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diff --git a/kpdf/xpdf/README.xpdf b/kpdf/xpdf/README.xpdf new file mode 100644 index 00000000..71fd62e3 --- /dev/null +++ b/kpdf/xpdf/README.xpdf @@ -0,0 +1,405 @@ +Xpdf +==== + +version 3.02 +2007-feb-27 + +The Xpdf software and documentation are +copyright 1996-2007 Glyph & Cog, LLC. + +Email: derekn@foolabs.com +WWW: http://www.foolabs.com/xpdf/ + +The PDF data structures, operators, and specification are +copyright 1985-2006 Adobe Systems Inc. + + +What is Xpdf? +------------- + +Xpdf is an open source viewer for Portable Document Format (PDF) +files. (These are also sometimes also called 'Acrobat' files, from +the name of Adobe's PDF software.) The Xpdf project also includes a +PDF text extractor, PDF-to-PostScript converter, and various other +utilities. + +Xpdf runs under the X Window System on UNIX, VMS, and OS/2. The non-X +components (pdftops, pdftotext, etc.) also run on Win32 systems and +should run on pretty much any system with a decent C++ compiler. + +Xpdf is designed to be small and efficient. It can use Type 1 or +TrueType fonts. + + +Distribution +------------ + +Xpdf is licensed under the GNU General Public License (GPL), version +2. In my opinion, the GPL is a convoluted, confusing, ambiguous mess. +But it's also pervasive, and I'm sick of arguing. And even if it is +confusing, the basic idea is good. + +In order to cut down on the confusion a little bit, here are some +informal clarifications: + +- I don't mind if you redistribute Xpdf in source and/or binary form, + as long as you include all of the documentation: README, man pages + (or help files), and COPYING. (Note that the README file contains a + pointer to a web page with the source code.) + +- Selling a CD-ROM that contains Xpdf is fine with me, as long as it + includes the documentation. I wouldn't mind receiving a sample + copy, but it's not necessary. + +- If you make useful changes to Xpdf, please make the source code + available -- post it on a web site, email it to me, whatever. + +If you're interested in commercial licensing, please see the Glyph & +Cog web site: + + http://www.glyphandcog.com/ + + +Compatibility +------------- + +Xpdf is developed and tested on a Linux 2.4 x86 system. + +In addition, it has been compiled by others on Solaris, AIX, HP-UX, +Digital Unix, Irix, and numerous other Unix implementations, as well +as VMS and OS/2. It should work on pretty much any system which runs +X11 and has Unix-like libraries. You'll need ANSI C++ and C compilers +to compile it. + +The non-X components of Xpdf (pdftops, pdftotext, pdfinfo, pdffonts, +pdftoppm, and pdfimages) can also be compiled on Win32 systems. See +the Xpdf web page for details. + +If you compile Xpdf for a system not listed on the web page, please +let me know. If you're willing to make your binary available by ftp +or on the web, I'll be happy to add a link from the Xpdf web page. I +have decided not to host any binaries I didn't compile myself (for +disk space and support reasons). + +If you can't get Xpdf to compile on your system, send me email and +I'll try to help. + +Xpdf has been ported to the Acorn, Amiga, BeOS, and EPOC. See the +Xpdf web page for links. + + +Getting Xpdf +------------ + +The latest version is available from: + + http://www.foolabs.com/xpdf/ + +or: + + ftp://ftp.foolabs.com/pub/xpdf/ + +Source code and several precompiled executables are available. + +Announcements of new versions are posted to several newsgroups +(comp.text.pdf, comp.os.linux.announce, and others) and emailed to a +list of people. If you'd like to receive email notification of new +versions, just let me know. + + +Running Xpdf +------------ + +To run xpdf, simply type: + + xpdf file.pdf + +To generate a PostScript file, hit the "print" button in xpdf, or run +pdftops: + + pdftops file.pdf + +To generate a plain text file, run pdftotext: + + pdftotext file.pdf + +There are four additional utilities (which are fully described in +their man pages): + + pdfinfo -- dumps a PDF file's Info dictionary (plus some other + useful information) + pdffonts -- lists the fonts used in a PDF file along with various + information for each font + pdftoppm -- converts a PDF file to a series of PPM/PGM/PBM-format + bitmaps + pdfimages -- extracts the images from a PDF file + +Command line options and many other details are described in the man +pages (xpdf.1, etc.) and the VMS help files (xpdf.hlp, etc.). + + +Upgrading from Xpdf 2.xx +------------------------ + +WARNING: Xpdf 3.00 switched to a new PDF rasterizer, which no longer +uses X fonts. You'll need a set of Base-14 fonts -- the URW fonts +distributed with ghostscript can be used for this. Xpdf will search +for the URW fonts, but if you have them installed in a non-standard +directory, you'll need to set up an xpdfrc config file to point to +them. For full details, please see the xpdfrc(5) man page. + + +Compiling Xpdf +-------------- + +See the separate file, INSTALL. + + +Bugs +---- + +If you find a bug in Xpdf, i.e., if it prints an error message, +crashes, or incorrectly displays a document, and you don't see that +bug listed here, please send me email, with a pointer (URL, ftp site, +etc.) to the PDF file. + + +Acknowledgments +--------------- + +Thanks to: + +* Patrick Voigt for help with the remote server code. +* Patrick Moreau, Martin P.J. Zinser, and David Mathog for the VMS + port. +* David Boldt and Rick Rodgers for sample man pages. +* Brendan Miller for the icon idea. +* Olly Betts for help testing pdftotext. +* Peter Ganten for the OS/2 port. +* Michael Richmond for the Win32 port of pdftops and pdftotext and the + xpdf/cygwin/XFree86 build instructions. +* Frank M. Siegert for improvements in the PostScript code. +* Leo Smiers for the decryption patches. +* Rainer Menzner for creating t1lib, and for helping me adapt it to + xpdf. +* Pine Tree Systems A/S for funding the OPI and EPS support in + pdftops. +* Easy Software Products for funding several improvements to the + PostScript output code. +* Tom Kacvinsky for help with FreeType and for being my interface to + the FreeType team. +* Theppitak Karoonboonyanan for help with Thai support. +* Leonard Rosenthol for help and contributions on a bunch of things. +* Alexandros Diamantidis and Maria Adaloglou for help with Greek + support. +* Lawrence Lai for help with the CJK Unicode maps. + +Various people have contributed modifications made for use by the +pdftex project: + +* Han The Thanh +* Martin Schröder of ArtCom GmbH + + +References +---------- + +Adobe Systems Inc., _PDF Reference, sixth edition: Adobe Portable +Document Format version 1.7_. +http://www.adobe.com/devnet/pdf/pdf_reference.html +[The manual for PDF version 1.7.] + +Adobe Systems Inc., "Errata for the PDF Reference, sixth edition, +version 1.7", October 16, 2006. +http://www.adobe.com/devnet/pdf/pdf_reference.html +[The errata for the PDF 1.7 spec.] + +Adobe Systems Inc., _PostScript Language Reference_, 3rd ed. +Addison-Wesley, 1999, ISBN 0-201-37922-8. +[The official PostScript manual.] + +Adobe Systems, Inc., _The Type 42 Font Format Specification_, +Adobe Developer Support Technical Specification #5012. 1998. +http://partners.adobe.com/asn/developer/pdfs/tn/5012.Type42_Spec.pdf +[Type 42 is the format used to embed TrueType fonts in PostScript +files.] + +Adobe Systems, Inc., _Adobe CMap and CIDFont Files Specification_, +Adobe Developer Support Technical Specification #5014. 