0.2 (95-dec-12) --------------- First public release. 0.3 (96-jan-13) --------------- LZW patent workaround. Implemented inline images. Fixed (mostly) disjoint polygon fills. Added remote server stuff. Added page number on command line. Fixed problem with font encodings which caused character misalignment. Fixed inverted CCITT decoding and inverted image mask drawing. Now compiles under gcc 2.7.x (ignore those stupid 'unused parameter' warnings). Many minor bug fixes and optimizations. 0.4 (96-apr-24) --------------- Implemented DCT filter. Implemented PostScript output; wrote pdftops program. Implemented links. Implemented font rotation -- I was wrong: X11R6 servers *do* support font rotation (by specifying a matrix in place of a size). Added bindings for Home/End, Page Up/Down, arrow keys. Added initialZoom resource and -z option. Added geometry resource and -g option. Fixed image size off-by-one bug. Fixed bug where page content is reference to an array of streams. Cleaned up uninitialized variables which were causing random problems on various platforms. Manually skip whitespace before calling atoi() for startxref. Replaced calls to XrmCombineFileDatabase() with calls to XrmGetFileDatabase() and XrmMergeDatabases() so it will work under older versions of X. Fixed problem with reading multiple xref tables in updated PDF files. Check for encryption and print appropriate error message. Rudimentary dithering of images. Fixed bug in CCITTFax filter (pass mode followed by horizontal mode). Optimized drawImage() and drawImageMask(). Changed several things to ease porting: - changed '__inline' to 'inline' (to adhere to the ANSI standard) - surrounded interface/implementation pragmas with #ifdef _GNUC__ - got rid of empty array initializer lists - moved Operator type definition from Gfx.cc to Gfx.h - renamed String, uint, etc. - ability to uncompress to file (NO_POPEN and USE_GZIP flags) - added definitions of XK_Page_Up/Down and XPointer for old versions of X For VMS port: - use correct Xdefaults name for VMS, get rid of ltkGetHomeDir() - added '#include ' before all X includes - renamed files with multiple periods in their names Fixed window resizing infinite oscillation bug. Fixed problem with string-type (as opposed to stream-type) indexed color space lookup tables (which are used in inline images). If an X font is not found, try smaller and then larger sizes (this is useful for old or broken X servers which can't scale bitmap fonts). Added -rgb (color cube size) option. Various minor bug fixes. 0.5 (96-may-23) --------------- Fixed bug in LTKWindow which broke the remote server mode. Fixed PostScript output: - doesn't seg fault if file is unwritable. - incorrect DSC comment - need colon in '%%Page:'. - use 'imagemask' command for masks. - output filters in the correct order. - Stream::isBinary() checks the next-to-bottom, not top, stream. - if page width > height, rotate it 90 degrees. - if page is larger than paper size, scale it down. Set default MediaBox to 8.5" x 11" to deal with non-compliant PDF files which don't specify a MediaBox. Added DEBUG_MEM stuff in gmem.c and gmempp.cc. Fixed memory leaks: - LTKWindow didn't delete the LTKBox. - LinkAction needs a virtual destructor. Use $(RANLIB) variable in goo/Makefile and ltk/Makefile. Allocate image data after calling XCreateImage, using image->bytes_per_line -- works in 24-bit mode now. DCTStream rounds width of rowBuf lines up to the next multiple of mcuWidth, so last MCU doesn't run off end of buffer. Increase size of block (from 255 to 1024 bytes) read at end of file to search for 'startxref'. Skip past garbage at start of file, look for '%PDF'. Moved more compiler options out of Makefiles into Makefile.config. Top-level Makefile uses '$(MAKE)' instead of 'make' for making subdirectories. Space/PageDown/Next and Backspace/PageUp/Previous now moves to next/previous page if already scrolled to bottom/top of current page. 0.5a (96-jul-09) ---------------- [not a public release] For PDF 1.2 (a.k.a. Amber, a.k.a. Acrobat 3) support: - look for trailer after first xref instead of at end of file. Deal with font subsets by converting character names of the form 'Cnnnn' to the appropriate character from the standard encoding. Extract encoding from embedded Type 1 fonts. Kludge to fill one-pixel thick polygons. Changed X font encoding to use endash for hyphen (gets rid of too-long hyphens). Handle Resources key in Pages dictionaries (needed for pstoedit output). Fix comment handling in Parser (needed for pstoedit output). Move Bezier curve conversion from GfxState to XOutputDev; look at flatness parameter in GfxState. Change all of the path functions in XOutputDev (stroke, fill, clip) to use the same path transformation/conversion function. Rewrote PostScript output driver as a subclass of OutputDev; removed duplicated code (ps_ functions) from Gfx. Fixed bug in xref code with small (< 1024 bytes) PDF files. Implemented BX/EX operators. Added PDFDoc class. 