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JETPAK DeskJet and LaserJet Printer Utilities by Ross Beresford Version 1.1 (Public Domain) 4th August 1991 CONTENTS -------- 1. JETL2D - Convert LaserJet font files to DeskJet format 2. JETD2L - Convert DeskJet font files to LaserJet format 3. JETPRINT - Print soft font file summary sheets 4. JETPRD - Output Printer Description files for soft fonts 5. JETDMP - Dump symbolic listings for soft fonts 6. JETRST - Restore soft font files from symbolic listings Appendix A. Error Messages Appendix B. Catalogue of Successfully Converted Fonts Appendix C. Acknowledgments Appendix D. JETPAK Release History INTRODUCTION ------------ The JETPAK package contains HP LaserJet and DeskJet soft font converters and associated utilities: JETL2D converts both portrait and landscape format LaserJet soft fonts to DeskJet format; in sizes up to the limits of the target DeskJet series printer. JETD2L converts DeskJet soft fonts back into LaserJet format. The other utilities can be used with both LaserJet and DeskJet format soft fonts: A font summary sheet utility, JETPRINT, prints a chart of the character set and some sample text for a soft font. JETPRD, a printer description file utility, generates a file containing the information required by word processors to select and justify a soft font. The JETDMP utility can be used to dump a soft font to a text file which can subsequently be restored using JETRST; with a text editor, these utilities allow you to examine and modify a soft font. Some of the above utilities may not be provided on some platforms. The following sections describe the utilities in general terms: usage information specific to the hardware platform can be found in a separate document. Miscellaneous information not related to any particular utility can be found in Appendices at the end of the document. 1. JETL2D - Convert LaserJet font files to DeskJet format ====================================================== This program reads in LaserJet format soft font files, converts the header information and bitmaps, and outputs soft font files in the format used by DeskJet series printers. To use soft fonts on a DeskJet you must have a RAM cartridge installed in the printer. Unexpanded DeskJet printers do not support soft fonts. To print using the fonts, you must "download" them first. HP include a downloader utility with the soft fonts you can buy from them; there are also several non-commercial equivalents you could use: for example, Elfring Soft Fonts' DOWNLOAD program. JETL2D can process soft fonts up to the limits of the DeskJet printers themselves: The DeskJet Plus and DeskJet 500 support portrait soft fonts up to about 36 point, though they can go higher with narrow fonts; landscape fonts (fixed spacing only) up to 6 pitch are supported. The JETL2D program prints an error message and stops the conversion if the output font wouldn't work on a DeskJet Plus or DeskJet 500. The original DeskJet printer supports portrait soft fonts up to about 14 point; landscape soft fonts are not supported. The JETL2D program prints a warning message if the output font won't work on an original DeskJet printer. Appendix A gives all the error messages that may be produced by this program and explains them in detail. Appendix B lists all the freely available LaserJet soft fonts that have been successfully converted to DeskJet format using JETL2D version 1.1. JETL2D includes two options which allow the user some control over the translation process: -o The old DeskJet option: by default, JETL2D creates soft fonts for the DeskJet 500 only. If you have an original DeskJet or a DeskJet Plus printer, you must specify this option. -j The jaggy option: by default, JETL2D "optimises" the bitmap for each character as it is converted. You can specify this option if you wish to disable the bitmap optimisation. The following sections describe the effect of these two options in more detail: 1.1 Old DeskJet Option [-o]: One of the enhancements in the DeskJet 500 was the support for kerned fonts: that is, the left and right side bearings for a character can be negative in a DeskJet 500 font. Every character in a font has both a left and a right side bearing associated with it that is dependent on the overall shape of the character. The left and right side bearings for a character determine how much space is placed between it and the characters to its left and right. Negative side bearings are used with characters that have long serifs or tails: these characters are designed to overlap with their neighbours, so that there is no ugly space left between the characters of a word. Because of the technology used in the old DeskJet models, bitmaps could not overlap and no negative side bearing was allowed. Oblique fonts, such as Italic and Chancery, look far too spaced out when printed with an old model DeskJet. In DeskJet 500 format soft fonts, negative side bearings can be specified for characters. On the DeskJet 500, oblique fonts can be made to appear correctly spaced out. By default, JETL2D creates a DeskJet 500 format soft font and copies over any negative side bearings specified in the LaserJet font. If the [-o] option is specified, JETL2D creates an old DeskJet format soft font and discards any negative side bearings specified in the LaserJet font. A warning message is printed, giving the largest negative side bearing(s) discarded. 