Gecko [ www.utparral.edu.mx ]

Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
BdfFontFile.py	2.75 KB	-rw-r--r--
_binary.py	2 KB	-rw-r--r--
BlpImagePlugin.py	14.23 KB	-rw-r--r--
BmpImagePlugin.py	13.91 KB	-rw-r--r--
BufrStubImagePlugin.py	1.48 KB	-rw-r--r--
ContainerIO.py	2.82 KB	-rw-r--r--
CurImagePlugin.py	1.64 KB	-rw-r--r--
DcxImagePlugin.py	2.09 KB	-rw-r--r--
DdsImagePlugin.py	7.8 KB	-rw-r--r--
EpsImagePlugin.py	11.64 KB	-rw-r--r--
ExifTags.py	9.22 KB	-rw-r--r--
features.py	9.17 KB	-rw-r--r--
FitsStubImagePlugin.py	2.5 KB	-rw-r--r--
FliImagePlugin.py	4.16 KB	-rw-r--r--
FontFile.py	2.7 KB	-rw-r--r--
FpxImagePlugin.py	6.5 KB	-rw-r--r--
FtexImagePlugin.py	3.23 KB	-rw-r--r--
GbrImagePlugin.py	2.73 KB	-rw-r--r--
GdImageFile.py	2.41 KB	-rw-r--r--
GifImagePlugin.py	32.05 KB	-rw-r--r--
GimpGradientFile.py	3.27 KB	-rw-r--r--
GimpPaletteFile.py	1.24 KB	-rw-r--r--
GribStubImagePlugin.py	1.48 KB	-rw-r--r--
Hdf5StubImagePlugin.py	1.48 KB	-rw-r--r--
IcnsImagePlugin.py	11.46 KB	-rw-r--r--
IcoImagePlugin.py	10.57 KB	-rw-r--r--
ImageChops.py	7.13 KB	-rw-r--r--
ImageCms.py	36.22 KB	-rw-r--r--
ImageColor.py	8.52 KB	-rw-r--r--
ImageDraw2.py	4.9 KB	-rw-r--r--
ImageDraw.py	33.9 KB	-rw-r--r--
ImageEnhance.py	3.12 KB	-rw-r--r--
ImageFile.py	20.58 KB	-rw-r--r--
ImageFilter.py	15.75 KB	-rw-r--r--
ImageFont.py	44.29 KB	-rw-r--r--
ImageGrab.py	3.54 KB	-rw-r--r--
ImageMath.py	7.44 KB	-rw-r--r--
ImageMode.py	2.03 KB	-rw-r--r--
ImageMorph.py	7.59 KB	-rw-r--r--
ImageOps.py	19.82 KB	-rw-r--r--
ImagePalette.py	7.66 KB	-rw-r--r--
ImagePath.py	336 B	-rw-r--r--
Image.py	118.51 KB	-rw-r--r--
ImageQt.py	6.54 KB	-rw-r--r--
ImageSequence.py	1.81 KB	-rw-r--r--
ImageShow.py	7.75 KB	-rw-r--r--
ImageStat.py	3.81 KB	-rw-r--r--
ImageTransform.py	2.78 KB	-rw-r--r--
ImageWin.py	7.02 KB	-rw-r--r--
_imagingcms.cpython-310-x86_64-linux-gnu.so	37.8 KB	-rw-r--r--
_imaging.cpython-310-x86_64-linux-gnu.so	438.53 KB	-rw-r--r--
_imagingft.cpython-310-x86_64-linux-gnu.so	41.46 KB	-rw-r--r--
_imagingmath.cpython-310-x86_64-linux-gnu.so	18.43 KB	-rw-r--r--
_imagingmorph.cpython-310-x86_64-linux-gnu.so	14.46 KB	-rw-r--r--
ImImagePlugin.py	10.48 KB	-rw-r--r--
ImtImagePlugin.py	2.15 KB	-rw-r--r--
__init__.py	1.7 KB	-rw-r--r--
IptcImagePlugin.py	5.58 KB	-rw-r--r--
Jpeg2KImagePlugin.py	10.14 KB	-rw-r--r--
JpegImagePlugin.py	27.79 KB	-rw-r--r--
JpegPresets.py	12.06 KB	-rw-r--r--
__main__.py	41 B	-rw-r--r--
McIdasImagePlugin.py	1.71 KB	-rw-r--r--
MicImagePlugin.py	2.55 KB	-rw-r--r--
MpegImagePlugin.py	1.76 KB	-rw-r--r--
MpoImagePlugin.py	4.3 KB	-rw-r--r--
MspImagePlugin.py	5.4 KB	-rw-r--r--
PaletteFile.py	1.08 KB	-rw-r--r--
PalmImagePlugin.py	8.89 KB	-rw-r--r--
PcdImagePlugin.py	1.44 KB	-rw-r--r--
PcfFontFile.py	6.2 KB	-rw-r--r--
PcxImagePlugin.py	5.73 KB	-rw-r--r--
PdfImagePlugin.py	7.16 KB	-rw-r--r--
PdfParser.py	33.75 KB	-rw-r--r--
PixarImagePlugin.py	1.59 KB	-rw-r--r--
PngImagePlugin.py	43.11 KB	-rw-r--r--
PpmImagePlugin.py	4.34 KB	-rw-r--r--
PsdImagePlugin.py	7.88 KB	-rw-r--r--
PSDraw.py	6.56 KB	-rw-r--r--
PyAccess.py	9.38 KB	-rw-r--r--
SgiImagePlugin.py	5.95 KB	-rw-r--r--
SpiderImagePlugin.py	9.31 KB	-rw-r--r--
SunImagePlugin.py	4.18 KB	-rw-r--r--
TarIO.py	1.41 KB	-rw-r--r--
TgaImagePlugin.py	6.32 KB	-rw-r--r--
TiffImagePlugin.py	71.17 KB	-rw-r--r--
TiffTags.py	14.93 KB	-rw-r--r--
_tkinter_finder.py	525 B	-rw-r--r--
_util.py	359 B	-rw-r--r--
_version.py	50 B	-rw-r--r--
WalImageFile.py	5.42 KB	-rw-r--r--
_webp.cpython-310-x86_64-linux-gnu.so	28.09 KB	-rw-r--r--
WebPImagePlugin.py	10.58 KB	-rw-r--r--
WmfImagePlugin.py	4.53 KB	-rw-r--r--
XbmImagePlugin.py	2.37 KB	-rw-r--r--
XpmImagePlugin.py	2.99 KB	-rw-r--r--
XVThumbImagePlugin.py	1.89 KB	-rw-r--r--