0.6 (96-nov-12) --------------- Add support for PostScript output to stdout (-) and to a command (|lpr); added -ps option and psFile resource. Decryption is implemented but not included in the distribution due to legal restrictions: the decryption algorithm is a trade secret of RSA, Inc., and the U.S.A. still has bogus export controls on cryptography software. Added .xpdfrc config file: - Added fontmap parameter: user can map PDF font names to X fonts. - Added fontpath parameter: search for Type 1 font if encoding is not in PDF file. Incremental display: display is updated after every 200 commands. Added forward and backward by-10-page buttons. Links: - Implement links with "Launch" actions that point to PDF files. - Draw borders around links. - Handle links with named destinations. - GoToR links specify a page number instead of a page reference. Optimizations: - Rewrote Stream to use buffering, and added lookChar() functions; rewrote Lexer to take advantage of this. - Use hash tables for name->code mapping in font encodings. - Made XOutputDev::doCurve() iterative, changed /2 to *0.5, and changed the flatness test. Added file name to window title. Implemented RunLength filter. Implemented forms. Convert ObjType to an enum. Changed isDict("Pages") to isDict() (in Catalog.cc) to deal with incorrect PDF files. Changed color selection so that very pale colors don't map to white. Fixed bug in CCITTFax filter (multiple make-up codes). In GString::clear(): need to set length to 0 before calling resize(). Base initial window size on first displayed page, not page 1; deal correctly with rotated pages. Added ltkGetIntResource() and LTKApp::getIntResource(). PostScript output fixes: - Escape backslashes in strings. - When doing ASCII85 encoding, keep both chars of EOF marker ('~>') on same line. - Add extra line '%-EOD-' after image data streams; call wrapper functions for image and imagemask which look for this line -- this should fix the 'too much data in stream' bug. - Font tags can be reused for different fonts on different pages -- so use font object reference (number/generation) instead. Initialize character widths to zero (this caused crashes on OSF/1). Handle image masks which go outside of pixmap. Makefile.config changes: - Remove -o in C++ compile rule. - Add $(AR) variable. Code which read char widths from font dictionary read all but the last width. Add 'return 0;' to main() in xpdf and pdftops. Allow fonts to use StandardEncoding. Convert man pages to VMS help files. 0.7 (97-may-28) --------------- Implemented FlateDecode filter (for PDF 1.2). Basic xref table reconstruction for damaged files New pdftotext program converts PDF to plain text. Implemented menus in LTK; added a menu to xpdf. Added open and save functions; allow xpdf to start without any PDF file. Implemented text find. Implemented text select/copy. Change mouse cursor when it's over a link. Embed Type 1 fonts in PostScript output. Moved rotate functions to menu; added quit to menu. Fixed stroke color bug in PostScript output (was using fill color instead of stroke color; this sometimes caused lines to be missing (white) in PostScript output). Support Launch-type links -- pops up a dialog before executing anything. Expects the A (action) dictionary to contain a Unix dictionary with F (file) and P (paremeter) keys just like the Win dictionary. A moveto op all by itself should just be discarded, instead of generating a subpath with one point (this was causing seg faults). Balanced parentheses in strings don't need to be escaped. Tj operator in PostScript prolog didn't check for zero when dividing by length of string. Implemented selection in LTK; TextIn widgets support dragging/copy/ paste. Handle font subsets that use hex character codes. Added icon pixmap; added the XPMLIB and NO_XPM variables to Makefile.config. Fixed subtle bug in use of horizontal scaling parameter (it affects only the width of drawn characters, not positioning done in text space). Memory testing (with DEBUG_MEM): - gmalloc now fills memory blocks with garbage to catch unitialized fields. - gfree fills memory blocks with garbage to catch uses of freed blocks. Handle image masks which go off the pixmap on the top and/or left. Fixed inline functions which had two return statements (to make the HP, SCO, and other cfront-based compilers happy). Fixed bug which caused seg faults when following a link to a different file (info in LinkGoto object was used after link was deleted by loadFile). If page content is an array of streams, the streams are concatenated; objects and commands can span multiple streams. If file open fails, try lower-casing and upper-casing the file name. Commands should end when lexer sees a '/' character. GString::append(char *, int) was broken. Changed LTKScrollingCanvas redraw to be more efficient: copy as much as possible from window before copying from off-screen pixmap. Ignore gs (set extended graphics state) operator. Handle colorspaces (CalGray/RGB are treated as DeviceGray/RGB; the weird colorspaces are not yet implemented). Named destinations (for links) can be strings as well as names; deal with the names tree in the catalog. Clip to the page CropBox. Added '-q' to gzip options (to suppress warnings, in case user has -v in GZIP env var). Added 'include Makefile.config' to top-level Makefile. Added INSTALL variable to