(color) 4675 4320 w
10 /Times-Roman f
(the) 4918 4320 w
(same as for) 1220 4440 w
10 /Times-Bold f
(\255transparent) 1699 4440 w
10 /Times-Roman f
(.) 2237 4440 w
10 /Times-Bold f
(\255palette=) 970 4596 w
10 /Times-Italic f
(palettefile) 1348 4596 w
10 /Times-Roman f
(This) 1748 4596 w
(option) 1960 4596 w
(specifies) 2250 4596 w
(a) 2633 4596 w
(palette) 2711 4596 w
(to) 3011 4596 w
(use) 3123 4596 w
(in) 3290 4596 w
(the) 3402 4596 w
(PNG.) 3558 4596 w
(It) 3842 4596 w
(forces) 3937 4596 w
10 /Times-Bold f
(pnmtopng) 4215 4596 w
10 /Times-Roman f
(to) 4690 4596 w
(create) 4803 4596 w
(the) 1220 4716 w
(paletted) 1384 4716 w
(\(colormapped\)) 1742 4716 w
(variety) 2371 4716 w
(of) 2689 4716 w
(PNG) 2813 4716 w
(\255\255) 3054 4716 w
(if) 3161 4716 w
(that) 3263 4716 w
(isn't) 3454 4716 w
(possible,) 3673 4716 w
10 /Times-Bold f
(pnmtopng) 4067 4716 w
10 /Times-Roman f
(fails.) 4548 4716 w
(If) 4811 4716 w
(the) 4918 4716 w
(palette) 1220 4836 w
(you) 1526 4836 w
(specify) 1716 4836 w
(doesn't) 2044 4836 w
(contain) 2378 4836 w
(exactly) 2712 4836 w
(the) 3040 4836 w
(colors) 3202 4836 w
(in) 3486 4836 w
(the) 3604 4836 w
(image,) 3766 4836 w
10 /Times-Bold f
(pnmtopng) 4075 4836 w
10 /Times-Roman f
(fails.) 4555 4836 w
(Since) 4818 4836 w
10 /Times-Bold f
(pnmtopng) 1220 4956 w
10 /Times-Roman f
(will) 1692 4956 w
(automatically) 1880 4956 w
(generate) 2456 4956 w
(a) 2825 4956 w
(paletted) 2901 4956 w
(PNG,) 3249 4956 w
(with) 3506 4956 w
(a) 3716 4956 w
(correct) 3792 4956 w
(palette,) 4100 4956 w
(when) 4422 4956 w
(appropri\255) 4669 4956 w
(ate,) 1220 5076 w
(the) 1390 5076 w
(only) 1541 5076 w
(reason) 1748 5076 w
(you) 2037 5076 w
(would) 2216 5076 w
(specify) 2495 5076 w
(the) 2812 5076 w
10 /Times-Bold f
(\255palette) 2963 5076 w
10 /Times-Roman f
(option) 3313 5076 w
(is) 3598 5076 w
(if) 3695 5076 w
(you) 3786 5076 w
(care) 3966 5076 w
(in) 4161 5076 w
(what) 4269 5076 w
(order) 4493 5076 w
(the) 4733 5076 w
(col\255) 4885 5076 w
(ors) 1220 5196 w
(appear) 1369 5196 w
(in) 1661 5196 w
(the) 1766 5196 w
(palette.) 1915 5196 w
(The) 2258 5196 w
(PNG) 2439 5196 w
(palette) 2665 5196 w
(has) 2957 5196 w
(colors) 3116 5196 w
(in) 3386 5196 w
(the) 3490 5196 w
(same) 3638 5196 w
(order) 3869 5196 w
(as) 4105 5196 w
(the) 4214 5196 w
(palette) 4362 5196 w
(you) 4654 5196 w
(spec\255) 4830 5196 w
(ify.) 1220 5316 w
(You specify the palette by naming a PPM file that has one pixel for each color in the palette.) 970 5472 w
(Alternatively,) 970 5628 w
(consider) 1557 5628 w
(the) 1931 5628 w
(case) 2089 5628 w
(that) 2296 5628 w
(have) 2482 5628 w
(a) 2706 5628 w
(palette) 2786 5628 w
(and) 3088 5628 w
(you) 3268 5628 w
(want) 3454 5628 w
(to) 3684 5628 w
(make) 3798 5628 w
(sure) 4050 5628 w
(your) 4252 5628 w
(PNG) 4471 5628 w
(contains) 4707 5628 w
(only) 970 5748 w
(colors) 1176 5748 w
(from) 1448 5748 w
(the) 1670 5748 w
(palette,) 1820 5748 w
(approximating) 2139 5748 w
(if) 2750 5748 w
(necessary.) 2839 5748 w
(You) 3304 5748 w
(don't) 3504 5748 w
(care) 3743 5748 w
(what) 3936 5748 w
(indexes) 4158 5748 w
(the) 4491 5748 w
(PNG) 4641 5748 w
(uses) 4868 5748 w
(internally) 970 5868 w
(for) 1390 5868 w
(the) 1544 5868 w
(colors) 1704 5868 w
(\(i.e.) 1986 5868 w
(the) 2179 5868 w
(order) 2339 5868 w
(of) 2587 5868 w
(the) 2708 5868 w
(PNG) 2868 5868 w
(palette\).) 3106 5868 w
(In) 3493 5868 w
(this) 3614 5868 w
(case,) 3797 5868 w
(you) 4031 5868 w
(don't) 4219 5868 w
(need) 4468 5868 w
10 /Times-Bold f
(\255palette) 4694 5868 w
10 /Times-Roman f
(.) 5015 5868 w
(Pass) 970 5988 w
