209 commits

Author	SHA1	Message	Date
Johannes Schauer Marin Rodrigues	f597887088	The GIMP ICC bug does not only apply to 1-bit tiff but also to black/white palette PNG ... https://gitlab.gnome.org/GNOME/gimp/-/issues/3438 Closes: #159	2023-08-05 14:43:18 +02:00
Johannes Schauer Marin Rodrigues	3e832fbcc2	add information about how to convert images to 8 bit (closes: #170)	2023-08-05 14:43:07 +02:00
Johannes Schauer Marin Rodrigues	29921eeabd	the default PDF/A icc profile is /usr/share/color/icc/sRGB.icc, /usr/share/color/icc/OpenICC/sRGB.icc or /usr/share/color/icc/colord/sRGB.icc depending on which one exists	2023-06-11 21:56:21 +02:00
Johannes Schauer Marin Rodrigues	85cbe1d128	factor out argparse.ArgumentParser to allow for generating completions via shtab	2023-06-11 08:09:46 +02:00
Johannes Schauer Marin Rodrigues	c703e9df06	fix date(1) based timestamp parser	2023-06-11 07:48:23 +02:00
Johannes Schauer Marin Rodrigues	cb2644c34f	do not include thumbnails in the output by default unless --include-thumbnails is used ... This is relevant for the MPO format which otherwise would result in PDF files containing the same image in different sizes multiple times. With this change, the default is to only have a single page containing the full MPO. This means that extracting that MPO also gets the thumbnails back. With the --include-thumbnails option, each frame gets stored on its own page as it is done for multi-frame GIF, for example. Closes: #135	2023-06-11 07:31:07 +02:00
Patrick McCarty	81502f21af	Convert creation/modification dates to UTC (fixes #155) ... Ensure that timezones are correctly interpreted in the input by calling `.astimezone()` as appropriate on datetime objects, and store the resulting date fields as UTC. One could argue that datetimes in the local timezone be stored in the PDF, but then the date string handling becomes more complicated; the PDF and XMP date specs both use the `Z` suffix to indicate UTC time, but other +/- offsets require different syntax between the two specs.	2023-06-10 17:53:03 -07:00
Johannes Schauer Marin Rodrigues	0cbcb8fa12	avoid converting palette PNG with alpha to RGB (closes: #158)	2023-06-08 08:54:37 +02:00
Johannes Schauer Marin Rodrigues	e9e04b6dd9	extend comments around dropping ICC profile stored by GIMP for bilevel input	2023-06-08 08:53:22 +02:00
Johannes Schauer Marin Rodrigues	fc059ee471	use quotes around caret in examples for windows users ... Closes: #167	2023-06-08 07:14:17 +02:00
Johannes Schauer Marin Rodrigues	25466113e9	another small fixup for the last commit	2023-05-30 08:06:36 +02:00
Johannes Schauer Marin Rodrigues	7405635b72	only check whether icc profile can be dropped if there is any	2023-05-30 07:10:32 +02:00
Johannes Schauer Marin Rodrigues	aea472101b	strip off RGB color profile from bilevel TIFF images produced by gimp (closes: #164)	2023-05-30 06:25:26 +02:00
Johannes Schauer Marin Rodrigues	7fa67bb337	demote print() to logger.debug()	2023-05-29 09:25:21 +02:00
Johannes Schauer Marin Rodrigues	7d40569aa1	Inform the user what is happening when running without any arguments and suggest using --help to get the help text (closes: #156)	2023-05-28 15:25:28 +02:00
Johannes Schauer Marin Rodrigues	be8369373f	pass deterministic_id=True to writer.save() for pikepdf >= 6.2.0 ... Closes: #150	2022-10-16 14:13:35 +02:00
Johannes Schauer Marin Rodrigues	272fe0433f	allow pathlib.Path objects by allowing objects implementing read_bytes function	2022-07-02 21:19:34 +02:00
Johannes Schauer Marin Rodrigues	ef7b9e739d	add miff tests for cmyk8 and rgb8	2022-07-02 20:39:18 +02:00