Makefile.config; used in top-level Makefile. Always initialize LinkDest left/bottom/top/right/zoom fields (bogus floating point values were causing crashes on Alpha). Added Makefile.config options for Digital Unix (DEC compilers), HP-UX (HP compilers), SCO Unix, and Evans & Sutherland ES/OS. Added flag to set stream mode in fopen call for VMS. Rewrote Link module. Pages with no contents shouldn't cause an error message. In PostScript output: pdfImM needs to set fill color before doing imagemask. If font doesn't specify character widths, use widths from built-in font, based on font flags. Fixed LTK scrollbar to delay before repeating and to control the period between repeats. Removed window/widget copy() methods (they were untested and unused). Unknown filter types produce a single error message instead of a stream of errors. Added a dummy target in top-level Makefile so making individual executables (e.g., 'make pdftops') should now work. Added optional xpdf-flip.ltk with buttons on right side instead of bottom of window. 0.7a (98-feb-22) ---------------- Moved find command from menu to toolbar button ('f' key still works). Support TrueColor visuals. Added a -cmap option and a installCmap resource to install a private colormap. Mouse button 2 pans the window. Selecting a URI link now executes a configurable command (from the urlCommand resource). Added a "link info" display which shows the URL or file for the link under the mouse. Don't draw (or convert to PostScript) text drawn in render modes 3 and 7 -- this is invisible text, used by Acrobat Capture; this text is still passed to the TextPage object so that selection works. Recognize (and quietly ignore) marked content operators (BMC, BDC, EMC, MP, DP). Recognize new color-setting operators (scn, SCN). Added A4_PAPER option. Embed external Type 1 font files (this currently only works with PFA files). Added "-level1" option (in xpdf and pdftops) to generate Level 1 PostScript. Setup autoconf -- replaced Makefile.config. Added SELECT_TAKES_INT flag, and use configure to autodetect (for HP-UX). Fixed appendToPath() to behave reasonably when appending ".." to root directory. Fixed array size in FlateStream::compHuffmanCodes() (was causing xpdf to crash under OSF/1). ASCII85Stream, ASCIIHexStream, and DCTStream didn't check for EOF and could run past the end of the stream in damaged files. Handle hex escapes (#xx) in names. Still allow the name /# for backward-compatibility. Check for NULL characters in encoding array in GfxFont.cc (was calling strcmp() with NULL which crashed under Solaris). PageAttrs::PageAttrs() didn't initialize crop box boundaries. Changed uses of lookup() to lookupNF() in XRef.cc. Fixed type checking of operators which take a variable number of args. Gfx::buildImageStream() doesn't need to check for parser (since I got rid of the bogus array-of-command thing). XOutputFont matches on font reference instead of font tag (similar to PSOutputDev fix). Fixed bug in position calculation for multi-char substitutions in XOutputDev. Cleaned up local variables which hid class variables. Optimized variable length decoding in CCITTFaxStream. Set link border width to zero if Border dictionary entry is missing. Throw away zero-length strings in TextOutputDev -- they don't have valid xMin/xMax values. Swapped order of XLIBS and XPMLIB in xpdf/Makefile. Deleted 'LTKApp::' in function declaration in LTKApp.h. Changed '(XKeyEvent *)&event' to '&event.xkey' in LTKApp.cc. Check that the link rectangle coordinates are in the correct order, and swap if necessary. TextOutputDev didn't set text to NULL, which caused pdftotext to segfault if it couldn't open it's output file. Fixed a hash table search bug in GfxFontEncoding::getCharCode(). Cleaned up colorspace code: rewrote GfxColorSpace and added GfxImageColorMap; cleaned up PSOutputDev::doImage. Handle named colorspaces in images. Correctly set the default color after a colorspace change. Old setcolor operators now set the colorspace. Fixed bug with uncompressed blocks in FlateStream. Fixed bug with fixed Huffman code table in FlateStream. Added hash table of X windows (for LTKWindow and LTKWidget) to LTKApp and replaced calls to XQueryTree with hash table searches -- this avoids a roundtrip to the server for each event and also fixes the problem where XQueryTree crashed if the window no longer existed (with leftover events from a destroyed window). (Thanks to Yair Lenga for the suggestion.) Create a new GC for selection -- xor black and white (instead of LTK foreground and background). Fixed crash with blank lines in .xpdfrc. Allow spaces in font descriptors in fontmap lines in .xpdfrc. Check for bogus object number in XRef::fetch(). Use MacRomanEncoding for TrueType fonts that don't specify an encoding. Certain PDF generators apparently don't include FontDescriptors for Arial, TimesNewRoman, and CourierNew -- set GfxFont flags appropriately. Fixed a bug in width guessing in GfxFont -- sans serif and serif were swapped. Rewrote XRef::readXRef() to avoid using a parser to read the xref entries. Added NO_TEXT_SELECT option. Ignore APPn/COM/etc. markers in DCT streams. Replaced select() with XMultiplexInput() in