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- % Copyright (C) 1994, 2000 Aladdin Enterprises. All rights reserved.
- %
- % This software is licensed to a single customer by Artifex Software Inc.
- % under the terms of a specific OEM agreement.
-
- % $RCSfile: pdf_font.ps,v $ $Revision: 1.14 $
- % pdf_font.ps
- % PDF font operations.
-
- /.setlanguagelevel where { pop 2 .setlanguagelevel } if
- .currentglobal true .setglobal
- /pdfdict where { pop } { /pdfdict 100 dict def } ifelse
- GS_PDF_ProcSet begin
- pdfdict begin
-
- % We cache the PostScript font in an additional element of the
- % font resource dictionary, called PSFont.
-
- % ---------------- Encodings ---------------- %
-
- % Apply a list of differences to an Encoding.
- % Note that the differences may cause the array to grow.
- /updateencoding { % <encoding> <differences> updateencoding <enc'>
- % Calculate the length of the result.
- exch 0 2 index {
- dup type /nametype ne { exch pop } { pop 1 add } ifelse
- } forall
- 1 index length .max array dup 0 4 -1 roll putinterval
- exch 0 exch {
- % Stack: enc' code element
- dup type /nametype ne
- { exch pop }
- { 3 copy put pop 1 add }
- ifelse
- } forall pop
- } bdef
-
- % Get the Encoding for a font.
- /getencoding % <base-encoding> <font-resource> getencoding <enc>
- { /Encoding knownoget
- { dup type /nametype eq
- {
- % The published PDF specification says the Encoding name
- % "must be" one of the 3 predefined Encodings, implying
- % that an error should occur if it isn't. However, Acrobat
- % Reader simply ignores unknown names, and since there are
- % some buggy applications that rely on this, we do the same.
-
- dup dup dup /MacRomanEncoding eq
- exch /MacExpertEncoding eq or
- exch /WinAnsiEncoding eq or
- { exch pop findencoding
- }
- { pop
- }
- ifelse
- }
- { dup /BaseEncoding knownoget
- { findencoding 3 -1 roll pop exch
- }
- if
- /Differences knownoget { updateencoding } if
- }
- ifelse
- }
- if
- } bdef
-
- % Rename a font with a generated name.
- /renamefont { % <fontdict> renamefont <font'>
- dup /FontName 2 copy get genfontname dup 5 1 roll put definefont
- } bind def
-
- % Adjust a font according to the Encoding and Widths in the font resource.
- /adjustfont { % <font-resource> <font> adjustfont <font'>
- getfontencoding
- getfontmetrics 4 -1 roll pop .updatefont { renamefont } if
- } bind def
-
- % Get the (possibly modified) encoding of a font.
- /getfontencoding { % <font-resource> <font> getfontencoding
- % <font-resource> <font> <Encoding|null>
- 1 index /Encoding known {
- dup /Encoding .knownget { 2 index getencoding } { null } ifelse
- } {
- null
- } ifelse
- } bdef
-
- % Get the metrics of a font, if specified.
- /getfontmetrics { % <font-resource> <font> <Encoding|null> getfontmetrics
- % <font-resource> <font> <Encoding|null>
- % <Metrics|null>
- 2 index /Widths known {
- dup null eq { pop dup /Encoding get } if
- 4 dict begin
- /Encoding exch def
- /Metrics Encoding length dict def
- exch
- dup /Widths oget /Widths exch def
- % Stack: font font-res
- % Note that widths are always based on a 1000-unit
- % character space, but the FontMatrix may specify
- % some other scale factor. Compensate for this here,
- % by scaling the Widths if necessary.
- 0.001 2 index /FontMatrix get 0 get div
- % Stack: font font-res mscale
- 1 index /FirstChar oget dup 1 4 index /LastChar oget
- { % Stack: font font-res mscale first-char index
- Encoding 1 index get
- Widths 2 index 4 index sub oget
- % Stack: font font-res mscale first-char index charname width
- 4 index mul
- % There is a hack here to deal with encodings where the
- % same character appears more than once, because the Metrics
- % dictionary works by character name, not by character code.
