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Diffstat (limited to 'Build/source/libs/xpdf/xpdf-src/CHANGES')
-rw-r--r-- | Build/source/libs/xpdf/xpdf-src/CHANGES | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/Build/source/libs/xpdf/xpdf-src/CHANGES b/Build/source/libs/xpdf/xpdf-src/CHANGES index d2228d233b3..5f4461feac3 100644 --- a/Build/source/libs/xpdf/xpdf-src/CHANGES +++ b/Build/source/libs/xpdf/xpdf-src/CHANGES @@ -2321,3 +2321,136 @@ When upsampling an image mask or image with a large resulting image size, do it in stream mode instead of prescaling the whole image (to avoid running out of memory). Added infinite loop detection to pdffonts. + +4.00 (2017-aug-10) +------------------ +Complete rewrite of the xpdf GUI, using Qt instead of Motif. +Multithreaded rasterization in the viewer - pages are now rasterized + in a separate thread so that scrolling and other UI activity is not + blocked. +Added a linear text selection mode. +Limit transparency groups to the clip rectangle (performance + optimization). +Optimized the SplashScreen code, used in 1-bit monochrome mode. +Added setmode calls to pdftopng, when writing to stdout on Windows. + [Thanks to Robert Schroll.] +Regenerate the appearance stream for an AcroForm field if there is + no appearance stream, even if NeedAppearances isn't set. +When regenerating AcroForm field appearance streams, use a default + font (Helvetica) for fields that don't have a valid font. +When the line width is increased by the minLineWidth setting, force + the line join mode to "bevel" to avoid "whiskers" at sharp corners. +Change the pdftoppm/pdftopng resolution (-r) argument from an integer + to floating point. +Use the FontDescriptor 'CapHeight' value in place of 'Ascent' if it's + available. +OC (optional content) entries in image XObjects were being ignored. +Added support for preblended soft-masked images. +Added optional support for using libjpeg to decode DCT (JPEG) + streams. +Transparency groups weren't being composited correctly in mono1 mode. +Switched to a different IDCT transform in the DCT (JPEG) decoder, to + get better accuracy; the new transform is also a bit faster. +Modified the polygon scan converter to avoid O(n^2) performance, which + can get really bad with paths that have extremely large numbers of + segments. +Added the maxTileWidth, maxTileHeight, tileCacheSize, and + workerThreads xpdfrc settings. +Modified PSOutputDev so it doesn't output resources (fonts, etc.) for + pages that are rasterized (because they use transparency). +Added the -alpha flag to pdftopng. +Handle TrueType fonts with out-of-bounds loca entries. +Optimize consectutive "q" (gsave) operations in PostScript output. +Various improvements to the XFA rendering code. +Added the -nodiag flag to pdftotext. +Switched to cmake instead of autoconf. +Look for Widget-type annotations that aren't attached to the + AcroForm, and add them to the AcroForm. +Added the "-z" option to pdftohtml. +The JPEG 2000 decoder now treats invalid boxes after the image + codestream as non-fatal errors. +Improved the handling of drop caps in pdftohtml. +Added the "psNeverRasterize" setting. +Pdftohtml now converts invisible PDF text to transparent HTML text. +Check for zero-width/height bitmaps in the JBIG2 decoder -- these can + happen in corrupted JBIG2 streams. +Pdfimages was inverting 1-bit monochrome images. +Added CCITTFaxStream::getBlock() to speed up the CCITTFax decoder. +Added resolution info to PNG files generated by pdftopng. +The DCT decoder now ignores non-Adobe APP14 markers (rather than + generating an error). +Regenerate appearance streams for FreeText annotations. +The TextString class now handles UTF-16LE in addition to UTF-16BE. + (UTF-16LE isn't allowed by the PDF spec, but I've seen it used.) +Added the simple one-column text extraction mode (pdftotext -simple). +Added a -cmyk option to pdftoppm to write CMYK PAM files. +Modified pdfinfo to output "static XFA" or "dynamic XFA", rather than + just "XFA". +Added the "drawFormFields" xpdfrc command. +Various performance optimizations in the rasterizer. +Fixed the tiling pattern code to avoid stripes between pattern cells, + and to honor the TilingType flag. +Always split axial shadings into 256 slices. +Handle the case where an optional content block is left open at the + end of a page content stream. +Accept code-to-CID-type CMaps as ToUnicode CMaps (to work around buggy + PDF generators). +Unicode-to-unicode maps weren't working correctly with fonts that have + an "Identity" encoding. +Modify the lexer to interpret "--123.4" as -123.4, "--123" as 0, and + "123-45" as "123" to match Adobe's behavior. +The text extractor now reverses the order of side-by-side columns for + right-to-left scripts. +Worked on right-to-left script support in pdftohtml (still not + complete). +Switched the default display mode to continuous (from single page). +Added the "-bom" switch to pdftotext. +Share font objects when multiple font tags point to the same object. +The transfer function goes before alpha blending in the rasterizer + pipeline. +Added the "-allinvisible" switch to pdftohtml. +Added overprint mode (OPM) support in Level 3 PostScript output. +Added support for DeviceN color spaces in Level 3 PostScript output. +Added the "-userunit" option to pdftops. +Added the "-raw" and "-list" options to pdfimages. +Pdfimages now writes PGM files (instead of PPM files) for DeviceGray + and CalGray images. +Added grayscale PostScript output -- added the '-level2gray' and + '-level3gray' switches to pdftops. +Fix up Type 1 fonts when embedding in PostScript. +Added the "problematic" column to pdffonts output. +Generate an appearance stream for signature fields in AcroForms. +Correctly handle line dash patterns with zero-length segments when the + line cap is butt or project. +Added the "strokeAdjust cad" xpdfrc option; fixed some issues with + stroke adjustment and projecting line caps. +Added support for Code128B bar codes in XFA forms. +Look at both the ON and OFF arrays in the default OCCD (optional + content config dict), to work around certain broken PDF files. +Added support for XFA 'numericEdit' fields. +Added support for 'picture' formatting in XFA forms. +Added mouseClickN events (in addition to mousePressN and + mouseReleaseN). +External CID OpenType CFF fonts should map through Unicode (similarly + to external CID TrueType fonts). +Handle axial and radial shadings in SplashOutputDev, in device space. +Use the PDF 2.0 inline image length field. +Handle duplicate embedded Type 1 font names in PostScript output. +Handle the case of a stroked closed path with a dash pattern -- if the + dash pattern is "on" at both the start and end of a subpath, it + should be joined. +If the line dash phase is negative, add a multiple of 2x the total + dash length. +Indexed color space indexes should be clipped to [0,hival]. +Fix the handling of the text render mode with Type 3 fonts, in the + rasterizer and in PostScript output. +CID font metrics shouldn't be sorted - the PDF 2.0 spec says that, in + the case of duplicate entries, the first entry should be used. +PSOutputDev now converts tiling patterns to PostScript tiling patterns + (in Level 2/3). +Fixed a security hole in SecurityHandler.cc (uninitialized variables). + This vulnerability was discovered by Kushal Shah of Fortinet's + FortiGuard Labs. +Fixed a security hole in Function.cc (write past end of array). +Fixed a security hole with the use of d0/d1 operators outside of a + Type3 CharProc [CVE-2016-9027]. |