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img2pdf
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Start of converting the module to a proper package.

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Stephan Richter 10 years ago committed by josch
parent 8c293291c5
commit b47cc04dd3
3 changed files with 122 additions and 49 deletions
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36
setup.py
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@ -0,0 +1,36 @@
from setuptools import setup
setup (
name='img2pdf',
version='0.1.0',
author = "Johannes 'josch' Schauer",
description = "Convert images to PDF via direct JPEG inclusion.",
long_description = open('README.md').read(),
license = "GPL",
keywords = "jpeg pdf converter",
classifiers = [
'Development Status :: 4 - Beta',
'Intended Audience :: Developers',
'Programming Language :: Python',
'Programming Language :: Python :: 2',
'Programming Language :: Python :: 2.6',
'Programming Language :: Python :: 2.7',
'Programming Language :: Python :: Implementation :: CPython',
'License :: OSI Approved :: General Public License',
'Programming Language :: Python',
'Natural Language :: English',
'Operating System :: OS Independent'],
url = 'http://pypi.python.org/pypi/img2pdf',
package_dir={"": "src"},
py_modules=['img2pdf', 'jp2'],
include_package_data = True,
test_suite = 'tests.test_suite',
zip_safe = True,
install_requires=(
'Pillow',
),
entry_points='''
[console_scripts]
img2pdf = img2pdf:main
''',
)