1.2 Jaggy Option [-j]: The LaserJet printer bitmaps are based on a 300x300 dot per inch bitmap; the DeskJet bitmaps are based on 600x300 dots per inch, but with a rule that horizontally adjacent bits may not both be set. In other words, to convert the bitmap, you need to selectively add one zero bit for every bit of the LaserJet bitmap. When the [-j] option is specified, the conversion program takes the simple approach of inserting a column of zero bits between each column of the LaserJet bitmap. For diagonal lines, this will produce a more jaggy line in the converted bitmap than is technically possible: ....@@@@ ........@.@.@.@ .........@.@.@.@ ....@@@@ ........@.@.@.@ ........@.@.@.@. ...@@@@. ......@.@.@.@.. .......@.@.@.@.. ...@@@@. ......@.@.@.@.. ......@.@.@.@... ..@@@@.. ....@.@.@.@.... .....@.@.@.@.... ..@@@@.. ....@.@.@.@.... ....@.@.@.@..... .@@@@... ..@.@.@.@...... ...@.@.@.@...... .@@@@... ..@.@.@.@...... ..@.@.@.@....... @@@@.... @.@.@.@........ .@.@.@.@........ @@@@.... @.@.@.@........ @.@.@.@......... LaserJet Converted DeskJet Perfect DeskJet Since the jagginess is caused by differences of 1/600" in dot placement, it is quite hard to spot unless you are looking for it. The effect is most noticeable on fonts which have straight oblique lines, such as an italic variant of a Sans Serif font. The problem may be hidden in the overall fuzziness of DeskJet output, particular if you are using paper where the ink "bleeds" significantly. Even when this is the case, the poor dot placement is contributing to the low quality output. If the [-j] option isn't specified, JETL2D attempts to smooth out the edges of the bitmap using the following algorithm. The edges of the character shape are identified and collected into closed polygons. Sections of the polygon having "near vertical" slope are identified and smoothed out. A section with near vertical slope comprises a vertical edge (V1) separated by two 1 bit wide horizontal edges; the separating horizontal edges must be of the same type, ie both top edges or both bottom edges. The following four simple cases of near vertical slope are possible: @@@@@ @@@@@ @@@.. ..@@@ V2 -> @@@@@ @@@@@ @@@.. ..@@@ @@@@@ @@@@@ @@@.. ..@@@ @@@@@ @@@@@ @@@.. ..@@@ .@@@@ @@@@. @@@@. .@@@@ .@@@@ @@@@. @@@@. .@@@@ V1 -> .@@@@ @@@@. @@@@. .@@@@ .@@@@ @@@@. @@@@. .@@@@ ..@@@ @@@.. @@@@@ @@@@@ ..@@@ @@@.. @@@@@ @@@@@ V3 -> ..@@@ @@@.. @@@@@ @@@@@ ..@@@ @@@.. @@@@@ @@@@@ NW SW SE NE The smoothing algorithm splits the vertical edge (V1) at the centre of the section into two halves, shifting one half to the left or right to smooth out the slope. Vertical edges that continue the near vertical section to either side are treated in an analogous way (this is NOT the case in the simple example above). If the centre vertical edge (V1) is surrounded by vertical edges that do not continue the near vertical section, then the slope implied by the adjacent near vertical section is extended into the surrounding vertical edges, where possible. This is the case in the example above, where V2 and V3 do not continue the near vertical section, so that the slope implied by edge V1 is extended into V2 and V3. The following shows how the example being considered is smoothed out: @.@.@.@.@......@.@.@.@..@......@.@.@................@..@ @.@.@.@.@......@.@.@.@..@......@.@.@................@..@ .@.@.@..@......@.@.@.@.@.......@.@..@..............@.@.@ .@.@.@..@......@.@.@.@.@.......@.@..@..............@.@.@ ..@.@.@.@......@.@.@..@........@.@.@.@............@.@..@ ..@.@.@.@......@.@.@..@........@.@.@.@............@.@..@ ...@.@..@......@.@.@.@.........@.@.@..@..........@.@.@.@ ...@.@..@......@.@.@.@.........@.@.@..@..........@.@.@.@ ....@.@.@......@.@..@..........@.@.@.@.@........@.@.@..@ ....@.@.@......@.@..@..........@.@.@.@.@........@.@.@..@ .....@..@......@.@.@...........@.@.@.@..@......@.@.@.@.@ .....@..@......@.@.@...........@.@.@.@..@......@.@.@.@.