LTKApp.cc for VMS. Handle WM_DELETE_WINDOW protocol -- if you ask the window manager to delete the xpdf window, xpdf will exit cleanly; other windows/dialogs are simply closed. Optimized DCT decoder; switched to integer arithmetic. The "/Type /Annots" field in an annotation dictionary is optional. Check for null nameTree in Catalog::findDest(). In XOutputDev, search user font map before default font map. Added "normal" SETWIDTH parameter to all font descriptors in XOutputDev (some systems have a narrow-width Helvetica font). Added FOPEN_READ_BIN and FOPEN_WRITE_BIN to support Win32. Added a hack which allows better font substitution for some Type 3 fonts. Also allow character names of the form /nn and /nnn. Added and to LTKApp.cc (needed by AIX and IRIX for bzero() declaration for FD_ZERO). 0.80 (98-nov-27) ---------------- Support for some Japanese fonts (Type 0 fonts using the Adobe-Japan1-2 character collection, horizontal only). Added pdfinfo application. Added pdftopbm application. Added pdfimages application. Added -papercolor option and .paperColor resource. Fixed divide-by-zero problem in XOutputDev Type 3 font matrix kludge. Font subset char names can be 'Bxx' as well as 'Cxx' and 'Gxx'. Fixed bug in color space conversion in DCTStream filter (YCC->RGB was correct, YCCK->CMYK was broken). Added XRef::getDocInfo() and PDFDoc::getDocInfo() to support pdfinfo. Optimized GfxImageColorMap. Lexer::getStream(), getPos(), and setPos() check for null stream. Decryption code now does strings as well as streams. ASCII85 decoder rounds short tuples up instead of down. CropBox and MediaBox can be non-integers. PostScript output: - Use a rectangle operator. - Call setpagedevice with page size. - Insert %%PageOrientation comments. - Add paper size flags (-paperw and -paperh) to xpdf and pdftops. - If HAVE_POPEN is not defined, and user tries to print to '|...', the PSOutputDev destructor tried to write to the PS file. - Added support for forms (pdftops -form). Removed error messages for empty paths in stroke, fill, etc. operators. Don't allow flatnesses less than 1 in XOutputDev (this speeds up rendering a little bit when there are lots of tiny curves). Moved the font subset character name guessing from GfxFont to XOutputDev and TextOutputDev - now these files print correctly. Cast argument to XFree() to XPointer; add XPointer definition where necessary (portability fixes). Various minor VMS fixes. Changes to configure script and Makefiles: - Print a warning if X is missing. - Use C++ when checking select() argument type (HP-UX). - Use 0 instead of NULL when checking select(). - Default to gcc instead of c++. - Get rid of AC_C_INLINE -- this is meant for C, not C++. - Changed -USE_GZIP to -DUSE_GZIP. - Added ability to compile ouside of the source tree. - Added .cc.o rule to {goo,ltk,xpdf}/Makefile.in. - Added @LIBS@ to XLIBS in xpdf/Makefile.in. - In top-level Makefile.in: added '-' to clean commands; added distclean rule. - Create install directories. - Use INSTALL_DATA (instead of INSTALL) for man pages. - Changed xpdf-ltk.h rule to avoid leaving an empty file when ltkbuild fails. - Change things so that by default, ltkbuild is not built and xpdf-ltk.h is not rebuilt. - Use AM_PROG_CC_STDC to add compiler flags for ANSI C. - Modify autoconf's builtin macros to check for xlC. - Use Steve Robbins' smr_CHECK_LIB to test for pixmap library (Xpm) -- this should fix the problems on systems that have the library but not the include file. - Added better test for sys/select.h, sys/bsdtypes.h, strings.h, bstring.h. - New VMS make scripts from Martin P.J. Zinser. - Moved dependences into Makefile.in -- this gets rid of problems with 'cc -MM' (which is gcc-specific) and 'include Makefile.dep' (which isn't supported by all make implementations). Also changed all non-system include files to '#include "..."' (from '<...>'). Tweaked the TextOutputDev heuristics slightly. Modify Gfx to use a stack of resources -- this is necessary for Form XObjects, which can define their own local resources; also modified PSOutputDev to dump fonts used by forms. Look for excessively large MediaBox (compared to CropBox) and shrink it to CropBox. Minor fix to scrolling when dragging a selection. Various patches for pdftex and Win32 support. Deal with Separation colorspaces by using their alternate colorspace entry. Added PBMOutputDev for pdftopbm application. Added ImageOutputDev for pdfimages application. Separated XOutputDev into LTKOutputDev + XOutputDev. Added support for 1-D and mixed 1-D/2-D (Group 3) decoding to CCITTDecode filter. Added resetImage(), getImagePixel(), and skipImageLine() to Stream class; used these in XOutputDev, PSOutputDev, and ImageOutputDev. Implemented predictor for LZW and Flate filters. In pdfImM1 in PSOutputDev prolog: div should be idiv. Changed output from printUsage() function in parseargs to look nicer. 