135
img2pdf.py → src/img2pdf.py
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@ -1,5 +1,3 @@
#!/usr/bin/env python
#
# Copyright (C) 2012-2013 Johannes 'josch' Schauer <j.schauer at email.de>
#
# This program is free software: you can redistribute it and/or modify
@ -15,17 +13,19 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import Image
import sys
import zlib
import argparse
import struct
from Pillow import Image
from datetime import datetime
from jp2 import parsejp2
def parse(cont, indent=1):
if type(cont) is dict:
return "<<\n"+"\n".join([4*indent*" "+"%s %s"%(k, parse(v, indent+1)) for k, v in cont.items()])+"\n"+4*(indent-1)*" "+">>"
return "<<\n"+"\n".join(
[4 * indent * " " + "%s %s" % (k, parse(v, indent+1))
for k, v in cont.items()])+"\n"+4*(indent-1)*" "+">>"
elif type(cont) is int or type(cont) is float:
return str(cont)
elif isinstance(cont, obj):
@ -35,26 +35,29 @@ def parse(cont, indent=1):
elif type(cont) is list:
return "[ "+" ".join([parse(c, indent) for c in cont])+" ]"
class obj():
class obj(object):
def __init__(self, content, stream=None):
self.content = content
self.stream = stream
def tostring(self):
if self.stream:
return "%d 0 obj "%self.identifier+parse(self.content)+"\nstream\n"+self.stream+"\nendstream\nendobj\n"
return "%d 0 obj " % (
self.identifier+parse(self.content) +
"\nstream\n" + self.stream + "\nendstream\nendobj\n")
else:
return "%d 0 obj "%self.identifier+parse(self.content)+" endobj\n"
class pdfdoc():
objects = list()
class pdfdoc(object):
def __init__(self, version=3, title=None, author=None, creator=None, producer=None,
creationdate=None, moddate=None, subject=None, keywords=None):
def __init__(self, version=3, title=None, author=None, creator=None,
producer=None, creationdate=None, moddate=None, subject=None,
keywords=None):
self.version = version # default pdf version 1.3
now = datetime.now()
objects = []
info = dict()
info = {}
if title:
info["/Title"] = "("+title+")"
if author:
@ -78,7 +81,8 @@ class pdfdoc():
self.info = obj(info)
# create an incomplete pages object so that a /Parent entry can be added to each page
# create an incomplete pages object so that a /Parent entry can be
# added to each page
self.pages = obj({
"/Type": "/Pages",
"/Kids": [],
@ -106,7 +110,8 @@ class pdfdoc():
error_out("unsupported color space: %s"%color)
exit(1)
pdf_x, pdf_y = 72.0*width/dpi[0], 72.0*height/dpi[1] # pdf units = 1/72 inch
# pdf units = 1/72 inch
pdf_x, pdf_y = 72.0*width/dpi[0], 72.0*height/dpi[1]
if pdf_x < 3.00 or pdf_y < 3.00:
warning_out("pdf width or height is below 3.00 - decrease the dpi")
@ -126,7 +131,8 @@ class pdfdoc():
"/Width": width,
"/Height": height,
"/ColorSpace": color,
"/BitsPerComponent": 8, # hardcoded as PIL doesnt provide bits for non-jpeg formats
# hardcoded as PIL doesnt provide bits for non-jpeg formats
"/BitsPerComponent": 8,
"/Length": len(imgdata)
}, imgdata)
@ -178,9 +184,9 @@ class pdfdoc():
result += "%%EOF\n"
return result
def main(images, dpi, title=None, author=None, creator=None, producer=None,
creationdate=None, moddate=None, subject=None, keywords=None,
colorspace=None, verbose=False):
def convert(images, dpi, title=None, author=None, creator=None, producer=None,
creationdate=None, moddate=None, subject=None, keywords=None,
colorspace=None, verbose=False):
def debug_out(message):
if verbose:
@ -190,7 +196,8 @@ def main(images, dpi, title=None, author=None, creator=None, producer=None,
def warning_out(message):
sys.stderr.write("W: "+message+"\n")
pdf = pdfdoc(3, title, author, creator, producer, creationdate, moddate, subject, keywords)
pdf = pdfdoc(3, title, author, creator, producer, creationdate,
moddate, subject, keywords)
for im in images:
rawdata = im.read()
@ -261,34 +268,64 @@ def main(images, dpi, title=None, author=None, creator=None, producer=None,
return pdf.tostring()
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='lossless conversion/embedding of images (in)to pdf')
parser.add_argument('images', metavar='infile', type=argparse.FileType('rb'),
nargs='+', help='input file(s)')
parser.add_argument('-o', '--output', metavar='out', type=argparse.FileType('wb'),
default=sys.stdout, help='output file (default: stdout)')
def positive_float(string):
value = float(string)
if value <= 0:
msg = "%r is not positive"%string
raise argparse.ArgumentTypeError(msg)
return value
parser.add_argument('-d', '--dpi', metavar='dpi', type=positive_float, help='dpi for pdf output (default: 96.0)')
parser.add_argument('-t', '--title', metavar='title', type=str, help='title for metadata')
parser.add_argument('-a', '--author', metavar='author', type=str, help='author for metadata')
parser.add_argument('-c', '--creator', metavar='creator', type=str, help='creator for metadata')
parser.add_argument('-p', '--producer', metavar='producer', type=str, help='producer for metadata')
def valid_date(string):
return datetime.strptime(string, "%Y-%m-%dT%H:%M:%S")
parser.add_argument('-r', '--creationdate', metavar='creationdate',
type=valid_date, help='creation date for metadata in YYYY-MM-DDTHH:MM:SS format')
parser.add_argument('-m', '--moddate', metavar='moddate',
type=valid_date, help='modification date for metadata in YYYY-MM-DDTHH:MM:SS format')
parser.add_argument('-s', '--subject', metavar='subject', type=str, help='subject for metadata')
parser.add_argument('-k', '--keywords', metavar='kw', type=str, nargs='+', help='keywords for metadata')
parser.add_argument('-C', '--colorspace', metavar='colorspace', type=str, help='force PIL colorspace (one of: RGB, L, 1)')
parser.add_argument('-v', '--verbose', help='verbose mode', action="store_true")
args = parser.parse_args()
args.output.write(main(args.images, args.dpi, args.title, args.author,
args.creator, args.producer, args.creationdate, args.moddate,
args.subject, args.keywords, args.colorspace, args.verbose))
def positive_float(string):
value = float(string)
if value <= 0:
msg = "%r is not positive"%string
raise argparse.ArgumentTypeError(msg)
return value
def valid_date(string):
return datetime.strptime(string, "%Y-%m-%dT%H:%M:%S")
parser = argparse.ArgumentParser(
description='Lossless conversion/embedding of images (in)to pdf')
parser.add_argument(
'images', metavar='infile', type=argparse.FileType('rb'),
nargs='+', help='input file(s)')
parser.add_argument(
'-o', '--output', metavar='out', type=argparse.FileType('wb'),
default=sys.stdout, help='output file (default: stdout)')
parser.add_argument(
'-d', '--dpi', metavar='dpi', type=positive_float,
help='dpi for pdf output (default: 96.0)')
parser.add_argument(
'-t', '--title', metavar='title', type=str,
help='title for metadata')
parser.add_argument(
'-a', '--author', metavar='author', type=str,
help='author for metadata')
parser.add_argument(
'-c', '--creator', metavar='creator', type=str,
help='creator for metadata')
parser.add_argument(
'-p', '--producer', metavar='producer', type=str,
help='producer for metadata')
parser.add_argument(
'-r', '--creationdate', metavar='creationdate', type=valid_date,
help='creation date for metadata in YYYY-MM-DDTHH:MM:SS format')
parser.add_argument(
'-m', '--moddate', metavar='moddate', type=valid_date,
help='modification date for metadata in YYYY-MM-DDTHH:MM:SS format')
parser.add_argument(
'-s', '--subject', metavar='subject', type=str,
help='subject for metadata')
parser.add_argument(
'-k', '--keywords', metavar='kw', type=str, nargs='+',
help='keywords for metadata')
parser.add_argument(
'-C', '--colorspace', metavar='colorspace', type=str,
help='force PIL colorspace (one of: RGB, L, 1)')
parser.add_argument(
'-v', '--verbose', help='verbose mode', action="store_true")
def main(args=None):
if args is None:
args = sys.argv[1:]
args = parser.parse_args(args)
args.output.write(
convert(
args.images, args.dpi, args.title, args.author,
args.creator, args.producer, args.creationdate, args.moddate,
args.subject, args.keywords, args.colorspace, args.verbose))

0
jp2.py → src/jp2.py
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