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Author SHA1 Message Date
Johannes 'josch' Schauer
42f8ac54a8
Allow CCITT Group4 input without rows-per-strip (closes: #48) 2018-11-20 16:30:14 +01:00
Johannes 'josch' Schauer
d4700dbf38
test.sh: add comment about dct decoding method 2018-08-27 11:42:37 +02:00
Johannes 'josch' Schauer
bd55ac5a45
test.sh: implement EXIT trap 2018-08-27 08:17:06 +02:00
Johannes 'josch' Schauer
2f3394a1cb
Add extensive test suite test.sh 2018-08-20 10:28:14 +02:00
Johannes 'josch' Schauer
50a3109c43
src/img2pdf.py: do not overwrite imgformat variable in loop as this will then affect later loop iterations and we need to retain its original value 2018-08-20 10:27:27 +02:00
Johannes 'josch' Schauer
03bdc33053
src/img2pdf.py: be more explicit when embedding group4 from TIFF 2018-08-20 10:26:39 +02:00
Johannes 'josch' Schauer
b758b54ce8
src/img2pdf.py: Disallow TIFF input with more than 8 bits per sample because PIL will silently convert it to 8 bits per sample 2018-08-20 10:25:39 +02:00
Johannes 'josch' Schauer
a2b969640a
src/img2pdf.py: assign the default dpi to tiff images where PIL returned its default of (1,1) 2018-08-20 10:24:31 +02:00
Johannes 'josch' Schauer
8961c78dbf
src/img2pdf.py: add commented-out debugging option for PIL's TiffImagePlugin 2018-08-20 10:23:23 +02:00
Johannes 'josch' Schauer
6c44d8cea6
src/img2pdf.py: add more rationale behind palette encoding 2018-08-20 10:21:18 +02:00
Johannes 'josch' Schauer
c0ed810036
src/img2pdf.py: work around PIL not reporting a colorspace for 16bit grayscale PNGs 2018-08-17 12:57:46 +02:00
Johannes 'josch' Schauer
ccca845606
src/img2pdf.py: Read bits per sample from PNG to support PNG images with 1, 2, 4 or 16 bits per sample 2018-08-17 12:55:55 +02:00
Johannes 'josch' Schauer
53685934f9
src/img2pdf.py: also reject palette images with transparency 2018-08-17 07:27:15 +02:00
Johannes 'josch' Schauer
ba5a9a1dfc
Allow multipage CCITT group 4 TIFF images 2018-08-16 00:23:18 +02:00
Johannes 'josch' Schauer
a628ed22f9
Add more debugging output 2018-08-16 00:11:07 +02:00
Johannes 'josch' Schauer
fbcaca5e6b
big endian encoded TIFF files may have FillOrder set to lsb-to-msb and must have the bits of each byte reversed 2018-08-16 00:10:46 +02:00
Johannes 'josch' Schauer
a9f4c9b665
release version 0.3.1 2018-08-04 15:44:45 +02:00
Johannes 'josch' Schauer
002c9c4466
CHANGES.rst: add release dates 2018-08-04 14:37:38 +02:00
Johannes 'josch' Schauer
198c98a5f9
make pep8 compliant 2018-08-01 22:28:44 +02:00
Johannes 'josch' Schauer
9395b6fbbe
README.md: comparison to other software 2018-08-01 22:14:14 +02:00
Johannes 'josch' Schauer
f5d8d86dff
Also do not re-encode CCITT Group 4 encoded TIFF images 
Add additional property of input images: inverted

closes: #47
 2018-08-01 22:12:40 +02:00
Johannes 'josch' Schauer
36c5034db5
Distribute LICENSE file in release tarball 2018-08-01 20:41:02 +02:00
Jakub Wilk
7131b3d6ee
Use printf(1) instead of non-portable "/bin/echo -ne" 2018-07-21 12:08:23 +02:00
Johannes 'josch' Schauer
b3fb2de5f6
src/img2pdf.py: fix spelling in --help output 2018-07-19 12:05:27 +02:00
Johannes 'josch' Schauer
