add --crop-border, --bleed-border, --trim-border and --art-border options

This commit is contained in:
Johannes 'josch' Schauer 2019-04-02 07:37:03 +02:00
parent 82706671cc
commit ed6187d541
Signed by untrusted user: josch
GPG key ID: F2CBA5C78FBD83E1

View file

@ -455,6 +455,9 @@ class MyPdfDict(object):
def __getitem__(self, key): def __getitem__(self, key):
return self.content[key] return self.content[key]
def __contains__(self, key):
return key in self.content
class MyPdfName: class MyPdfName:
def __getattr__(self, name): def __getattr__(self, name):
@ -717,6 +720,10 @@ class pdfdoc(object):
inverted=False, inverted=False,
depth=0, depth=0,
rotate=0, rotate=0,
cropborder=None,
bleedborder=None,
trimborder=None,
artborder=None,
): ):
if self.with_pdfrw: if self.with_pdfrw:
from pdfrw import PdfDict, PdfName, PdfObject, PdfString from pdfrw import PdfDict, PdfName, PdfObject, PdfString
@ -809,6 +816,48 @@ class pdfdoc(object):
page = PdfDict(indirect=True) page = PdfDict(indirect=True)
page[PdfName.Type] = PdfName.Page page[PdfName.Type] = PdfName.Page
page[PdfName.MediaBox] = [0, 0, pagewidth, pageheight] page[PdfName.MediaBox] = [0, 0, pagewidth, pageheight]
# 14.11.2 Page Boundaries
# ...
# The crop, bleed, trim, and art boxes shall not ordinarily extend
# beyond the boundaries of the media box. If they do, they are
# effectively reduced to their intersection with the media box.
if cropborder is not None:
page[PdfName.CropBox] = [
cropborder[1],
cropborder[0],
pagewidth - 2 * cropborder[1],
pageheight - 2 * cropborder[0],
]
if bleedborder is None:
if PdfName.CropBox in page:
page[PdfName.BleedBox] = page[PdfName.CropBox]
else:
page[PdfName.BleedBox] = [
bleedborder[1],
bleedborder[0],
pagewidth - 2 * bleedborder[1],
pageheight - 2 * bleedborder[0],
]
if trimborder is None:
if PdfName.CropBox in page:
page[PdfName.TrimBox] = page[PdfName.CropBox]
else:
page[PdfName.TrimBox] = [
trimborder[1],
trimborder[0],
pagewidth - 2 * trimborder[1],
pageheight - 2 * trimborder[0],
]
if artborder is None:
if PdfName.CropBox in page:
page[PdfName.ArtBox] = page[PdfName.CropBox]
else:
page[PdfName.ArtBox] = [
artborder[1],
artborder[0],
pagewidth - 2 * artborder[1],
pageheight - 2 * artborder[0],
]
page[PdfName.Resources] = resources page[PdfName.Resources] = resources
page[PdfName.Contents] = content page[PdfName.Contents] = content
if rotate != 0: if rotate != 0:
@ -1763,6 +1812,10 @@ def convert(*images, **kwargs):
outputstream=None, outputstream=None,
first_frame_only=False, first_frame_only=False,
allow_oversized=True, allow_oversized=True,
cropborder=None,
bleedborder=None,
trimborder=None,
artborder=None,
) )
for kwname, default in _default_kwargs.items(): for kwname, default in _default_kwargs.items():
if kwname not in kwargs: if kwname not in kwargs:
@ -1870,6 +1923,10 @@ def convert(*images, **kwargs):
inverted, inverted,
depth, depth,
rotation, rotation,
kwargs["cropborder"],
kwargs["bleedborder"],
kwargs["trimborder"],
kwargs["artborder"],
) )
if kwargs["outputstream"]: if kwargs["outputstream"]:
@ -2442,6 +2499,8 @@ the image size will be calculated from the page size, respecting the border
setting. If the --border option is given while both the --pagesize and setting. If the --border option is given while both the --pagesize and
--imgsize options are passed, then the --border option will be ignored. --imgsize options are passed, then the --border option will be ignored.
The --pagesize option or the --imgsize option with the --border option will
determine the MediaBox size of the resulting PDF document.
""" """
% default_dpi, % default_dpi,
) )
@ -2509,6 +2568,50 @@ If both dimensions of the page are given via --pagesize, conditionally swaps
these dimensions such that the page orientation is the same as the orientation these dimensions such that the page orientation is the same as the orientation
of the input image. If the orientation of a page gets flipped, then so do the of the input image. If the orientation of a page gets flipped, then so do the
values set via the --border option. values set via the --border option.
""",
)
sizeargs.add_argument(
"--crop-border",
metavar="L[:L]",
type=parse_borderarg,
help="""
Specifies the border between the CropBox and the MediaBox. One, or two length
values can be given as an argument, separated by a colon. One value specifies
the border on all four sides. Two values specify the border on the top/bottom
and left/right, respectively. It is not possible to specify asymmetric borders.
""",
)
sizeargs.add_argument(
"--bleed-border",
metavar="L[:L]",
type=parse_borderarg,
help="""
Specifies the border between the BleedBox and the MediaBox. One, or two length
values can be given as an argument, separated by a colon. One value specifies
the border on all four sides. Two values specify the border on the top/bottom
and left/right, respectively. It is not possible to specify asymmetric borders.
""",
)
sizeargs.add_argument(
"--trim-border",
metavar="L[:L]",
type=parse_borderarg,
help="""
Specifies the border between the TrimBox and the MediaBox. One, or two length
values can be given as an argument, separated by a colon. One value specifies
the border on all four sides. Two values specify the border on the top/bottom
and left/right, respectively. It is not possible to specify asymmetric borders.
""",
)
sizeargs.add_argument(
"--art-border",
metavar="L[:L]",
type=parse_borderarg,
help="""
Specifies the border between the ArtBox and the MediaBox. One, or two length
values can be given as an argument, separated by a colon. One value specifies
the border on all four sides. Two values specify the border on the top/bottom
and left/right, respectively. It is not possible to specify asymmetric borders.
""", """,
) )
@ -2685,7 +2788,11 @@ values set via the --border option.
viewer_fullscreen=args.viewer_fullscreen, viewer_fullscreen=args.viewer_fullscreen,
with_pdfrw=not args.without_pdfrw, with_pdfrw=not args.without_pdfrw,
outputstream=args.output, outputstream=args.output,
first_frame_only=args.first_frame_only first_frame_only=args.first_frame_only,
cropborder=args.crop_border,
bleedborder=args.bleed_border,
trimborder=args.trim_border,
artborder=args.art_border,
) )
except Exception as e: except Exception as e:
logging.error("error: " + str(e)) logging.error("error: " + str(e))