0.90 (99-aug-02) ---------------- Added Type 1/1C font rendering, using t1lib. Added "backward" and "forward" buttons. Added fit-page and fit-page-width zoom factors; replaced zoom-in and zoom-out buttons with a zoom popup menu. Type 1C fonts are converted to Type 1 and embedded in PostScript. Support vertical Japanese text. Added Japanese text support (EUC-JP) to pdftotext. Bumped PDF version to 1.3. Added stub functions for ri and sh operators. (But there are still some missing 1.3 features.) Added -raw option to pdftotext. Minor changes to allow compiling under MS Visual C++ 5.0. Top-level makefile: changed 'mkdir -p' to '-mkdir -p'. Configure script: added X_CFLAGS to smr_CHECK_LIB(Xpm). Added Xpm_CFLAGS to xpdf/Makefile.in (this is needed to get the -I for the xpm includes). Rewrote code that handles font encodings; added support for Type 1C fonts. In the setpagedevice dictionary in PostScript output - added a /Policies entry which tells the PS interpreter to scale the page to fit the available paper. Changed PageUp behavior slightly: move to bottom (instead of top) of previous page. TextPage used character's dx (width + char space) instead of just its width. Read base URI from document Catalog (for URI-type links). Minor change to configure script to avoid using 'unset'. Fixed bugs in CropBox inheritance. Fixed a bug in resource stack handling for form objects. Display forms even if they have a missing/incorrect FormType. Fixed a bug in stream predictors -- the predictor parameters (width, comps, bits) don't need to match the actual image parameters. Completely rearranged the predictor code. Fixed PostScript output to correctly handle stream predictors. Don't segfault on empty (zero-page) documents. Added the xpdf.viKeys feature. Added the ffi and ffl ligatures to XOutputDev and TextOutputDev. Pdftotext and pdfimages now check okToCopy(). Added a '-q' flag to all programs (except pdfinfo) to suppress messages and errors. Deal with DeviceN colorspaces by using their alternate colorspace entry. Change PostScript output so setpagedevice is only called once, at the very beginning of the document (to avoid problems on duplex printers). Changes to configure script and makefiles for DOS/DJGPP. FontEncoding::getCharCode() looked for (code>0) instead of (code>=0). Added keypad arrow keys, etc. to xpdf. Minor changes to gfile.{h,cpp} () to compile under VC++. Fixed CCITTFaxStream to correctly handle all parameters. Modifications to gfile.{h,cc} for Acorn. Some minor changes for OS/2. Added 'SHELL = /bin/sh' to Makefiles. Compare file version to pdfVersionNum+0.0001 to avoid floating point precision problems. Added LDFLAGS to Makefiles. Removed strip entirely from configure and Makefiles. Fixed a bug in choosing the correct DCTStream color transform. 0.91 (2000-aug-14) ------------------ Added TrueType font rendering, using FreeType. Support for Chinese fonts (Type 0 fonts using the Adobe-GB1-2 character collection). Decryption code is included with the main distribution (now that the US export regulations are a little bit less irrational). Added (very basic) support for generating PostScript with Japanese fonts -- only tested with ghostscript so far. Added support for generating EPS files (pdftops -eps). Much-improved image filtering in xpdf (for downsampling and for transforms other than 0/90/180/270-degree rotations). Implemented a basic full-screen (presentation) mode (xpdf -fullscreen). (There is currently no way to switch between window and full-screen modes on the fly -- this will be fixed in a later release.) Added "reload" menu item. Do a better job with anti-aliased Type 1 fonts on non-white backgrounds. Handle Lab color spaces. Handle non-null user passwords. Avoid security hole with tmpnam()/fopen() -- added openTempFile() in goo/gfile.cc. [Thanks to Joseph S. Myers for pointing this out.] Filter out quote marks (' and ") in URLs before running urlCommand to avoid a potential security hole. [Thanks to Frank Doepper for pointing this out.] Fixed TrueColor detection to look at the complete list of available visuals, not just the default visual. In gfile.h, changed NAMLEN(dirent) macro to NAMLEN(d). Removed copyright character from start-up banners. In the open and save dialogs, if the open/save button is pressed with no file name, the dialog is not canceled. Added Xpm_CFLAGS to ltk/Makefile. XOutputDev::updateLineAttrs was using dashLength before it was defined. In top-level Makefile.in, use INSTALL_PROGRAM instead of INSTALL. In man page, recommend -q instead of -err in .mailcap. Changes for GNOME / Bonobo support: - Separated Stream classes into BaseStream and FilterStream trees. - Got rid of all FileStream-specific stuff. - Added a PDFDoc constructor that takes a BaseStream* instead of a file name. Allow newlines inside strings (Photoshop does this). Don't require whitespace between tokens in consecutive content streams (for pages that specify an array of streams). Look at MissingWidth when constructing font character widths array. Fixed a bug that caused incorrect PostScript output for images that use 8-bit indexed color spaces with < 256 colors in the palette. Handle case where embedded font file is bad (this was seg faulting). Minor changes for Windows/pdftex. Work around a bug in PDF files from the IBM patent server. Fixed bugs in PostScript form generation: use pdfStartPage instead of pdfSetup; problem with inline images. Minor bug fix in FlateStream::loadFixedCodes(). Added %%DocumentMedia and %%PageMedia comments to the PostScript so that gsview (a Windows frontend for ghostscript) gets the right paper size. Draw AcroForm fields that have appearance annotations. Bounds check gray, CMYK, and RGB values (in GfxColor). Moved the link border drawing code into Page (from PDFDoc). Minor modifications for pdftohtml. PSOutputDev: use the Type 3 font scaling kludge from XOutputDev. Separation color spaces were handled incorrectly in images. Fixed a bug with form bounding boxes. Modified the t1lib support -- replace libt1x code with my own code. Type 1 and TrueType fonts are now handled similarly, and clipping works on Type 1 fonts. Don't print copyright banner (xpdf); add -v switch to get copyright and version info (all apps); get rid of -err switch (xpdf). Automatically reload the PDF file if it has been changed, i.e., if the modification time is different. Fixed a memory (malloc size) bug in CCITTFaxStream. Fixed two bugs in FontEncoding::hash() -- handle zero-length character names (which were found in a (buggy?) PDF file), and handle character names with high-bit-set characters (use unsigned ints). Added PDFDoc::isLinearized() and corresponding code in pdfinfo.cc. Handle files with an incorrect page count in the Pages dictionary (FOP, from the Apache project produces a page count of 0). Handle TrueType equivalents to the Base14 fonts (Arial, TimesNewRoman, CourierNew) -- Adobe's tools use these names without embedding the fonts. Tweaked the Type 3 font sizing kludge. Changed pdfimages (ImageOutputDev) so it doesn't output JPEG files for 4-component color spaces, since these seem to confuse most image viewers. Added support for generating OPI comments (pdftops -opi). In XOutputDev::drawImage() and drawImageMask(), check for images that are completely off-page. Use the provided alternate or a default (DeviceGray/RGB/CMYK) color space for ICCBased color spaces. Incorporated MacOS-specific code from Leonard Rosenthol. Configure script switches to C++ for the strings.h/bstring.h test. Gfx::opRestore() calls clearPath() to handle (apparently) buggy PDF files produced by FreeHand. The /Type field in most dictionaries is optional (PDF 1.3 change). Move printCommands variable definition into Gfx.cc. If page is smaller than paper, center the PostScript output. Fix a minor bug in the SELECT_TAKES_INT detection in the configure script. TextOutputDev filters out control characters. Changed enough occurrences of 'char *' to 'const char *' to keep gcc 2.95 from barfing. Support for Latin-2 and Latin-5 in pdftotext (however, this will only work if the PDF file contains correct font encodings, which seems to be rare). TextOutputDev converts "eightoldstyle" to "eight", etc. Don't use the return value from sprintf() -- most systems return the length, but some return the string. Minor fixes for SunOS 4. Configure script looks for both select() and fd_set in sys/select.h. Configure script checks for gethostbyname() in -lbsd (for LynxOS). Fix missing closepath bug in PostScript output. Change PostScript portrait/landscape mode selection so it only uses landscape if the page width is greater than the paper width. Tweaked the VMS code in makePathAbsolute(). 0.91a (2000-oct-11) ------------------- Implemented separable CMYK PostScript output (the -level1sep switch to pdftops). Implemented Pattern color spaces with tiling patterns (polygon fills only). Implemented Stamp annotations. Implemented Named link actions. Fixed a really dumb bug in the TrueColor code in SFont (which affects both Type 1 and TrueType font rendering on 16-bit displays). Rewrote the GfxColorSpace / GfxColor code. Switched from djgppcfg to dj_make.bat (from Michael Richmond). Bug in the Type 1 encoding parser -- couldn't handle lines of the form 'dup NNN/name put' (with no space between the code and the name). Fixed the mkstemp() test in configure.in -- switched from AC_TRY_COMPILE to AC_TRY_LINK and added . Added DESTDIR to top-level Makefile.in. Fixed an incorrect OPI comment in PSOutputDev. Minor tweak to the CCITTFax code to avoid writing past the end of an array on an invalid data stream. Xpdf crashed if the user selected 'reload' when no document was loaded. Look for character names of the form "xx" (two hex digits with no leading alphabetic char) and 'cNNN' (decimal digits with a leading alphabetic char that happens to be a hex digit). FlateStream didn't correctly handle zero-length streams. Xref reconstruction didn't handle the case where the opening "<<" immediately followed "trailer" with no intervening whitespace. Fix the %%DocumentSuppliedResources comment in EPS output. Scale annotations to fit their rectangles. Added Stream::close() to handle cases (e.g., patterns) where a Stream object is used multiple times before it is deleted. Added the topLevel arg to Gfx::go() so it doesn't call out->dump() for every pattern element (and form). Rearranged the GfxResources class. Clean up white space handling in Lexer. Make the dpi parameter to PDFDoc::displayPage etc. a double - this avoids margin gaps with fit-page and fit-width. Fix a rounding problem in xpdf.cc that was causing the window to sometimes be one pixel too small. Fixed a minor bug in dealing with Base-14 TrueType font names. Fixed Lab -> RGB color space conversion. Added support for opacity values (from PDF 1.4) to GfxState and OutputDev. [Thanks to Leonard Rosenthol.] Implemented type 2 functions; rearranged the Function class hierarchy. 