- % Because of this, we can't deal with Width vectors that
- % specify different widths for the same character name
- % appearing multiple times in the Encoding.
- Metrics 2 index .knownget not { 0 } if 0 ne {
- pop pop
- } {
- % Work around a bug in pdfTeX, which can generate Encoding
- % vectors containing nulls.
- 1 index null ne {
- Metrics 3 1 roll put
- } {
- pop pop
- } ifelse
- }
- ifelse pop
- }
- for pop
- % Now fill in the MissingWidth for any encoded characters
- % that aren't in Metrics already. Note that built-in
- % fonts may have Widths/FirstChar/LastChar but no
- % FontDescriptor, so we must check for this.
- % Stack: font font-res mscale
- 1 index /FontDescriptor knownoget {
- Metrics exch
- /MissingWidth knownoget { 2 index mul } { 0 } ifelse exch
- Encoding {
- % Stack: font font-res mscale missing-width metrics charname
- % Work around the abovementioned pdfTeX bug.
- dup null ne {
- 2 copy known not { 2 copy 4 index put } if pop
- } {
- pop
- } ifelse
- } forall pop pop pop
- } {
- pop
- } ifelse
- exch Encoding Metrics end
- } {
- null
- } ifelse
- } bdef
-
- % ---------------- Descriptors ---------------- %
-
- % Partial descriptors for the 14 built-in fonts. Note that
- % from PDF 1.1 to PDF 1.2, the meaning of the Flag 6 in the FontDescriptor
- % object has undergone a subtle change in its meaning which has serious
- % consequences for searching with Acrobat:
- % In PDF 1.1, the flag meant: Font has StandardEncoding
- % In PDF 1.2, the flag means: Font has (subset of) StandardRomanCharacterSet
- /standardfontdescriptors mark
- /Courier mark /Flags 16#23 .dicttomark
- /Courier-Oblique 1 index
- /Courier-Bold 1 index
- /Courier-BoldOblique 1 index
- /Helvetica mark /Flags 16#20 .dicttomark
- /Helvetica-Oblique 1 index
- /Helvetica-Bold 1 index
- /Helvetica-BoldOblique 1 index
- /Times-Roman mark /Flags 16#22 .dicttomark
- /Times-Bold 1 index
- /Times-Italic mark /Flags 16#62 .dicttomark
- /Times-BoldItalic 1 index
- /Symbol mark /Flags 16#4 .dicttomark
- /ZapfDingbats 1 index
- .dicttomark readonly def
-
- % ---------------- Utilities ---------------- %
-
- % Fabricate a font name by adding ?'s on the end.
- /genfontname % <name> genfontname <name>
- { dup length string cvs
- { (?) concatstrings
- dup cvn FontDirectory exch known not { cvn exit } if
- }
- loop
- } bdef
-
- % Find a font, and adjust its encoding if necessary.
- /.pdfdfndict mark
- /defaultfontname /Helvetica
- .dicttomark readonly def
- /pdffindfont { % <font-resource> <fontname> pdffindfont <font>
- % If the font isn't available, synthesize one based on
- % its descriptor.
- dup /Font resourcestatus {
- pop pop findfont
- } {
- 1 index /FontDescriptor knownoget {
- % Stack: font-res fontname fontdesc
- dup /Flags oget
- dup 16#40 and -6 bitshift % 1, oblique/italic
- 1 index 16#40000 and -17 bitshift add % 2, bold
- exch 16#2 and 2 bitshift add % 8, serif
- % We should look at the fixed flag, too.
- % Stack: font-res fontname fontdesc properties
- 1 index /FontName oget exch
- % Analyzes font name and extract "Narrow" property
- % which is not described by the FontDescriptor Flags.
- 0 2 index .fontnameproperties 4 and or
- % Rebind the default font name to Helvetica so that
- % fonts with no properties are handled correctly.
- //.pdfdfndict begin .substitutefontname end
- % Stack: font-res fontname fontdesc substname|null
- Fontmap 1 index known not {
- % No available good substitution, use the standard one.