(the) 1176 5988 w
(Netpbm) 1326 5988 w
(input) 1676 5988 w
(image) 1910 5988 w
(and) 2182 5988 w
(your) 2354 5988 w
(palette) 2565 5988 w
(PPM) 2859 5988 w
(through) 3088 5988 w
10 /Times-Bold f
(pnmremap) 3426 5988 w
10 /Times-Roman f
(.) 3898 5988 w
(Though) 3975 5988 w
(you) 4313 5988 w
(might) 4490 5988 w
(think) 4751 5988 w
(it) 4984 5988 w
(would, using) 970 6108 w
10 /Times-Bold f
(\255palette) 1512 6108 w
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(in this case wouldn't even save) 1858 6108 w
10 /Times-Bold f
(pnmtopng) 3128 6108 w
10 /Times-Roman f
(any work.) 3593 6108 w
10 /Times-Bold f
(\255gamma=) 970 6264 w
10 /Times-Italic f
(value) 1376 6264 w
10 /Times-Roman f
(Causes) 1592 6264 w
10 /Times-Bold f
(pnmtopng) 1900 6264 w
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(to create a gAMA chunk.) 2365 6264 w
(This information helps describe) 3426 6264 w
(how) 4720 6264 w
(the) 4918 6264 w
(color) 1220 6384 w
(values) 1460 6384 w
(in) 1750 6384 w
(the) 1863 6384 w
(PNG) 2019 6384 w
(must) 2253 6384 w
(be) 2482 6384 w
(interpreted.) 2610 6384 w
(Without) 3126 6384 w
(the) 3488 6384 w
(gAMA) 3644 6384 w
(chunk,) 3961 6384 w
(whatever) 4264 6384 w
(interprets) 4663 6384 w
(the) 1220 6504 w
(PNG) 1381 6504 w
(must) 1620 6504 w
(get) 1855 6504 w
(this) 2017 6504 w
(information) 2202 6504 w
(separately) 2714 6504 w
(\(or) 3158 6504 w
(just) 3314 6504 w
(assume) 3499 6504 w
(something) 3833 6504 w
(standard\).) 4290 6504 w
(If) 4751 6504 w
(your) 4857 6504 w
(input) 1220 6624 w
(is) 1460 6624 w
(a) 1561 6624 w
(true) 1639 6624 w
(PPM) 1828 6624 w
(or) 2063 6624 w
(PGM) 2180 6624 w
(image,) 2431 6624 w
(you) 2734 6624 w
(should) 2918 6624 w
(specify) 3219 6624 w
10 /Times-Bold f
(\255gamma) 3541 6624 w
(.45) 3924 6624 w
10 /Times-Roman f
(.) 4049 6624 w
(But) 4133 6624 w
(sometimes) 4312 6624 w
(people) 4774 6624 w
(generate) 1220 6744 w
(images) 1591 6744 w
(which) 1908 6744 w
(are) 2186 6744 w
(ostensibly) 2341 6744 w
(PPM) 2781 6744 w
(except) 3016 6744 w
(the) 3310 6744 w
(image) 3466 6744 w
(uses) 3744 6744 w
(a) 3950 6744 w
(different) 4029 6744 w
(gamma) 4407 6744 w
(transfer) 4736 6744 w
(function) 1220 6864 w
(than) 1583 6864 w
(the) 1785 6864 w
(one) 1937 6864 w
(specified) 2111 6864 w
(for) 2501 6864 w
(PPM.) 2646 6864 w
(A) 2926 6864 w
(common) 3027 6864 w
(case) 3406 6864 w
(of) 3606 6864 w
(this) 3718 6864 w
(is) 3892 6864 w
(when) 3988 6864 w
(the) 4233 6864 w
(image) 4384 6864 w
(is) 4657 6864 w
(created) 4753 6864 w
(by) 1220 6984 w
(simple) 1358 6984 w
(hardware) 1663 6984 w
(that) 2071 6984 w
(doesn't) 2259 6984 w
(have) 2591 6984 w
(digital) 2817 6984 w
(computational) 3111 6984 w
(ability.) 3721 6984 w
(Also,) 4065 6984 w
(some) 4318 6984 w
(simple) 4568 6984 w
(pro\255) 4874 6984 w
(grams that generate images from scratch do it with a gamma transfer in which the gamma value) 1220 7104 w
(is 1.0.) 1220 7224 w
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(\255 3 \255) 2797 480 w
10 /Times-Bold f
(\255hist) 970 840 w
10 /Times-Roman f
(Use) 1220 840 w
(this) 1401 840 w
(parameter) 1572 840 w
(to) 1996 840 w
(create) 2100 840 w
(a) 2363 840 w
(chunk) 2433 840 w
(that) 2703 840 w
(specifies) 2879 840 w
(the) 3255 840 w
(frequency) 3404 840 w
(\(or) 3829 840 w
(histogram\)) 3972 840 w
(of) 4432 840 w
(the) 4542 840 w
(colors) 4691 840 w
(in) 4962 840 w
(the image.) 1220 960 w
10 /Times-Bold f
(\255rgb=) 970 1116 w
10 /Times-Italic f
(chroma) 1210 1116 w
10 /S f
(_) 1515 1116 w
10 /Times-Italic f
(list) 1565 1116 w
10 /Times-Roman f
