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v6.2.1 release notes

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James R. Barlow
2018-06-23 03:01:54 -07:00
parent 25a1dde57c
commit e14ffbf03f
1 changed files with 30 additions and 23 deletions
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docs/release_notes.rst
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@@ -6,9 +6,16 @@ OCRmyPDF uses `semantic versioning <http://semver.org/>`_ for its command line i
The OCRmyPDF package itself does not contain a public API, although it is fairly stable and breaking changes are usually timed with a major release. A future release will clearly define the stable public API.
.. Issue regex
find: [^`]\#([0-9]{1,3})[^0-9]
find: [^`]\#([0-9]{1,3})[^0-9]
replace: `#$1 <https://github.com/jbarlow83/OCRmyPDF/issues/$1>`_
v6.2.1
------
- Fix recent versions of Tesseract (after 4.0.0-beta1) not being detected as supporting the ``sandwich`` renderer (`#271 <https://github.com/ppjbarlow83/OCRmyPDF/issues/271>`_).
v6.2.0
------
@@ -34,7 +41,7 @@ v6.1.5
v6.1.4
------
- Fix issue `#248 <https://github.com/jbarlow83/OCRmyPDF/issues/248>`_ ``--clean`` argument may remove OCR from left column of text on certain documents. We now set ``--layout none`` to suppress this.
- Fix issue `#248 <https://github.com/jbarlow83/OCRmyPDF/issues/248>`_ ``--clean`` argument may remove OCR from left column of text on certain documents. We now set ``--layout none`` to suppress this.
- The test cache was updated to reflect the change above.
@@ -165,7 +172,7 @@ v5.5
- Add new argument ``--max-image-mpixels``. Pillow 5.0 now raises an exception when images may be decompression bombs. This argument can be used to override the limit Pillow sets.
- Fix output page cropped when using the sandwich renderer and OCR is skipped on a rotated and image-processed page
- A warning is now issued when old versions of Ghostscript are used in cases known to cause issues with non-Latin characters
- Fix a few parameter validation checks for ``-output-type pdfa-1`` and ``pdfa-2``
- Fix a few parameter validation checks for ``-output-type pdfa-1`` and ``pdfa-2``
v5.4.4
@@ -175,7 +182,7 @@ v5.4.4
- Fix issue `#200 <https://github.com/jbarlow83/OCRmyPDF/issues/200>`_: an uncommon syntax for formatting decimal numbers in a PDF would cause qpdf to issue a warning, which ocrmypdf treated as an error. Now this the warning is relayed.
- Fix an issue where intermediate PDFs would be created at version 1.3 instead of the version of the original file. It's possible but unlikely this had side effects.
- A warning is now issued when older versions of qpdf are used since issues like `#200 <https://github.com/jbarlow83/OCRmyPDF/issues/200>`_ cause qpdf to infinite-loop
- Address issue `#140 <https://github.com/jbarlow83/OCRmyPDF/issues/140>`_: if Tesseract outputs invalid UTF-8, escape it and print its message instead of aborting with a Unicode error
- Address issue `#140 <https://github.com/jbarlow83/OCRmyPDF/issues/140>`_: if Tesseract outputs invalid UTF-8, escape it and print its message instead of aborting with a Unicode error
- Adding previously unlisted setup requirement, pytest-runner
- Update documentation: fix an error in the example script for Synology with Docker images, improved security guidance, advised ``pip install --user``
@@ -344,7 +351,7 @@ v4.4.1
- To prevent a `TIFF output error <https://github.com/python-pillow/Pillow/issues/2206>`_ caused by img2pdf >= 0.2.1 and Pillow <= 3.4.2, dependencies have been tightened
- The Tesseract 4.00 simultaneous process limit was increased from 1 to 2, since it was observed that 1 lowers performance
- Documentation improvements to describe the ``--tesseract-config`` feature
- Documentation improvements to describe the ``--tesseract-config`` feature
- Added test cases and fixed error handling for ``--tesseract-config``
- Tweaks to setup.py to deal with issues in the v4.4 release
@@ -407,7 +414,7 @@ v4.3
- New feature ``--remove-background`` to detect and erase the background of color and grayscale images
- Better documentation
- Fixed an issue with PDFs that draw images when the raster stack depth is zero
- Fixed an issue with PDFs that draw images when the raster stack depth is zero
- ocrmypdf can now redirect its output to stdout for use in a shell pipeline
+ This does not improve performance since temporary files are still used for buffering
@@ -475,7 +482,7 @@ v4.2
+ fixes issue `#82 <https://github.com/jbarlow83/OCRmyPDF/issues/82>`_
- Fixes an issue where, with certain settings, monochrome images in PDFs would be converted to 8-bit grayscale, increasing file size (`#79 <https://github.com/jbarlow83/OCRmyPDF/issues/79>`_)
- Support for Ubuntu 12.04 LTS "precise" has been dropped in favor of (roughly) Ubuntu 14.04 LTS "trusty"
- Support for Ubuntu 12.04 LTS "precise" has been dropped in favor of (roughly) Ubuntu 14.04 LTS "trusty"
+ Some Ubuntu "PPAs" (backports) are needed to make it work
@@ -590,7 +597,7 @@ New features
- Automatic page rotation (``-r``) is now available. It uses ignores any prior rotation information
on PDFs and sets rotation based on the dominant orientation of detectable text. This feature is
fairly reliable but some false positives occur especially if there is not much text to work with. (`#4 <https://github.com/jbarlow83/OCRmyPDF/issues/4>`_)
fairly reliable but some false positives occur especially if there is not much text to work with. (`#4 <https://github.com/jbarlow83/OCRmyPDF/issues/4>`_)
- Deskewing is now performed using Leptonica instead of unpaper. Leptonica is faster and more reliable
at image deskewing than unpaper.