- pop 1 index .substitutefont
- } if
- QUIET not {
- (Substituting font ) print dup =only
- ( for ) print 2 index =only (.) = flush
- } if
- 3 -1 roll pop findfont
- % Stack: font-res fontdesc font
- % If this is a small-caps font, replace the CharString
- % entries for a..z.
- exch /Flags oget 16#20000 and 0 ne {
- true .copyfontdict
- dup /CharStrings 2 copy get dup length dict .copydict
- 4 index /FirstChar get 97 .max
- 5 index /LastChar get 122 .min 1 exch {
- % Stack: font-res font' font' /CharStrings charstrings code
- % Note that this only remaps a-z, not accented characters.
- 5 index /Widths oget 1 index 7 index /FirstChar get sub oget
- 1 string dup 0 5 -1 roll put
- % Stack: font-res font' font' /CharStrings charstrings code
- % width (x)
- 2 index exch dup cvn exch
- dup 0 2 copy get 32 sub put 4 -1 roll {
- % Stack: operand (X) width
- 0 setcharwidth exch pop
- currentfont /FontMatrix get matrix invertmatrix concat
- 0.7 dup scale 0 0 moveto show
- } /exec cvx 4 packedarray cvx put
- } for put
- renamefont
- } if
- } {
- % No descriptor available, use the default algorithm.
- findfont
- } ifelse
- } ifelse adjustfont
- } bdef
-
- % ---------------- Type 1 fonts ---------------- %
-
- /buildType1 % <Type1-font-resource> buildType1 <font>
- { dup /BaseFont get pdffindfont
- } bdef
-
- % The state dictionary for the embedded Type 1 font reading procedure
- % has the following keys and values:
- % data - stream (filter)
- % buffer, buffer2 - string
- % hexify - procedure to convert buffer to hex if needed
- % leftstr - string containing (non-negative) integer
- % sectionstr - string containing a character 0 .. 2
- % stream - (stream) dictionary
- % proc - procedure of the form {-dict- type1read}
- % When the procedure is executing, this dictionary is current.
- % leftstr and sectionstr are strings so that we can change their values
- % reliably in case the font executes a restore!
- % We also have to do something special about embedded fonts that
- % execute definefont more than once -- that is the function of topFontDict.
-
- % Read an embedded Type 1 font.
- /readfontfilter { % <proc> readfontfilter <filter>
- 0 () /SubFileDecode filter
- } bdef
- /readtype1dict 5 dict dup begin
- /definefont {
- dup topFontDict eq topFontDict null eq or {
- dup wcheck not { dup length dict copy } if
- exch pop savedFontName exch
- } if
- //systemdict /definefont get exec
- } bdef
- /eexec {
- % Assume the font dictionary is on the top of the stack.
- count 0 gt { /topFontDict 1 index cvlit store } if
- 55665 /eexecDecode filter
- //systemdict begin readtype1dictcopy begin cvx stopped
- currentdict readtype1dictcopy eq { end } if
- currentdict //systemdict eq { end } if
- { stop } if
- } bdef
- end readonly def
- /readtype1 { % <font-resource> <stream-dict> readtype1 <font>
- % Read the definition, using a procedure-based filter
- % that turns binary/hex conversion on and off
- % at the right times.
- 1 index exch
- PDFfile fileposition 3 1 roll
- 10 dict begin
- /leftstr ( ) 10 string copy def
- dup /Length1 oget leftstr cvs pop
- /sectionstr <00> 1 string copy def
- /stream 1 index def
- true resolvestream /data exch def
- /buffer 1000 string def % arbitrary
- /buffer2 buffer length 2.1 div cvi 1 sub string def
- /hexify /buf2hex load def
- currentdict end
- /type1read cvx 2 array astore cvx dup 0 get /proc 2 index put
- readfontfilter
- % Some buggy embedded fonts leave extra junk on the stack,
- % so we have to make a closure that records the stack depth
- % in a fail-safe way.
