Cutlery/calibre
1
0
Fork 0
mirror of https://github.com/kovidgoyal/calibre.git synced 2025-07-09 03:04:10 -04:00
Code Issues Packages Projects Releases Wiki Activity

Error checking and getting meta-data right

Browse Source
This commit is contained in:
Kovid Goyal 2009-01-09 12:36:03 -08:00
parent a5e4ed2779
commit db32290326
2 changed files with 19 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
src/calibre/ebooks/pdf/pdftrim.py
View File

@ -29,7 +29,7 @@ def config(defaults=None):
c.add_opt('top_right_y', [ '-w', '--righty'], default=default_crop, c.add_opt('top_right_y', [ '-w', '--righty'], default=default_crop,
help=_('Number of pixels to crop from the right most y (default is %d)')%default_crop ) help=_('Number of pixels to crop from the right most y (default is %d)')%default_crop )
c.add_opt('bounding', ['-b', '--bounding'], c.add_opt('bounding', ['-b', '--bounding'],
help=_('A file generated by ghostscript which allows each page to be individually cropped')) help=_('A file generated by ghostscript which allows each page to be individually cropped [gs -dSAFER -dNOPAUSE -dBATCH -sDEVICE=bbox > bounding] '))
return c return c
@ -38,14 +38,24 @@ def option_parser():
return c.option_parser(usage=_('''\ return c.option_parser(usage=_('''\
%prog [options] file.pdf %prog [options] file.pdf
Crop a pdf. Crops a pdf.
''')) '''))
def main(args=sys.argv): def main(args=sys.argv):
parser = option_parser() parser = option_parser()
opts, args = parser.parse_args(args) opts, args = parser.parse_args(args)
source = os.path.abspath(args[1]) try:
input_pdf = PdfFileReader(file(source, "rb")) source = os.path.abspath(args[1])
input_pdf = PdfFileReader(file(source, "rb"))
except:
print "Unable to read input"
return 2
info = input_pdf.getDocumentInfo()
title = 'Unknown'
author = 'Unknown'
if info.title:
title = info.title
author = info.author
if opts.bounding != None: if opts.bounding != None:
try: try:
bounding = open( opts.bounding , 'r' ) bounding = open( opts.bounding , 'r' )
@ -53,7 +63,7 @@ def main(args=sys.argv):
except: except:
print 'Error opening %s' % opts.bounding print 'Error opening %s' % opts.bounding
return 1 return 1
output_pdf = PdfFileWriter() output_pdf = PdfFileWriter(title=title,author=author)
for page_number in range (0, input_pdf.getNumPages() ): for page_number in range (0, input_pdf.getNumPages() ):
page = input_pdf.getPage(page_number) page = input_pdf.getPage(page_number)
if opts.bounding != None: if opts.bounding != None:

6
src/pyPdf/pdf.py
View File

@ -55,7 +55,7 @@ from utils import readNonWhitespace, readUntilWhitespace, ConvertFunctionsToVirt
# This class supports writing PDF files out, given pages produced by another # This class supports writing PDF files out, given pages produced by another
# class (typically {@link #PdfFileReader PdfFileReader}). # class (typically {@link #PdfFileReader PdfFileReader}).
class PdfFileWriter(object): class PdfFileWriter(object):
def __init__(self): def __init__(self,title=u"Unknown",author=u"Unknown"):
self._header = "%PDF-1.3" self._header = "%PDF-1.3"
self._objects = [] # array of indirect objects self._objects = [] # array of indirect objects
@ -71,7 +71,9 @@ class PdfFileWriter(object):
# info object # info object
info = DictionaryObject() info = DictionaryObject()
info.update({ info.update({
NameObject("/Producer"): createStringObject(u"Python PDF Library - http://pybrary.net/pyPdf/") NameObject("/Producer"): createStringObject(u"Python PDF Library - http://pybrary.net/pyPdf/"),
NameObject("/Author"): createStringObject(author),
NameObject("/Title"): createStringObject(title),
}) })
self._info = self._addObject(info) self._info = self._addObject(info)