(This) 1688 1116 w
(option) 1894 1116 w
(specifies) 2178 1116 w
(how) 2555 1116 w
(red,) 2755 1116 w
(green,) 2935 1116 w
(and) 3209 1116 w
(blue) 3381 1116 w
(component) 3581 1116 w
(values) 4054 1116 w
(of) 4338 1116 w
(a) 4450 1116 w
(pixel) 4523 1116 w
(specify) 4752 1116 w
(a) 1220 1236 w
(particular) 1291 1236 w
(color,) 1700 1236 w
(by) 1957 1236 w
(telling) 2084 1236 w
(the) 2367 1236 w
(chromaticities) 2516 1236 w
(of) 3109 1236 w
(those) 3219 1236 w
(3) 3457 1236 w
(primary) 3534 1236 w
(illuminants) 3877 1236 w
(and) 4355 1236 w
(of) 4526 1236 w
(white) 4636 1236 w
(\(i.e.) 4885 1236 w
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10 /Times-Italic f
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(your) 4101 2496 w
(image) 4334 2496 w
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10 /Times-Italic f
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10 /Times-Roman f
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10 /Times-Roman f
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10 /Times-Roman f
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(the) 4264 2772 w
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(example,) 1615 2892 w
10 /Times-Bold f
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(you) 1250 3840 w
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10 /Times-Bold f
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10 /Times-Roman f
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10 /Times-Bold f
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10 /Times-Roman f
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(Netpbm) 1953 4116 w
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(\(October) 2560 4116 w
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10 /Times-Italic f
(file) 4669 4392 w
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(name of a file that contains your text comments.) 1220 4512 w
(Here is an example of a comment file:) 970 4668 w
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10 /Times-Bold f
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10 /Times-Italic f
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10 /Times-Roman f
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10 /Times-Bold f
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10 /Times-Roman f
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10 /Times-Roman f
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10 /Times-Roman f
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10 /Times-Roman f
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10 /Times-Bold f
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(9) 3775 5256 w
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(memory) 4447 5256 w
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(options) 2967 5688 w
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(the) 3506 5688 w
(compression) 3675 5688 w
(strategy) 4227 5688 w
(of) 4590 5688 w
(the) 4720 5688 w
(zlib) 4890 5688 w
(compression.) 1220 5808 w
(See Zlib documentation for information on what these strategies are.) 1800 5808 w
(This option was new in Netpbm 10.30 \(October 2005\).) 970 5964 w
10 /Times-Bold f
(\255comp) 970 6120 w
10 /S f
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10 /Times-Bold f
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(option) 2214 6120 w
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(nothing.) 2709 6120 w
(It) 3093 6120 w
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(mathematical) 3620 6120 w