- //systemdict begin
- % The PDF specification is somewhat muddy about whether
- % an embedded font's name is supposed to be the BaseFont
- % from the Font object or the FontName from the descriptor.
- % Acrobat Distiller requires the former. Save away the
- % name so we can substitute it at definefont time.
- //readtype1dict dup length 3 add dict copy begin
- 1 index /BaseFont oget /savedFontName exch def
- /topFontDict null def
- /readtype1dictcopy currentdict def
- { run } aload pop count 1 sub 2 packedarray cvx exec
- end end
- count exch sub { pop } repeat
- PDFfile 3 -1 roll setfileposition
- /BaseFont oget findfont
- adjustfont
- } bdef
-
- % Execute the appropriate reading procedure.
- /type1read % <dict> type1read <string>
- { begin leftstr cvi
- { type1read1 type1read2 type1read3 } sectionstr 0 get get exec
- ( ) leftstr copy cvs pop end
- } bdef
-
- % Read the next block of data into the buffer.
- /type1readdata % <left> <buffer> type1readdata <substring> <left'>
- { 0 2 index 2 index length min getinterval
- % Adobe requires readstring to signal an error if given
- % an empty string. Work around this nonsense here.
- dup length 0 ne { data exch readstring pop } if
- dup length 3 -1 roll exch sub
- DEBUG
- { dup =only ( read ) print
- 1 index length =only (: ) print
- 1 index == flush
- } if
- } bdef
-
- % Read the next block of the initial text portion.
- /type1read1 { % <left> type1read1 <string> <left'>
- DEBUG { (read1 ) print } if
- dup 0 eq {
- pop sectionstr 0 1 put
- stream /Length2 oget
- % Determine whether to hexify data for eexec.
- dup 8 lt {
- type1read2 % Hexify.
- } {
- DEBUG { (read2 ) print } if
- buffer2 type1readdata exch
- % The check doesn't have to be 100% accurate:
- % hexifying is always OK.
- dup 0 8 getinterval 0 exch { or } forall
- 128 ge {
- /hexify { } store
- /buffer2 buffer def % We don't need an intermediate buffer.
- } if hexify exch
- } ifelse
- } {
- buffer type1readdata
- } ifelse
- } bdef
-
- % Convert a string from binary to hex for eexec.
- % Free variables: buffer.
- /buf2hex { % <string> buf2hex <hexstring>
- buffer /ASCIIHexEncode filter dup 3 -1 roll writestring closefile
- buffer (>) search pop exch pop exch pop
- } bdef
-
- % Read the next block of the encrypted portion.
- /type1trailer
- (0000000000000000000000000000000000000000000000000000000000000000\n\
- 0000000000000000000000000000000000000000000000000000000000000000\n\
- 0000000000000000000000000000000000000000000000000000000000000000\n\
- 0000000000000000000000000000000000000000000000000000000000000000\n\
- 0000000000000000000000000000000000000000000000000000000000000000\n\
- 0000000000000000000000000000000000000000000000000000000000000000\n\
- 0000000000000000000000000000000000000000000000000000000000000000\n\
- 0000000000000000000000000000000000000000000000000000000000000000\n\
- cleartomark\n)
- readonly def
- /type1read2 { % <left> type1read2 <string> <left'>
- DEBUG { (read2 ) print } if
- dup 0 eq
- { pop sectionstr 0 2 put
- stream /Length3 oget
- dup 0 eq
- { DEBUG { (trailer ) print } if
- type1trailer exch
- }
- { type1read3
- }
- ifelse
- }
- { buffer2 type1readdata exch hexify exch
- }
- ifelse
- } bdef
-
- % Read the next block of the final text portion.
- % When finished, this procedure returns an empty string.