@@ -633,7 +640,7 @@ v3.2
New features
^^^^^^^^^^^^
- Lossless reconstruction: when possible, OCRmyPDF will inject text layers without
- Lossless reconstruction: when possible, OCRmyPDF will inject text layers without
otherwise manipulating the content and layout of a PDF page. For example, a PDF containing a mix
of vector and raster content would see the vector content preserved. Images may still be transcoded
during PDF/A conversion. (``--deskew`` and ``--clean-final`` disable this mode, necessarily.)
@@ -668,10 +675,10 @@ Changes
needed to implement support
- Improved some error messages related to missing input files
- Fixed issue `#20 <https://github.com/jbarlow83/OCRmyPDF/issues/20>`_ - uppercase .PDF extension not accepted
- Fixed an issue where OCRmyPDF failed to text that certain pages contained previously OCR'ed text,
- Fixed an issue where OCRmyPDF failed to text that certain pages contained previously OCR'ed text,
such as OCR text produced by Tesseract 3.04
- Inserts /Creator tag into PDFs so that errors can be traced back to this project
- Added new option ``--pdf-renderer=auto``, to let OCRmyPDF pick the best PDF renderer.
- Added new option ``--pdf-renderer=auto``, to let OCRmyPDF pick the best PDF renderer.
Currently it always chooses the 'hocrtransform' renderer but that behavior may change.
- Set up Travis CI automatic integration testing
@@ -681,19 +688,19 @@ v3.0
New features
^^^^^^^^^^^^
- Easier installation with a Docker container or Python's ``pip`` package manager
- Easier installation with a Docker container or Python's ``pip`` package manager
- Eliminated many external dependencies, so it's easier to setup
- Now installs ``ocrmypdf`` to ``/usr/local/bin`` or equivalent for system-wide
access and easier typing
- Improved command line syntax and usage help (``--help``)
- Tesseract 3.03+ PDF page rendering can be used instead for better positioning
of recognized text (``--pdf-renderer tesseract``)
- PDF metadata (title, author, keywords) are now transferred to the
- PDF metadata (title, author, keywords) are now transferred to the
output PDF
- PDF metadata can also be set from the command line (``--title``, etc.)
- Automatic repairs malformed input PDFs if possible
- Added test cases to confirm everything is working
- Added option to skip extremely large pages that take too long to OCR and are
- Added option to skip extremely large pages that take too long to OCR and are
often not OCRable (e.g. large scanned maps or diagrams); other pages are still
processed (``--skip-big``)
- Added option to kill Tesseract OCR process if it seems to be taking too long on
@@ -712,9 +719,9 @@ Changes
available CPUs, increasing performance
- The ``-o DPI`` argument has been phased out, in favor of ``--oversample DPI``, in
case we need ``-o OUTPUTFILE`` in the future
- Removed several dependencies, so it's easier to install. We no
- Removed several dependencies, so it's easier to install. We no
longer use:
- GNU parallel_
- ImageMagick_
- Python 2.7
@@ -730,7 +737,7 @@ Changes
- qpdf_ 5.0.0+
- Unpaper_ 6.1 (optional)
- some automatically managed Python packages
.. _ruffus: http://www.ruffus.org.uk/index.html
.. _parallel: https://www.gnu.org/software/parallel/
.. _ImageMagick: http://www.imagemagick.org/script/index.php
@@ -776,7 +783,7 @@ Release candidates
- fixed some installer issues and errors in installation instructions
- improve performance: run Ghostscript with multithreaded rendering
- improve performance: use multiple cores by default
- bug fix: checking for wrong exception on process timeout
- bug fix: checking for wrong exception on process timeout
- rc3: skipping version number intentionally to avoid confusion with Tesseract
- rc2: first release for public testing to test-PyPI, Github
@@ -799,11 +806,11 @@ where ``settings.txt`` contains *one argument per line*, for example:
::
-l
deu
--author
A. Merkel
--pdf-renderer
-l
deu
--author
A. Merkel
--pdf-renderer
tesseract