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Author SHA1 Message Date
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
47a1e0c81e
src/img2pdf.py: do not use PNG encoding for CMYK input 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
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
Johannes 'josch' Schauer
9836b976d3 src/img2pdf.py: handle Pillow returning a DPI of zero (closes: #36) 2017-10-18 10:34:59 +02:00
James R. Barlow
a8269391e9 Implement /UserUnit scaling to support oversized PDFs 
The original PDF specification supported a maximum of 200x200" pages or
14400 PDF units. In PDF 1.6 rather than remove this limitation, Adobe
added the /UserUnit field for pages, which allows one to specify the
scaling that should be applied for user-facing numbers, while keeping
the internal limit of 14400 units.

Many real-world designs are larger than 200" in one direction. One
example is tractor feed or rolled paper which may be easier to scan in
one continuous run rather than segment into pages.

/UserUnit is independent of the pixel size and resolution of the image.

/UserUnit can also indicate very small page sizes but this is not
implemented here.
 2017-08-20 21:19:23 +09:00
James R. Barlow
b54617de19 Fix rawdata[:12] bytes/str comparison 2017-08-20 21:11:32 +09:00
Johannes 'josch' Schauer
725462462b release version 0.2.4 2017-05-23 17:53:19 +02:00
Stephan Richter
f626d7860f Produce port that is fully API compatible. 2017-05-23 17:51:17 +02:00
Stephan Richter
06560cd0d4 It is easy enough to create a separate class for the Py2 version. 2017-05-22 19:34:39 +02:00
Stephan Richter
719928f5f5 Declare file encoding, since it contains some non-ascii chars. 2017-05-22 19:34:39 +02:00
Stephan Richter
b25098c3f0 Python 2 does not automatically convert integers to floats, so we have to be a bit more explicit. 2017-05-22 19:34:34 +02:00
Johannes 'josch' Schauer
16993964ce restore pep8 compliance 2017-01-20 09:19:30 +01:00
Johannes 'josch' Schauer
7df29a9acc Allow to call get_layout_fun with less parameters by specifying defaults 2017-01-20 09:15:02 +01:00
Johannes 'josch' Schauer
e20fe4944c release version 0.2.3 2017-01-20 05:47:06 +01:00
Johannes 'josch' Schauer
1513ab3421 release version 0.2.2 2017-01-20 05:23:40 +01:00
Johannes 'josch' Schauer
4040e907a3 Make --help output more friendly to help2man 2017-01-20 05:17:23 +01:00
Johannes 'josch' Schauer
ef36e86a46 Fix default of --producer argument in --help output to include version 2017-01-20 04:46:26 +01:00
Johannes 'josch' Schauer
fbeecd2301 Allow to not add the /Producer field to the metadata 2017-01-20 04:45:14 +01:00
Johannes 'josch' Schauer
f94684c8ea If input to convert() doesn't have a write() member, then it must be str or bytes type 2017-01-19 20:32:46 +01:00
Johannes 'josch' Schauer
7c90b2c451 restore backwards compatibility and allow passing images as a list 2017-01-19 20:32:16 +01:00
Johannes 'josch' Schauer
962d4dbdfb Make pep8 compliant again 2017-01-19 11:22:08 +01:00
James R. Barlow
c27505486e Break out TIFF G4 transcoding into its own function 2016-07-22 07:09:24 +02:00
James R. Barlow
95f84f97bc Implement automatic monochrome CCITT Group4 encoding via Pillow/libtiff 2016-07-22 07:09:07 +02:00
Jakub Wilk
0fe30a62d9 fix typos 2016-06-10 17:02:38 +01:00
Johannes 'josch' Schauer
d78b2cbdbc Fix bug where horizontal and vertical borders where switched when page size was also given. Thanks Erik./a.out| sox -c 1 -e unsigned-integer -r 8000 -t u8 - -d --buffer 32 Closes #30 2016-05-26 08:19:34 +02:00
Andrey Gursky
c704e657cc update version according to release 2016-05-11 21:39:21 +02:00
Johannes 'josch' Schauer
c158585618 only use jp2 to parse jpeg2000 if PIL doesn't support jpeg2000 2016-02-17 20:31:46 +01:00
Johannes 'josch' Schauer
ef9eac7326 instead of storing a limited list of supported colorspaces and imageformats, store the items requiring special treatment but do not abort if a value other than the listed ones is supported by PIL 2016-02-17 18:47:02 +01:00
Johannes 'josch' Schauer
00c73a6691 make the separating x optional when specifying the width without the height 2016-02-17 18:16:17 +01:00
Johannes 'josch' Schauer
86552a78dc fix --fit=exact if one value is missing 2016-02-17 18:11:11 +01:00
Johannes 'josch' Schauer
ad528d4feb restore feature that it is allowed to only specify width or height 2016-02-17 17:51:57 +01:00
Johannes 'josch' Schauer
3e8894c7da change MonochromeJpegError to JpegColorspaceError and add check for jpegs with alpha channel 2016-02-17 00:37:51 +01:00
Johannes 'josch' Schauer
d9b2550ceb support for palette images for better GIF support 2016-02-17 00:37:51 +01:00
Johannes 'josch' Schauer
edba669000 support from multi-frame images like multipage TIFF and animated GIF 2016-02-17 00:37:46 +01:00
Johannes 'josch' Schauer
c6d69b231b when verbose logging is enabled, print a traceback of possibly raised exceptions 2016-02-14 18:55:27 +01:00
Johannes 'josch' Schauer
b6e969d267 input images can now be file like objects, binary strings with the image content or filenames 2016-02-14 18:54:59 +01:00
Johannes 'josch' Schauer
cc59fbc3e4 raise exceptions instead of doing an exit() 2016-02-13 09:31:33 +01:00
James R. Barlow
900346d430 src/img2pdf.py: add get_fixed_dpi_layout_fun 2016-02-13 09:01:08 +01:00
James R. Barlow
a7dba2894f Put version string in /Producer too 2016-02-13 09:01:03 +01:00
James R. Barlow
11affb6264 allow writing the pdf to a file-like object instead of storing everything in memory 2016-02-13 09:00:53 +01:00
Johannes 'josch' Schauer
31a2ce231f cap the maximum page size at 200 dpi which is the maximum supported by PDF 2016-02-10 09:44:12 +01:00
Johannes 'josch' Schauer
7160f1628d fix parsing of dpi and % units 2016-02-10 09:32:38 +01:00