- /type1read3 % <left> type1read3 <string> <left'>
- { DEBUG { (read3 ) print } if
- buffer type1readdata
- } bdef
-
- % ---------------- Type 3 fonts ---------------- %
-
- /.notdefEncoding 256 { /.notdef } repeat 256 packedarray def
-
- /buildType3 { % <Type3-font-resource> buildType3 <font>
- 8 dict begin
- /FontType 3 def
- /Resources 1 index /Resources knownoget { oforce } { 0 dict } ifelse def
- /FontBBox 1 index /FontBBox get cvx def
- /FontMatrix 1 index /FontMatrix oget def
- /CharProcs 1 index /CharProcs oget def
- 1 index /Widths knownoget {
- /Widths exch def
- /FirstChar 1 index /FirstChar oget def
- /LastChar 1 index /LastChar oget def
- } if
- /FontName 1 index /Name get genfontname def
- /Encoding .notdefEncoding 2 index getencoding def
- % We have to define BuildChar rather than BuildGlyph:
- % there is no PDF equivalent of glyphshow, and we need
- % the character code to access the Widths.
- /BuildChar {
- % Stack: font charcode
- 1 index begin 3 dict begin
- /Font 3 -1 roll def /CharCode 1 index def
- Encoding exch get CharProcs exch oget
- PDFfile fileposition exch
- false resolvestream
- % Stack: filepos stream
- % Don't let setgcolor set the color inside the BuildGlyph
- % procedure, because this causes an /undefined error.
- q null /FillColor gput null /StrokeColor gput
- Font /Resources get exch pdfopdict .pdfruncontext
- Q
- PDFfile exch setfileposition
- end end
- } bdef
- FontName currentdict end definefont exch pop
- } bdef
- /.adjustcharwidth { % <wx> <wy> .adjustcharwidth <wx'> <wy'>
- /Widths where {
- begin
- CharCode FirstChar ge CharCode LastChar le and {
- exch pop Widths CharCode FirstChar sub get exch
- } if end
- } if
- } bdef
-
- % ---------------- TrueType fonts ---------------- %
-
- /TTfonts mark
- /Arial /Helvetica
- /Arial,Italic /Helvetica-Oblique
- /Arial,Bold /Helvetica-Bold
- /Arial,BoldItalic /Helvetica-BoldOblique
- /CourierNew /Courier
- /CourierNew,Bold /Courier-Bold
- /TimesNewRoman /Times-Roman
- /TimesNewRoman,Italic /Times-Italic
- /TimesNewRoman,Bold /Times-Bold
- /TimesNewRoman,BoldItalic /Times-BoldItalic
- .dicttomark readonly def
-
- /buildTrueType { % <TrueType-font-resource> buildTrueType <font>
- dup /BaseFont get
- dup TTfonts exch .knownget {
- exch pop
- % Hack required by the PDF specification: if the
- % font resource has Subtype = /TrueType but the actual
- % (installed) font is not a TrueType font, ignore the
- % Encoding in the font resource. However, all current
- % versions of Acrobat Reader have the 14 base TrueType
- % fonts built in, so this produces incorrect output for
- % badly designed PDF files that specify these file names
- % with /Subtype = /TrueType but no embedded definition.
- % Compensate for this by removing the /Subtype key when
- % looking up the font.
- exch dup length dict copy dup /Subtype null put exch
- } if pdffindfont
- } bdef
-
- % Read an embedded TrueType font.
- /readtruetype { % <font-resource> <stream-dict> readtruetype <font>
- % This is much simpler than readtype1, because we don't
- % have to deal with the tripartite .PFB format.
- 1 index exch
- PDFfile fileposition 3 1 roll
- true resolvestream readfontfilter
- % Stack: filepos fontres stream
- 1 index /Subtype get /CIDFontType2 eq {
- .loadttcidfont
- % Stack: filepos fontres cidfont
- 1 index /CIDToGIDMap knownoget {
- dup /Identity eq {
- pop
- } {
- true resolvestream
- % The following doesn't work for CIDToGIDMaps with more
- % than 32K-1 entries. We'll fix it later if necessary.
- % Stack: filepos fontres font mapstream
- dup 2 index /CIDCount oget 2 mul string readstring pop exch closefile
- exch dup length 5 add dict .copydict
- dup /FID undef
- dup /CIDMap 4 -1 roll put
- dup /CIDFontName get exch /CIDFont defineresource
- } ifelse
- } if
- } {
- null 2 index getencoding .loadpdfttfont
- } ifelse
- exch pop
- PDFfile 3 -1 roll setfileposition
- % Ignore both the Encoding and the Widths.