@ Note that the smoothing algorithm occasionally leaves two adjacent clear bits in the body of the character. This is sometimes necessary in order to avoid two horizontally adjacent set bits; the printed character does not have a visible gap, as the surrounding ink dots are large enough to coalesce into the space. The disadvantage of the bitmap smoothing algorithm is that an optimised DeskJet font is between 10% and 20% larger than an unoptimised font. If you have an original DeskJet printer, the increased size of the output font may make it unusable; in this case, the [-j] option should be specified to reduce the output font size as much as possible. 2. JETD2L - Convert DeskJet font files to LaserJet format ====================================================== This program reads in DeskJet format soft font files, converts the header information and bitmaps, and outputs soft font files in the format used by LaserJet series printers. This program is only intended for the occasional conversion of DeskJet to LaserJet fonts: most users want to translate fonts the other way. Because this program will be used very seldom, it was made as simple as possible: it has a number of deficiencies which are easily worked around using LaserJet font editing tools: Firstly, characters in DeskJet soft fonts frequently use a much larger cell size than is actually needed to contain the set bits of the character. When JETD2L converts the DeskJet character bitmaps to LaserJet format, it makes no attempt to minimise the size of the output bitmaps; thus, the size of the LaserJet soft font file can be much larger than it really needs to be. There are several freely available tools that can be used to clean up the LaserJet font once it has been created in LaserJet format. Secondly, DeskJet soft fonts that exploit the full 600x300 bitmap, may have two adjacent clear bits in the body of the character bitmap: these may map into a clear bit in the middle of the LaserJet character bitmap. If this occurs, then it will be necessary to use a font editor to fill in the "holes" in the character, once the font has been created in LaserJet format. There are several freely available font editors that could be used to do this. 3. JETPRINT - Print soft font file summary sheets ============================================== This program prints summary sheets for soft font files. Typographical information about the font, a complete chart of the character set, and a sample of normal text are included in the output. JETPRINT also gives the escape sequence required to select the soft font as the primary font in the printer. Note that in the printed escape sequence string, "Ec" represents the escape character. JETPRINT can be used immediately after a soft font has been converted using JETL2D as a quick check that the appearance of the font is acceptable, and to keep a record of the converted font. JETPRINT should work with both DeskJet and LaserJet format soft fonts and printers. However, JETPRINT downloads the soft font directly, without doing a conversion. So only use it to print LaserJet soft fonts on a LaserJet, and DeskJet soft fonts on a DeskJet! Appendix A gives all the error messages that may be produced by this program and explains them in detail. 4. JETPRD - Output Printer Description files for soft fonts ======================================================== This program produces a generic printer description file for a font, including all the information required by word processors to select and justify the font. The format of the file is not that used by any of the standard word processors; however, the straightforward layout of the file should allow the information to be converted to whatever format is required, either manually or using a simple conversion program. JETPRD works with both DeskJet and LaserJet format soft fonts; the printer description file output format is the same for both types of font. The first line in the file is the escape sequence required to unambiguously select the font, expressed in decimal. Each of the remaining lines in the file gives a character code in decimal, and its escapement width in 1/300s of an inch (the width of the character used in deciding how to justify a line of text). The following example is taken from an 8 point font: +---- Escape sequence required to select the font | | +-> 27,38,108,48,79,27,40,53,77,27,40,115,49,112,56,118,48,115,48,98,53,84 32=10 33=11 34=20 <-- Escapement for character 34 (") is 20/300 inch ... ... 252=24 253=24 254=24 <-- Escapement for character 254 is 24/300 inch Appendix A gives all the error messages that may be produced by this program and explains them in detail. 