4c5faf408f
README.md: restructure 2018-07-18 15:52:54 +02:00
Johannes 'josch' Schauer
2ad0c036b2
src/tests/input/mono.tif: set dpi to 72 2018-07-18 14:08:04 +02:00
Johannes 'josch' Schauer
1aa71e3746
release version 0.3.0 2018-07-18 11:30:43 +02:00
Johannes 'josch' Schauer
75c43de09d
Create a new PIL image before saving as TIFF to prevent libtiff errors 
closes: #46
 2018-07-18 01:58:03 +02:00
Johannes 'josch' Schauer
eec1a25a92
add test case for ccittfaxdecode 2018-07-18 01:55:48 +02:00
Johannes 'josch' Schauer
7de174f4b5
CCITTFaxDecode filter must be in an array 2018-07-18 01:55:48 +02:00
Johannes 'josch' Schauer
48d5b4d7af
CCITTGroup4 must return empty palette 2018-07-18 00:57:43 +02:00
Johannes 'josch' Schauer
ce68cb21d7
Add LICENSE file 
closes: #43
 2018-07-18 00:07:30 +02:00
Johannes 'josch' Schauer
d931f02709
src/tests/__init__.py: handle PNG input images properly 2018-07-18 00:05:15 +02:00
Johannes 'josch' Schauer
b99fae1380
src/tests/__init__.py: don't test for color space now that we support palette PNGs 2018-07-18 00:04:30 +02:00
Johannes 'josch' Schauer
ac9ba1d0f6
handle monochrome png properly 2018-07-18 00:03:31 +02:00
Johannes 'josch' Schauer
eaf9de23c9
Filter must not be array for PNG output, so never make it an array 2018-07-17 23:59:55 +02:00
Johannes 'josch' Schauer
2a33ff275d
adapt test output to new handling of png input 2018-07-17 23:56:01 +02:00
Johannes 'josch' Schauer
ebd8d911bb
add test grayscale input png src/tests/input/gray.png 2018-07-17 16:57:44 +02:00
Johannes 'josch' Schauer
e7755f0a87
src/tests/input/normal.png: remove alpha channel 2018-07-17 16:57:44 +02:00
Johannes 'josch' Schauer
47a1e0c81e
src/img2pdf.py: do not use PNG encoding for CMYK input 2018-07-17 16:57:44 +02:00
Johannes 'josch' Schauer
3142824bab
src/tests/__init__.py: do not test animation.gif with pdfrw because it doesn't support hexadecimal palette data 2018-07-17 16:57:44 +02:00
Johannes 'josch' Schauer
84ce9bbd9c
src/img2pdf.py: do not allow transparency 2018-07-17 16:57:44 +02:00
Johannes 'josch' Schauer
90293204b2
src/img2pdf.py: use logging.warning because warn() is deprecated 2018-07-17 16:07:01 +02:00
Johannes 'josch' Schauer
d09aa76c9e
README.md: remove ambiguous section about lossless compression 2018-06-16 16:56:01 +02:00
Johannes 'josch' Schauer
ade5768d72
src/img2pdf.py: expand error message about alpha channel 2018-03-27 10:39:24 +02:00
Johannes 'josch' Schauer
920506b867
Reflect the fact that we now use PNG compression in the --help output 2018-03-24 19:53:41 +01:00
Johannes 'josch' Schauer
e78dd80451
Add option --pillow-limit-break to force Pillow to accept large input images 2018-03-24 19:47:03 +01:00
Johannes 'josch' Schauer
d9a6c9db03
Interlaced PNGs cannot be directly embedded but have to be re-encoded 2018-03-24 18:59:02 +01:00
Johannes 'josch' Schauer
7244d2c6ed
Disallow input images with alpha channel as it cannot be preserved in the PDF and would thus make img2pdf not lossless 2018-03-24 18:55:14 +01:00
Johannes 'josch' Schauer
1d9a25dfd2
Proof of concept of using PDF DecodeParms for storing pixel data with PNG compression 2018-03-15 11:31:36 +01:00