- exch pop
- } bdef
-
- % ---------------- Type 0 fonts ---------------- %
-
- % Predefine the known CMaps, but only create them on demand.
- /knownCMaps mark
- /Identity-H { /Identity-H 0 makeIdentityCMap }
- /Identity-V { /Identity-V 1 makeIdentityCMap }
- .dicttomark def
-
- /makeIdentityCMap { % <cmapname> <wmode> .makeIdentityCMap -
- .currentglobal true .setglobal 3 1 roll
- /CIDInit /ProcSet findresource begin
- 12 dict begin
- begincmap
- /WMode exch def
- /CMapName exch def
- /CIDSystemInfo 3 dict dup begin
- /Registry (Adobe) def
- /Ordering (Japan1) def
- /Supplement 0 def
- end def
- %/CMapName (see above)
- /CMapVersion 1 def
- /CMapType 1 def
- %WMode (see above)
- % The PDF documentation says that these CMaps map CIDs
- % "1 to 65,536". This is a misprint for 0 to 65,535.
- 1 begincodespacerange
- % <0001> <00ff> <0100> <ffff>
- <0000> <ffff>
- endcodespacerange
- 1 begincidrange
- % <0001> <00ff> 1 <0100> <ffff> 256
- <0000> <ffff> 0
- endcidrange
- endcmap
- CMapName currentdict /CMap defineresource
- knownCMaps CMapName 2 index put
- end % CMap
- end % CIDInit ProcSet
- exch .setglobal
- } bdef
-
- /buildType0 { % <Type0-font-resource> buildType0 <font>
- dup /BaseFont get % FontName
- 1 index /Encoding oget
- dup type /nametype eq {
- dup /CMap resourcestatus {
- pop pop /CMap findresource
- } {
- knownCMaps 1 index .knownget
- { exch pop exec } { /undefined signalerror } ifelse
- } ifelse
- } {
- PDFfile fileposition exch
- dup /CMapName get exch true resolvestream cvx exec
- /CMap findresource
- exch PDFfile exch setfileposition
- } ifelse % CMap
- [
- 3 index /DescendantFonts oget { exec resourcefont } forall
- ] % subfonts
- composefont
- % Stack: fontres font
- 1 index /FontMatrix knownoget {
- dup aload pop true {0 0 1 0 0 1} {3 -1 roll eq and} forall {
- 1 index exch makefont exch /FontName get exch definefont
- } {
- pop
- } ifelse
- } if exch pop
- } bdef
-
- % ---------------- CIDFontType0/2 fonts ---------------- %
-
- % Insert metrics into a CIDFont, by saving the PDF W, W2, DW, and DW2
- % arrays and using a (currently very inefficient) CDevProc.
- /addCIDmetrics { % <CIDFont-resource> <CIDFont> addCIDmetrics <fontdict>
- dup length 5 add dict .copydict
- dup /FID undef
- dup /UniqueID undef
- dup /XUID undef
- % Insert the widths into the font.
- {W W2 DW DW2} {
- % Stack: pdfresource newfont key
- 2 index 1 index .knownget {
- 2 index 3 1 roll put
- } {
- pop
- } ifelse
- } forall
- dup /CDevProc 1 index /CIDWProc load /exec load 3 packedarray cvx put
- exch pop
- } bdef
-
- % Apply the [D]W[2] metrics to a character before displaying.
- /CIDWProc { % <w0x> <w0y> <llx> <lly> <urx> <ury>
- % <w1x> <w1y> <vx> <vy> <cid> <font> CIDWproc
- % <w0x'> ... <vy'>
- begin
- % Look up and apply [D]W
- 10 index
- currentdict /DW .knownget { 1000 div exch pop } if
- currentdict /W .knownget {
- % Search the W array for the CID.