0.91b (2000-oct-29) ------------------- Print a warning about Type 3 fonts (XOutputDev, PSOutputDev). Added the scroll lock behavior to 'n' and 'p' keys in xpdf. Change FileStream buffer size to a #define'd constant. Renamed Pattern to GfxPattern to avoid clashes with Windows and MacOS types. Added CNS (Big5) Chinese font support (CHINESE_CNS_SUPPORT); renamed CHINESE_SUPPORT to CHINESE_GB_SUPPORT. 0.91c (2000-nov-19) ------------------- Fix an endianness problem in the Type 1 font code which resulted in an incorrect display with "-t1lib plain" on big-endian systems. CCITTFax stream decoder will skip over extra zero bits at end of line, even if EncodedByteAlign flag wasn't set. Added Big5 support to pdftotext (with CHINESE_CNS_SUPPORT enabled). Fixed a typo in the CNS/Big5 encoding translation table. Change the form code in PSOutputDev to store images in arrays of strings. The xref reconstruction (for damaged files) now also looks for 'endstream' tags, and the parser uses this information when setting up stream objects. In pdfinfo, convert Unicode chars in the 00xx range into 8-bit chars; print a warning if there are any other Unicode chars. 0.92 (2000-dec-03) ------------------ Fixed %%BeginResource comment (for xpdf procset) in PostScript output. Added "-title" switch and "xpdf.title" resource to set the window title. Check for in addition to . Upgraded the configure script to smr_macros 0.2.4 - this should fix a bug where configure wasn't correctly finding t1lib. 0.92a (2000-dec-17) ------------------- Added 'extern "C" { ... }' in various places for ANSI C++ compliance. Tweaked the code that figures out DPI for fit-to-page and fit-to-width modes. Fixed the image transformation code in XOutputDev -- no more missing lines. Implemented color key image masking in XOutputDev. 0.92b (2001-jan-07) ------------------- Fixed a bug in the error-checking code in the Separation/DeviceN color space parsing functions. [Thanks to Lidia Mirkin.] Added wheel mouse support (mouse buttons 4 and 5). [Thanks to Thorsten Schreiner.] Added preliminary support for FreeType 2 (disabled by default). 0.92c (2001-jun-04) ------------------- Fixed a bug in the new image transformation code. Look for character names of the form "", instead of looking for names beginning with a few specific letters. T1FontFile::T1FontFile wasn't initializing vars, and ~T1FontFile wasn't checking before calling T1_DeleteFont -- this caused crashes if it tried to open a nonexistent font file. Catalog::Catalog didn't set baseURI to NULL early enough. Tweak the check for strings.h in the configure script. Yet another fix for the image rotation code in XOutputDev -- off-by-one problem when upsampling. Handle Type 1/1C encodings when using FreeType 2. Allow FreeType2 to render user-supplied Type 1 base fonts. Opening a new file from full-screen mode tried to scroll. Fixed a bug in GfxFont constructor (missing check for NULL base font name). Don't crash if a Type 1 font's FontBBox is non-integer. Pdfinfo prints page size. Tweak for the alpha hack in T1Font/TTFont: sample the middle pixel instead of the top-left pixel. Automatically activate the text input widget in the find window. Changed a Japanese char code mapping in XOutputDev and TextOutputDev: period was being incorrectly mapped to small circle (end-of-sentence character). Add the 0/+/-/z/w key bindings to control the zoom setting. Fixed ImageOutputDev (pdfimages) to correctly handle inline image masks. Extract ascent/descent info from font descriptor. 0.92d (2001-jun-26) ------------------- Embed TrueType fonts in PostScript output. (Added a "-noembtt" flag to pdftops.) Extract encoding from TrueType fonts. Moved Function classes to a separate file (Function.h/cc). Implemented multi-dimensional sampled Functions. Implemented Type 4 (PostScript calculator) Functions. For Type 0 fonts, FontDescriptor is in descendant font, not parent. [Thanks to Lidia Mirkin.] Added the "-htmlmeta" option to pdftotext. In TextOutputDev, when computing the number of blank lines to insert, do a sanity check on the result. If both FlateDecode and some other filter (e.g., DCTDecode) were applied to an image stream, getPSFilter() crashed instead of just returning NULL. Handle the /Identity function. 0.92e (2001-aug-23) ------------------- Widths in font dict should override built-in font widths. Changed "rotate left/right" menu items to "rotate clockwise/counterclockwise". The link parsing code choked if the Border array was incorrect (too short). Modified PSOutputDev to output CMYK for fill/stroke colors. 