Johannes Schauer Marin Rodrigues	af6fe27d53	avoid match/case for now until python 3.10 is available on more platforms	2022-06-28 14:22:14 +01:00
Johannes Schauer Marin Rodrigues	bad6fcae39	support for MIFF which allows 16 bit CMYK images ... closes: #144	2022-06-27 13:22:07 +01:00
Johannes Schauer Marin Rodrigues	f454ebc6a6	release version 0.4.4	2022-04-07 22:40:36 +02:00
homocomputeris	5045282cc2	Add B and JB paper sizes	2022-04-07 22:02:16 +02:00
Johannes Schauer Marin Rodrigues	fb4b96452a	reformat with black	2022-04-07 21:58:34 +02:00
Johannes Schauer Marin Rodrigues	c553e169a4	use TiffImagePlugin.STRIP_SIZE for Pillow >= 8.4.0	2022-04-07 21:58:23 +02:00
Johannes Schauer Marin Rodrigues	d9345ac767	set GifImagePlugin.LOADING_STRATEGY to RGB_AFTER_DIFFERENT_PALETTE_ONLY in Pillow >= 9.1.0 (closes: #130)	2022-04-07 21:57:37 +02:00
Johannes Schauer Marin Rodrigues	1d52530229	support new pikepdf.Page object when making indirect objects (closes: #132)	2022-04-07 21:55:45 +02:00
Johannes Schauer Marin Rodrigues	3b117e674b	clarify that input with an alpha channel requires additional computation (closes: #142)	2022-04-07 17:13:16 +02:00
alister	e8ca53738f	--viewer-page-layout support for twopageright and twopageleft	2022-03-25 14:01:18 +01:00
Johannes Schauer Marin Rodrigues	7c48bfb868	find_scale(): better document why we use powers of 10	2022-03-24 12:43:49 +01:00
Johannes Schauer Marin Rodrigues	3da370d3bd	add more information about how to ignore invalid rotation values in input images	2022-02-06 20:33:30 +01:00
Johannes Schauer Marin Rodrigues	30d705f020	src/img2pdf.py: the /OpenAction array must contain the page as an indirect object	2021-11-28 16:55:42 +01:00
Johannes Schauer Marin Rodrigues	dc926b2cf2	release version 0.4.3	2021-10-24 16:51:02 +02:00
Johannes Schauer Marin Rodrigues	a8fdbd0038	fix --viewer-initial-page (broken in last release)	2021-10-24 16:15:46 +02:00
Johannes Schauer Marin Rodrigues	6ff175d637	update my name	2021-10-13 09:17:44 +02:00
Johannes Schauer Marin Rodrigues	50b7145f64	release version 0.4.2	2021-10-11 17:16:03 +02:00
Johannes Schauer Marin Rodrigues	354fd7c264	src/img2pdf.py: format with black	2021-10-03 21:03:22 +02:00
Johannes Schauer Marin Rodrigues	392d4a665e	adapt AlphaChannelError messages	2021-10-03 21:03:08 +02:00
Johannes Schauer Marin Rodrigues	09ad147d97	support PNG palette images with icc profile (closes: #107)	2021-10-03 20:59:59 +02:00
Johannes Schauer Marin Rodrigues	80393b6efa	also support palette+alpha	2021-10-03 20:56:53 +02:00
Johannes Schauer Marin Rodrigues	e265738ac2	Revert "allow palette PNG images with ICC profile (closes: #107)" ... This reverts commit 3d7e0e6812.	2021-10-03 16:09:54 +02:00
mara0004	cde7472d15	Update documentation: img2pdf now supports alpha channels	2021-10-03 11:48:24 +00:00
Johannes Schauer Marin Rodrigues	6eec05c11c	workaround for Pillow >= 8.3.0 which limits CCITT Group4 strip size to 64 KB (closes: #122)	2021-10-03 13:24:53 +02:00
Tamás Zahola	2476215f39	Always initialize smask	2021-08-22 08:08:20 +00:00
Tamás Zahola	f62858c245	Formatting	2021-08-22 08:08:20 +00:00
Tamás Zahola	a5e4da5755	Use PNG predictor for /SMask too	2021-08-22 08:08:19 +00:00
Tamás Zahola	64db7909ec	Added transparency support for GIFs, palette-based PNGs and grayscale PNGs	2021-08-22 08:08:19 +00:00
Tamás Zahola	af5ae5b9b6	Convert 8-bit PNG alpha channels to /SMasks in PDF	2021-08-22 08:08:19 +00:00
Johannes Schauer Marin Rodrigues	5c617965f5	document the ifvalid option value further	2021-08-14 10:19:06 +02:00
Johannes Schauer Marin Rodrigues	0067edf965	remove first_frame_only from gui	2021-08-14 10:18:15 +02:00
Johannes Schauer Marin Rodrigues	91e3a94c3d	sort globbing result on windows	2021-07-02 16:18:20 +02:00