5. JETDMP - Dump symbolic listings for soft fonts ============================================== This program generates a symbolic listing of the contents of a soft font file. It gives much more detailed information about the font than JETPRINT, and outputs to a file rather than the printer. The dump files produced by JETDMP contain all the information in the soft font in a viewable and editable form. Together with JETRST, this provides a means of editing soft fonts. JETDMP works with both DeskJet and LaserJet format soft fonts. The ability to edit files using JETDMP and JETRST is more important for DeskJet users: there are several freely available interactive font editors (for example, QFONT) that allow you easily modify LaserJet fonts: to my knowledge, none support the DeskJet format, however. Appendix A gives all the error messages that may be produced by this program and explains them in detail. 6. JETRST - Restore soft font files from symbolic listings ======================================================= This program is a compiler for the dump files generated by JETDMP and can restore a soft font file from the information contained in the dump. Since absolutely all the font data is included in the dump file, it allows someone with knowledge about the font format complete freedom to make changes to the font data. Dump file records are introduced by keywords, which start with $. The order of records is significant and shouldn't be changed. The layout within records is flexible and token based: tokens can be separated by space, tab, new-line or form feed; comments are introduced by # and extend to the end of the line. All numeric data is expressed in decimal; in bitmaps, the '@' character denotes a set bit and any other non-white-space character is assumed to be a clear bit. Appendix A gives all the error messages that may be produced by this program and explains them in detail. Appendix A. Error Messages -------------------------- The utilities can print two types of messages: WARNING messages are informational, and the output file will still be valid provided there are no ERROR type messages. ERROR messages cause the program to abandon processing of an input file: any output file produced will not be valid. However, the program will continue processing with the next input file. The following error messages may appear when the programs start up, before any files have been processed: ERROR: no files found matching <parameter> This message is produced on platforms where the JETPAK programs do wildcard expansion internally (such as on MS-DOS). It indicates that the search for files matching the <parameter> failed. ERROR: not enough heap to process arguments This message may be produced if the program runs out of heap space while processing the command line. It is unlikely to occur, but if it does, try reducing the number of files to be processed. The following messages relate to the processing of an individual file: messages are preceded by the name of the file that was being processed when the error occurred: ERROR: bitmap too big to handle ERROR: font too big to handle One of these will occur for fonts that are too large to be used on the DeskJet. For proportional orientation, the limit is around 40 point, depending on the width of the font; for landscape orientation the program rejects fonts bigger than 6 pitch. This error may also be produced if the source font is corrupted or inconsistent. ERROR: character code <code> too big to handle This error will occur if a character code larger than 255 is included in the source font: the font converters cannot process a font with codes larger than 255. ERROR: font contains continuation data This error will occur if a LaserJet soft font includes continuation data: JETL2D cannot process a LaserJet font which includes continuation data. ERROR: missing data at line <line> This message is printed by JETRST if it finds a record or end of file when it was expecting to find some more data. Check the syntax of the file at <line>. ERROR: input file is already in DeskJet format JETL2D prints this message if the input soft font file is in DeskJet format, and therefore doesn't need to be converted. ERROR: input file is already in LaserJet format JETD2L prints this message if the input soft font file is in LaserJet format, and therefore doesn't need to be converted. ERROR: problem reading input file This message is printed when the input file is not of the expected type: utilities that process soft font files print this if they cannot read valid soft font data; JETRST prints this if it fails to find any valid dump data. ERROR: problem writing output file This error message will occur if there's some fatal problem writing the output file to disk, such as the file system filling up. ERROR: missing keyword at line <line> This message is printed by JETRST if it finds data or end of file when it was expecting to find a keyword. Check the syntax of the file at <line>. ERROR: not enough heap to process font This message will occur if the font converters run out of heap while processing the character data. If this happens, make some more memory