0.93 (2001-oct-25) ------------------ Implement PDF 1.4 (128-bit) decryption. Bump supported PDF version number to 1.4. Text output for Simplified Chinese. [Thanks to Cheung Siu Fai.] Read an app-defaults file for Xpdf. Read a system-wide config file (/etc/xpdfrc) if ~/.xpdfrc doesn't exist. Accept and verify owner password; if correct, allow all actions. Added a "-level2sep" option to pdftops to generate Level 2 separable PostScript. The PostScript separation convention operators are used to handle custom (spot) colors. [Thanks to Thomas Freitag for help on this.] Add support for FreeType 2 to the configure script. Warning: this requires FT 2.0.5 or newer. Fixed the bounding rectangle overlap test in the disconnected subpath fill hack in XOutputDev. Stupid typo in font name table in PSOutputDev. Changing the zoom setting with a keyboard shortcut didn't update the displayed setting. Modified the mouse wheel support and added the second wheel (mouse buttons 6 and 7). [Thanks to Michal Pasternak.] Character and word spacing is affected by horizontal scaling (display and PS output). [Thanks to Eddy Ng.] Rotation specified by the text matrix, character spacing, and horizontal scaling interacted incorrectly (display and PS output). Some broken Type 1/1C fonts have a zero BBox -- kludge around this by assuming a largeish BBox. Handle PDF files with an incorrect (too small) xref table size. Allow "-?" and "--help" as aliases for "-h" (all apps). Correctly handle unescaped parens in strings in Lexer. Fixed a bug in LTK where a menu got posted multiple times if you right clicked while a page was being rendered. Removed a comma inside a string in configure.in. Kludge around broken PDF files that use char 32 but encode it as .notdef instead of space. Clean up various compiler warnings: use constructor args like "fooA" if there is a field named "foo". Everything now compiles cleanly under gcc 2.91.66, 2.95.2, and 3.0.1. Page objects now read all of the page rectangles (MediaBox, CropBox, BleedBox, TrimBox, ArtBox), as requested by the pdfTeX folks. Added a new PDFRectangle struct to hold these. Use XOutputDev's Type 3 font size hack in TextOutputDev too, so it does a little better job of extracting text in Type 3 fonts. Modify pdfimages to write one-bit images as PBM files. Work around a bug in cygwin's implementation of fseek. 0.93a (2001-nov-21) ------------------- Implemented the sh (shaded fill) operator for the axial shading type. Minor fixes to avoid compiler warnings. Cleaned up global variables -- moved many into instance vars and function args. Minor fixes for OS/2. Fix the system config file path for VMS. Fix an uninitialized var in XOutputDev that caused crashes on Alphas. Don't incrementally update the display in full-screen mode. For Type 1/1C fonts, use the FontBBox from the PDF FontDescriptor (instead of the one in the font file) if present -- this avoids problems with fonts that have non-standard FontMatrixes. Add the Euro character to WinAnsiEncoding. Track the bounding box of the clip region to make rendering patterns more efficient. Fix openTempFile() for Win32. 0.93b (2001-dec-11) ------------------- Added a duplex option to PSOutputDev and a -duplex switch to pdftops. Added XRef::PDFgetDocInfoNF() for pdftex project. Updated the VMS build script. 0.93c (2001-dec-12) ------------------- Completely rewrote the code that handles font encodings: - everything is Unicode-based - 16-bit fonts are handled much more cleanly - text output encoding can be set more flexibly New .xpdfrc config files. 1.00 (2002-feb-01) ------------------ More work on the font encoding rewrite: - use the ToUnicode font dict entry - pdfinfo and pdftotext (with '-htmlmeta') convert info strings to the selected text encoding Added key bindings for forward ('v') and backward ('b'). Added the pdffonts program which lists the fonts used in a PDF file. Fixed several problems in the TrueType font embedding code (for PostScript output). Accept named destination on command line. Added several new items to pdfinfo: file size, PDF version, tagged (yes or no), XML metadata (with the -meta option). Pdftops didn't get the portrait/landscape setting correct for PDF files with rotated pages. The TrueTypeFontFile class (including the Type 42 converter) now understands cmap format 6. Improved the "about" window -- mention the GPL, add a list of key bindings. Added Zcaron and zcaron characters to WinAnsiEncoding. The '0' keyboard shortcut didn't update the zoom popup menu. Handle the complete list of alternate names for the Base14 fonts. Fixed substitute font scaling in XOutputDev - scale only the width, not the height. Implemented stitching (type 3) functions. Handle the case of moveto/closepath/clip, which defines an empty clipping region. Move dependences into separate Makefile.dep files; get rid of the distdepend target. Move all of the configure-script-generated -D options out of the Makefiles and into a top-level .h file (aconf.h). Cleaned up the FreeType 1/2 detection code in the configure script. Pdfinfo prints dates in a more readable format. Fixed a bug in the Paeth image predictor. Handle annotations with multiple states. Another workaround for buggy X servers: clip points that are way out of bounds. Added libpaper support (for Debian). Generate PostScript DSC resource comments for PS (not just EPS) files. The save and restore (q/Q) operators shouldn't save/restore the path. Performance optimization: disable pattern drawing in TextOutputDev.