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(compatibility.) 1952 6240 w
(It) 2580 6240 w
(theoretically) 2685 6240 w
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(the) 3538 6240 w
(compression) 3704 6240 w
(method) 4253 6240 w
(of) 4597 6240 w
(the) 4724 6240 w
(zlib) 4890 6240 w
(compression, but the Z library knows only one method today, so there's nothing to choose.) 1220 6360 w
(This option was new in Netpbm 10.30 \(October 2005\).) 970 6516 w
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(\255comp) 970 6672 w
10 /S f
(_) 1236 6672 w
10 /Times-Bold f
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10 /S f
(_) 1620 6672 w
10 /Times-Bold f
(bits=) 1670 6672 w
10 /Times-Italic f
(N) 1883 6672 w
10 /Times-Roman f
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(option) 2169 6672 w
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(how) 2675 6672 w
(big) 2889 6672 w
(a) 3059 6672 w
(window) 3145 6672 w
(the) 3509 6672 w
(zlib) 3673 6672 w
(compression) 3865 6672 w
(algorithm) 4412 6672 w
(uses.) 4843 6672 w
(The) 1220 6792 w
(value) 1414 6792 w
(is) 1669 6792 w
(the) 1775 6792 w
(base) 1936 6792 w
(2) 2151 6792 w
(logarithm) 2239 6792 w
(of) 2666 6792 w
(the) 2787 6792 w
(window) 2947 6792 w
(size) 3307 6792 w
(in) 3500 6792 w
(bytes,) 3616 6792 w
(so) 3890 6792 w
(8) 4017 6792 w
(means) 4105 6792 w
(256) 4398 6792 w
(bytes.) 4586 6792 w
(The) 4885 6792 w
(value must be from 8 to 15 \(i.e. 256 bytes to 32K\).) 1220 6912 w
(See Zlib documentation for details on what this window size is.) 970 7068 w
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10 /S f
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10 /Times-Bold f
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10 /S f
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10 /Times-Bold f
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10 /Times-Roman f
(=) 1757 840 w
10 /Times-Italic f
(N) 1813 840 w
10 /Times-Roman f
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(option) 2089 840 w
(determines) 2376 840 w
(in) 2845 840 w
(what) 2954 840 w
(size) 3179 840 w
(pieces) 3365 840 w
10 /Times-Bold f
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10 /Times-Roman f
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(the) 4333 840 w
(zlib) 4487 840 w
(compres\255) 4669 840 w
(sion.) 1220 960 w
(One) 1469 960 w
(compressed) 1667 960 w
(piece) 2170 960 w
(goes) 2412 960 w
(in) 2627 960 w
(each) 2737 960 w
(IDAT) 2951 960 w
(chunk) 3221 960 w
(in) 3497 960 w
(the) 3607 960 w
(PNG.) 3761 960 w
(So) 4043 960 w
(the) 4181 960 w
(bigger) 4335 960 w
(this) 4622 960 w
(value,) 4799 960 w
(the) 1220 1080 w
(fewer) 1388 1080 w
(IDAT) 1660 1080 w
(chunks) 1944 1080 w
(your) 2273 1080 w
(PNG) 2502 1080 w
(will) 2748 1080 w
(have.) 2950 1080 w
(Theoretically,) 3234 1080 w
(this) 3837 1080 w
(makes) 4028 1080 w
(the) 4330 1080 w
(PNG) 4499 1080 w
(smaller) 4746 1080 w
(because) 1220 1200 w
(1\)) 1577 1200 w
(you) 1701 1200 w
(have) 1892 1200 w
(less) 2121 1200 w
(per\255IDAT\255chunk) 2312 1200 w
(overhead,) 3028 1200 w
(and) 3459 1200 w
(2\)) 3644 1200 w
(the) 3768 1200 w
(compression) 3931 1200 w
(algorithm) 4477 1200 w
(has) 4907 1200 w
(more) 1220 1320 w
(data) 1460 1320 w
(to) 1661 1320 w
(work) 1774 1320 w
(with.) 2014 1320 w
(But) 2277 1320 w
(in) 2457 1320 w
(reality,) 2570 1320 w
(the) 2885 1320 w
(difference) 3042 1320 w
(will) 3480 1320 w
(probably) 3671 1320 w
(not) 4062 1320 w
(be) 4226 1320 w
(noticeable) 4356 1320 w
(above) 4802 1320 w
(about 8K, which is the default.) 1220 1440 w