available, then try converting the font again. ERROR: only fixed width landscape fonts convertible This message is printed by JETL2D if you try to convert proportional spacing landscape fonts. Only fixed spacing landscape fonts are supported on the DeskJet. ERROR: can't open for reading On platforms where JETPAK does no wildcard matching this message may be produced if a file specified on the command line does not exist, or doesn't have read permissions. ERROR: can't open <file> for writing This message may appear if the output file cannot be opened because the file system is full, or because <file> exists, but does not have permissions to be overwritten. ERROR: output file will overwrite input file This message is produced when a program detects that its output file will overwrite its input file - a situation that isn't handled. WARNING: unrecognised font format This message is produced when the input header data is in a format other than LaserJet or DeskJet. JETPAK is not programmed to handle this situation. Rather than reject the input file, the program will carry on, assuming LaserJet format. More serious errors may appear later, and the output file may not be valid. WARNING: unrecognised character format This message is produced when the input character data is in a format other than LaserJet or DeskJet. JETPAK is not programmed to handle this situation. Rather than reject the input file, the program will carry on, assuming LaserJet format. More serious errors may appear later, and the output file may not be valid. WARNING: skipping ESC <c> <n> <c> You will get this when the soft font file includes printer escape sequences that are not relevant to the font itself. A very few soft fonts embed escape sequences, so that the font file can be copied straight to the printer without using a downloader. WARNING: landscape font unusable on original Deskjet JETL2D prints this message when it creates a soft font in landscape format, which cannot be used on the original DeskJet printer. If you have a DeskJet PLUS or DeskJet 500, you can ignore this message. WARNING: output font too large for original Deskjet JETL2D prints this message when it creates a soft font that is too big to be used with the original DeskJet printer. If you have a DeskJet PLUS or DeskJet 500, you can ignore this message. WARNING: output font can only be used on the DeskJet 500 JETL2D will always print this message if the -o option is omitted, as a reminder that the output font will be unusable on the DeskJet and DeskJet Plus. WARNING: <side> negative side bearing lost (<n> for <c> worst) JETL2D prints up to two of these messages (for left and right <side>) when it has to throw away negative side bearing in a font. WARNING: string not terminated at end of line <line> This message is printed by JETRST when string data is not terminated at the end of a line. Check that you intended to include a new line in the string at <line>. WARNING: token overflow at line <line> JETRST prints this message when it runs out of space reading in a token from the dump file. Usually this will be caused by some disaster, such as missing a quote from the end of a string. Check the syntax at and preceding <line>. Appendix B. Catalogue of Successfully Converted Fonts ----------------------------------------------------- The following freely available LaserJet soft fonts were all successfully converted during JETL2D testing. The fixed spacing fonts marked with a (*) were converted in the original portrait orientation, and as landscape fonts after being rotated by QFONT. Archive Font file Description AVANT agwn3008.sfp 8 point Avant Garde agwn3010.sfp 10 point Avant Garde agwn3012.sfp 12 point Avant Garde agwn3014.sfp 14 point Avant Garde agwn3018.sfp 18 point Avant Garde agwn3024.sfp 24 point Avant Garde agwi3008.sfp 8 point Avant Garde italic agwi3010.sfp 10 point Avant Garde italic agwi3012.sfp 12 point Avant Garde italic agwi3014.sfp 14 point Avant Garde italic agwi3018.sfp 18 point Avant Garde italic agwi3024.sfp 24 point Avant Garde italic CALLIG14 callig14.usp 19 point Calligraphic CENGLX cen08rb0.usp 8 point Century Schoolbook cen10rb0.usp 10 point Century Schoolbook cen10bb5.usp 10 point Century Schoolbook bold cen10ib0.usp 10 point Century Schoolbook italic cen12rb0.usp 12 point Century Schoolbook cen12bb5.usp 12 point Century Schoolbook bold cen12ib0.usp 12 point Century Schoolbook italic cen18rb0.usp 18 point Century Schoolbook cen24rb0.usp 24 point Century Schoolbook GARGLX gar12rb0.usp 12 point Garamond gar12bb5.usp 12 point Garamond bold gar12ib0.usp 12 point Garamond italic gar18rb0.usp 18 point Garamond gar24rb0.usp 24 point Garamond gar30rb0.usp 30 point Garamond HP2FONTS (*) co060r20.pcp 20 pitch Courier co240r05.pcp 5 pitch Courier (*) or150r10.pcp 10 pitch Orator (*) sc100r12.pcp 12 pitch Script HPLASER sc18r#us.sfp 18 point Script oe18r#us.sfp 18 point Old English he100rpn.usp 10 point Helv he100bpn.usp 10 point Helv bold he100ipn.usp 10 point Helv italic ro100rpn.usp 10 point TmsRmn ro100bpn.usp 10 point TmsRmn bold ro100ipn.usp 10 point TmsRmn italic HPSOFT (*) large.sfp 6 pitch Line Printer (*) largehlw.sfp 6 pitch Line Printer (*) tiny.sfp 23 pitch Line Printer LEADERS leaders.sfp 15 point Leaders LJBOOK23 bold18.usl 19 pitch Landscape Letter Gothic LJTR_SYM symbol08.sfp 8 point TmsRmn Symbols symbol10.sfp 10 point TmsRmn Symbols symbol12.sfp 12 point TmsRmn Symbols symsub14.sfp 14 point TmsRmn Symbols symsub18.sfp 18 point TmsRmn Symbols symsub24.sfp 24 point TmsRmn Symbols OPTGLX opt10rb0.usp 10 point Optima opt10bb5.usp 10 point Optima bold opt10ib0.usp 10 point Optima italic opt12rb0.usp 12 point Optima opt12bb5.usp 12 point Optima bold opt12ib0.usp 12 point Optima italic opt18rb0.usp 18 point Optima opt24rb0.usp 24 point Optima ROMANFIX (*) rf100rpn.usp 10 pitch Roman Fixed SCRIPT10 sc100rpn.usp 10 point Script SWFTE abbey18.sfp 18 point Abbey amrtyp18.sfp 18 point Amertype avanti18.sfp 18 point Avant Garde basque18.sfp 18 point Basque beget18.sfp 18 point Beget bold bigcty18.sfp 18 point Big City centrm18.sfp 18 point Century Schoolbook chan18.sfp 18 point Chancelor chan24ob.sfp 24 point Chancelor bold italic coop18.sfp 18 point Coop cour18.sfp 4 pitch Courier galaxy18.sfp 18 point Galaxy garmet18.sfp 18 point Garamond gillie18.sfp 18 point Gillie bold helv10.sfp 10 point Helv helv14c.sfp 14 point Helv compressed helv18.sfp 18 point Helv helv24st.sfp 24 point Helv stripy bold ltgoth18.sfp 4 pitch Letter Gothic olivia18.sfp 18 point Olivia light optims18.sfp 18 point Optima orna18.sfp 18 point Ornamental palatn18.sfp 18 point Palatine prestg18.sfp 4 pitch Prestige rock18.sfp 18 point Rockland roman18.sfp 18 point TmsRmn romani18.sfp 18 point TmsRmn italics romn10.sfp 10 point TmsRmn romn18cb.sfp 18 point TmsRmn bold compressed symbol18.sfp 4 pitch Courier Symbols SYMBOL10 cs100rpn.usp 10 point Computer Symbols dg100rpn.usp 10 point Dingbats RMFONTS rm12.fnt 12 point TmsRmn rmi12.fnt 12 point TmsRmn italic rb12.fnt 12 point TmsRmn bold rbi12.fn 12 point TmsRmn bold italic rbx12.fnt 12 point TmsRmn bold expanded Appendix C. Acknowledgments ---------------------------- Thanks are due to the following for their contributions to JETPAK during its development: Ross Alford John Cleaver Dick Grune Roy Harris John Newgas Appendix D. JETPAK Release History ---------------------------------- JETPAK11: Version 1.1 - 4th August 1991 This is the second major release of JETPAK for the MS-DOS platform. It will be distributed worldwide via SIMTEL, the comp.binaries.ibm.pc Usenet group, and directly to UK bulletin boards. The following major enhancements were made: JETL2D can now create DJ500 output fonts (mainly to take advantage of negative kerning on the DeskJet 500) JETL2D can now smooth the DJ bitmap outlines, taking advantage of the increased resolution (600x300) possible on all the DeskJet range printers JETD2L was added, allowing DeskJet soft fonts to be converted back into LaserJet format With this release, I have completed the package to my own satisfaction: this is why I am placing it in the public domain. The full sources are being distributed as JPSRC11. I will be interested to hear from users or developers of the product by email (rberesfo@cix.compulink.co.uk). However, I am not expecting to do any more work on the product myself. JPBIN106: Version 1.06 - 14th July 1991 Beta Test version for release 1.1 JPBIN105: Version 1.05 - 26th May 1991 Alpha Test version for release 1.1 JETPAK10: Version 1.0 - 1st October 1990 This is the first full release of JETPAK for the MS-DOS platform. It will be distributed worldwide via the comp.binaries.ibm.pc group over Usenet, and directly to UK bulletin boards. The following major enhancements were made: Support for multiple file processing and wildcard matching was added to all the utilities Landscape orientation support was added to JETL2D and JETPRINT JETL2D now always sets the output font quality to "Letter Quality" so that draft mode works correctly with converted soft fonts JETL2D checks for out-of-range underline parameters in the output font, and uses a rule-of-thumb to generate sensible values based on the font size JETPRD was written to generate printer description file information for a soft font JETDMP now creates dump files, rather than outputting to the screen JETRST can be used to compile edited dump files and restore the corresponding soft font files JETPAK01: Version 0.1 (beta) - 1st July 1990 This was the first public release of JETPAK for the MS-DOS platform. It was distributed to a number of bulletin boards in the UK.