1995. +http://www.adobe.com/supportservice/devrelations/PDFS/TN/5014.CIDFont_Spec.pdf +[CMap file format needed for Japanese and Chinese font support.] + +Adobe Systems, Inc., _Adobe-Japan1-4 Character Collection for +CID-Keyed Fonts_, Adobe Developer Support Technical Note #5078. +2000. +http://partners.adobe.com/asn/developer/PDFS/TN/5078.CID_Glyph.pdf +[The Adobe Japanese character set.] + +Adobe Systems, Inc., _Adobe-GB1-4 Character Collection for +CID-Keyed Fonts_, Adobe Developer Support Technical Note #5079. +2000. +http://partners.adobe.com/asn/developer/pdfs/tn/5079.Adobe-GB1-4.pdf +[The Adobe Chinese GB (simplified) character set.] + +Adobe Systems, Inc., _Adobe-CNS1-3 Character Collection for +CID-Keyed Fonts_, Adobe Developer Support Technical Note #5080. +2000. +http://partners.adobe.com/asn/developer/PDFS/TN/5080.CNS_CharColl.pdf +[The Adobe Chinese CNS (traditional) character set.] + +Adobe Systems Inc., _Supporting the DCT Filters in PostScript Level +2_, Adobe Developer Support Technical Note #5116. 1992. +http://www.adobe.com/supportservice/devrelations/PDFS/TN/5116.PS2_DCT.PDF +[Description of the DCTDecode filter parameters.] + +Adobe Systems Inc., _Open Prepress Interface (OPI) Specification - +Version 2.0_, Adobe Developer Support Technical Note #5660. 2000. +http://partners.adobe.com/asn/developer/PDFS/TN/5660.OPI_2.0.pdf + +Adobe Systems Inc., CMap files. +ftp://ftp.oreilly.com/pub/examples/nutshell/cjkv/adobe/ +[The actual CMap files for the 16-bit CJK encodings.] + +Adobe Systems Inc., Unicode glyph lists. +http://partners.adobe.com/asn/developer/type/unicodegn.html +http://partners.adobe.com/asn/developer/type/glyphlist.txt +http://partners.adobe.com/asn/developer/type/corporateuse.txt +http://partners.adobe.com/asn/developer/type/zapfdingbats.txt +[Mappings between character names to Unicode.] + +Adobe Systems Inc., OpenType Specification v. 1.4. +http://partners.adobe.com/public/developer/opentype/index_spec.html +[The OpenType font format spec.] + +Aldus Corp., _OPI: Open Prepress Interface Specification 1.3_. 1993. +http://partners.adobe.com/asn/developer/PDFS/TN/OPI_13.pdf + +Anonymous, RC4 source code. +ftp://ftp.ox.ac.uk/pub/crypto/misc/rc4.tar.gz +ftp://idea.sec.dsi.unimi.it/pub/crypt/code/rc4.tar.gz +[This is the algorithm used to encrypt PDF files.] + +T. Boutell, et al., "PNG (Portable Network Graphics) Specification, +Version 1.0". RFC 2083. +[PDF uses the PNG filter algorithms.] + +CCITT, "Information Technology - Digital Compression and Coding of +Continuous-tone Still Images - Requirements and Guidelines", CCITT +Recommendation T.81. +http://www.w3.org/Graphics/JPEG/ +[The official JPEG spec.] + +A. Chernov, "Registration of a Cyrillic Character Set". RFC 1489. +[Documentation for the KOI8-R Cyrillic encoding.] + +Roman Czyborra, "The ISO 8859 Alphabet Soup". +http://czyborra.com/charsets/iso8859.html +[Documentation on the various ISO 859 encodings.] + +L. Peter Deutsch, "ZLIB Compressed Data Format Specification version +3.3". RFC 1950. +[Information on the general format used in FlateDecode streams.] + +L. Peter Deutsch, "DEFLATE Compressed Data Format Specification +version 1.3". RFC 1951. +[The definition of the compression algorithm used in FlateDecode +streams.] + +Morris Dworkin, "Recommendation for Block Cipher Modes of Operation", +National Institute of Standards, NIST Special Publication 800-38A, +2001. +[The cipher block chaining (CBC) mode used with AES in PDF files.] + +Federal Information Processing Standards Publication 197 (FIPS PUBS +197), "Advanced Encryption Standard (AES)", November 26, 2001. +[AES encryption, used in PDF 1.6.] + +Jim Flowers, "X Logical Font Description Conventions", Version 1.5, X +Consortium Standard, X Version 11, Release 6.1. +ftp://ftp.x.org/pub/R6.1/xc/doc/hardcopy/XLFD/xlfd.PS.Z +[The official specification of X font descriptors, including font +transformation matrices.] + +Foley, van Dam, Feiner, and Hughes, _Computer Graphics: Principles and +Practice_, 2nd ed. Addison-Wesley, 1990, ISBN 0-201-12110-7. +[Colorspace conversion functions, Bezier spline math.] + +Robert L. Hummel, _Programmer's Technical Reference: Data and Fax +Communications_. Ziff-Davis Press, 1993, ISBN 1-56276-077-7. +[CCITT Group 3 and 4 fax decoding.] + +ISO/IEC, _Information technology -- Lossy/lossless coding of bi-level +images_. ISO/IEC 14492, First edition (2001-12-15). +http://webstore.ansi.org/ +[The official JBIG2 standard. The final draft of this spec is +available from http://www.jpeg.org/jbighomepage.html.] + +ISO/IEC, _Information technology -- JPEG 2000 image coding system -- +Part 1: Core coding system_. ISO/IEC 15444-1, First edition +(2000-12-15). +http://webstore.ansi.org/ +[The official JPEG 2000 standard. The final committee draft of this +spec is available from http://www.jpeg.org/JPEG2000.html, but there +were changes made to the bitstream format between that draft and the +published spec.] + +ITU, "Standardization of Group 3 facsimile terminals for document +transmission", ITU-T Recommendation T.4, 1999. +ITU, "Facsimile coding schemes and coding control functions for Group 4 +facsimile apparatus", ITU-T Recommendation T.6, 1993. +http://www.itu.int/ +[The official Group 3 and 4 fax standards - used by the CCITTFaxDecode +stream, as well as the JBIG2Decode stream.] + +B. Kaliski, "PKCS #5: Password-Based Cryptography Specification, +Version 2.0". RFC 2898. +[Defines the padding scheme used with AES encryption in PDF files.] + +Christoph Loeffler, Adriaan Ligtenberg, George S. Moschytz, "Practical +Fast 1-D DCT Algorithms with 11 Multiplications". IEEE Intl. Conf. on +Acoustics, Speech & Signal Processing, 1989, 988-991. +[The fast IDCT algorithm used in the DCTDecode filter.] + +Microsoft, _TrueType 1.0 Font Files_, rev. 1.66. 1995. +http://www.microsoft.com/typography/tt/tt.htm +[The TrueType font spec (in MS Word format, naturally).] + +V. Ostromoukhov, R.D. Hersch, "Stochastic Clustered-Dot Dithering", +Conf. Color Imaging: Device-Independent Color, Color Hardcopy, and +Graphic Arts IV, 1999, SPIE Vol. 3648, 496-505. +http://diwww.epfl.ch/w3lsp/publications/colour/scd.html +[The stochastic dithering algorithm used in Xpdf.] + +P. Peterlin, "ISO 8859-2 (Latin 2) Resources". +http://sizif.mf.uni-lj.si/linux/cee/iso8859-2.html +[This is a web page with all sorts of useful Latin-2 character set and +font information.] + +Charles Poynton, "Color FAQ". +http://www.inforamp.net/~poynton/ColorFAQ.html +[The mapping from the CIE 1931 (XYZ) color space to RGB.] + +R. Rivest, "The MD5 Message-Digest Algorithm". RFC 1321. +[MD5 is used in PDF document encryption.] + +Thai Industrial Standard, "Standard for Thai Character Codes for +Computers", TIS-620-2533 (1990). +http://www.nectec.or.th/it-standards/std620/std620.htm +[The TIS-620 Thai encoding.] + +Unicode Consortium, "Unicode Home Page". +http://www.unicode.org/ +[Online copy of the Unicode spec.] + +W3C Recommendation, "PNG (Portable Network Graphics) Specification +Version 1.0". +http://www.w3.org/Graphics/PNG/ +[Defines the PNG image predictor.] + +Gregory K. Wallace, "The JPEG Still Picture Compression Standard". +ftp://ftp.uu.net/graphics/jpeg/wallace.ps.gz +[Good description of the JPEG standard. Also published in CACM, April +1991, and submitted to IEEE Transactions on Consumer Electronics.] + +F. Yergeau, "UTF-8, a transformation format of ISO 10646". RFC 2279. +[A commonly used Unicode encoding.] |