- % ****** NOT IMPLEMENTED YET ******
- pop
- } if
- 0 13 2 roll 11 -2 roll pop pop
- % Look up and apply [D]W2
- % ****** NOT IMPLEMENTED YET ******
- pop end
- } bdef
-
- /buildCIDType0 { % <CIDFontType0-font-resource> buildCIDType0 <font>
- dup /BaseFont get /CIDFont findresource
- addCIDmetrics dup /CIDFontName get exch /CIDFont defineresource
- } bdef
-
- /buildCIDType2 { % <CIDFontType2-font-resource> buildCIDType2 <font>
- dup /BaseFont get /CIDFont findresource
- addCIDmetrics dup /BaseFont get exch /CIDFont defineresource
- } bdef
-
- % ---------------- Other embedded fonts ---------------- %
-
- /fontloadprocs mark
- /Type1C /readType1C cvx
- /CIDFontType0C /readCIDFontType0C cvx
- .dicttomark readonly def
-
- % Read an embedded compressed font.
- /readType1C { % <font-resource> <stream-dict> readType1C <font>
- 1 index exch
- PDFfile fileposition 3 1 roll
- dup true resolvestream dup readfontfilter
- % Stack: pos resource streamdict stream filter
- 3 index /FontDescriptor oget /FontName oget
- 1 index FRD
- closefile closefile pop
- PDFfile 3 -1 roll setfileposition
- /FontDescriptor oget /FontName oget findfont
- adjustfont
- } bdef
-
- % Read an embedded CFF CIDFont.
- /readCIDFontType0C { % <font-resource> <stream-dict> readCIDFontType0C <font>
- PDFfile fileposition 3 1 roll
- dup true resolvestream dup readfontfilter
- % Stack: pos resource streamdict stream filter
- 3 index /FontDescriptor oget /FontName oget
- 1 index FRD
- closefile closefile pop
- PDFfile 3 -1 roll setfileposition
- % Some broken Adobe software produces PDF files in which
- % the FontName of the CFF font and the FontName in the
- % FontDescriptor don't match the BaseFont in the font.
- % Use the FontName, rather than the BaseFont, here.
- dup /FontDescriptor oget /FontName oget /CIDFont findresource
- addCIDmetrics dup /CIDFontName get exch /CIDFont defineresource
- } bdef
-
- % ---------------- Font lookup ---------------- %
-
- /fonttypeprocs mark % <font-resource> -proc- <font>
- /Type0 /buildType0 cvx
- /Type1 /buildType1 cvx
- /MMType1 1 index
- /Type3 /buildType3 cvx
- /TrueType /buildTrueType cvx
- /CIDFontType0 /buildCIDType0 cvx
- /CIDFontType2 /buildCIDType2 cvx
- .dicttomark readonly def
-
- /resourcefont % <font-resource> resourcefont <font>
- { dup /PSFont .knownget
- { /FID .knownget { type /fonttype eq } { false } ifelse }
- { false }
- ifelse
- { /PSFont get
- }
- { dup dup /FontDescriptor knownoget
- { % Stack: font-res font-res font-desc
- dup /FontFile knownoget
- { exch pop readtype1 true }
- { dup /FontFile2 knownoget
- { exch pop readtruetype true }
- { /FontFile3 knownoget
- { dup /Subtype get fontloadprocs exch get exec true }
- { false }
- ifelse
- }
- ifelse
- }
- ifelse
- }
- { false }
- ifelse
- % Stack: font-res font-res false
- % -or-: font-res font true
- not
- { dup /Subtype get fonttypeprocs exch get exec }
- if
- 2 copy /PSFont exch put
- exch pop
- }
- ifelse
- } bdef
-
- drawopdict begin
- /d0 {
- .adjustcharwidth setcharwidth
- } bdef
- /d1 {
- 6 -2 roll .adjustcharwidth 6 2 roll setcachedevice
- } bdef
- /Tf {
- 1 index Page /Font rget not { 1 index /invalidfont signalerror } if
- resourcefont exch Tf pop
- } bdef
- end
-
- end % pdfdict
- end % GS_PDF_ProcSet
- .setglobal
-