(The value) 970 1596 w
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10 /Times-Roman f
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(This option was new in Netpbm 10.30 \(October 2005\).) 970 1752 w
10 /Times-Bold f
(\255force) 970 1908 w
10 /Times-Roman f
(When) 1220 1908 w
(you) 1496 1908 w
(specify) 1684 1908 w
(this,) 2010 1908 w
10 /Times-Bold f
(pnmtopng) 2219 1908 w
10 /Times-Roman f
(limits) 2698 1908 w
(its) 2966 1908 w
(optimizations.) 3100 1908 w
(The) 3734 1908 w
(resulting) 3928 1908 w
(PNG) 4317 1908 w
(output) 4556 1908 w
(is) 4851 1908 w
(as) 4957 1908 w
(similar) 1220 2028 w
(to) 1526 2028 w
(the) 1632 2028 w
(Netpbm) 1782 2028 w
(input) 2131 2028 w
(as) 2364 2028 w
(possible.) 2474 2028 w
(For) 2879 2028 w
(example,) 3045 2028 w
(the) 3435 2028 w
(PNG) 3584 2028 w
(output) 3811 2028 w
(will) 4094 2028 w
(not) 4277 2028 w
(be) 4432 2028 w
(paletted) 4553 2028 w
(and) 4896 2028 w
(the) 1220 2148 w
(alpha) 1374 2148 w
(channel) 1622 2148 w
(will) 1964 2148 w
(be) 2152 2148 w
(represented) 2278 2148 w
(as) 2769 2148 w
(a) 2884 2148 w
(full) 2960 2148 w
(alpha) 3131 2148 w
(channel) 3379 2148 w
(even) 3721 2148 w
(if) 3941 2148 w
(the) 4034 2148 w
(information) 4188 2148 w
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(be) 4946 2148 w
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10 /Times-Roman f
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(option) 1631 2424 w
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10 /Times-Bold f
(pnmtopng) 2201 2424 w
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(to) 2668 2424 w
(display) 2774 2424 w
(version) 3091 2424 w
(information) 3413 2424 w
(about) 3913 2424 w
(itself) 4163 2424 w
(and) 4391 2424 w
(the) 4563 2424 w
(libraries) 4713 2424 w
(it) 1220 2544 w
(uses,) 1311 2544 w
(in) 1542 2544 w
(addition) 1654 2544 w
(to) 2016 2544 w
(all) 2128 2544 w
(its) 2262 2544 w
(normal) 2391 2544 w
(function.) 2708 2544 w
(Do) 3125 2544 w
(not) 3281 2544 w
(confuse) 3443 2544 w
(this) 3787 2544 w
(with) 3966 2544 w
(the) 4178 2544 w
(Netpbm) 4334 2544 w
(common) 4690 2544 w
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10 /Times-Bold f
(\255version) 1512 2664 w
10 /Times-Roman f
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(causes) 2197 2664 w
(the) 2493 2664 w
(program) 2651 2664 w
(to) 3025 2664 w
(display) 3139 2664 w
(version) 3464 2664 w
(information) 3794 2664 w
(about) 4302 2664 w
(the) 4560 2664 w
(Netpbm) 4718 2664 w
(library and do nothing else.) 1220 2784 w
(You) 970 2940 w
(can't) 1171 2940 w
(really) 1399 2940 w
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(this) 1817 2940 w
(option) 1991 2940 w
(in) 2276 2940 w
(a) 2383 2940 w
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10 /Times-Bold f
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(know) 4354 2940 w
(which) 4606 2940 w
(ver\255) 4880 2940 w
(sion) 970 3060 w
(it) 1164 3060 w
(is.) 1247 3060 w
(Its) 1391 3060 w
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(too) 2397 3060 w
(much) 2552 3060 w
(over) 2800 3060 w
(the) 3003 3060 w
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10 /Times-Bold f
(pnmtopng) 3564 3060 w
10 /Times-Roman f
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(The) 4080 3060 w
(option) 4261 3060 w
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10 /Times-Roman f
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(Copyright \(C\) 1995\2551997 by Alexander Lehmann and Willem van Schaik.) 720 4128 w
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