Code Editor : PdfImagePlugin.py

#
# The Python Imaging Library.
# $Id$
#
# PDF (Acrobat) file handling
#
# History:
# 1996-07-16 fl   Created
# 1997-01-18 fl   Fixed header
# 2004-02-21 fl   Fixes for 1/L/CMYK images, etc.
# 2004-02-24 fl   Fixes for 1 and P images.
#
# Copyright (c) 1997-2004 by Secret Labs AB.  All rights reserved.
# Copyright (c) 1996-1997 by Fredrik Lundh.
#
# See the README file for information on usage and redistribution.
#

##
# Image plugin for PDF images (output only).
##

import io
import os
import time

from . import Image, ImageFile, ImageSequence, PdfParser, __version__

#
# --------------------------------------------------------------------

# object ids:
#  1. catalogue
#  2. pages
#  3. image
#  4. page
#  5. page contents

def _save_all(im, fp, filename):
    _save(im, fp, filename, save_all=True)

##
# (Internal) Image save plugin for the PDF format.

def _save(im, fp, filename, save_all=False):
    is_appending = im.encoderinfo.get("append", False)
    if is_appending:
        existing_pdf = PdfParser.PdfParser(f=fp, filename=filename, mode="r+b")
    else:
        existing_pdf = PdfParser.PdfParser(f=fp, filename=filename, mode="w+b")

resolution = im.encoderinfo.get("resolution", 72.0)

info = {
        "title": None
        if is_appending
        else os.path.splitext(os.path.basename(filename))[0],
        "author": None,
        "subject": None,
        "keywords": None,
        "creator": None,
        "producer": None,
        "creationDate": None if is_appending else time.gmtime(),
        "modDate": None if is_appending else time.gmtime(),
    }
    for k, default in info.items():
        v = im.encoderinfo.get(k) if k in im.encoderinfo else default
        if v:
            existing_pdf.info[k[0].upper() + k[1:]] = v

#
    # make sure image data is available
    im.load()

existing_pdf.start_writing()
    existing_pdf.write_header()
    existing_pdf.write_comment(f"created by Pillow {__version__} PDF driver")

#
    # pages
    ims = [im]
    if save_all:
        append_images = im.encoderinfo.get("append_images", [])
        for append_im in append_images:
            append_im.encoderinfo = im.encoderinfo.copy()
            ims.append(append_im)
    numberOfPages = 0
    image_refs = []
    page_refs = []
    contents_refs = []
    for im in ims:
        im_numberOfPages = 1
        if save_all:
            try:
                im_numberOfPages = im.n_frames
            except AttributeError:
                # Image format does not have n_frames.
                # It is a single frame image
                pass
        numberOfPages += im_numberOfPages
        for i in range(im_numberOfPages):
            image_refs.append(existing_pdf.next_object_id(0))
            page_refs.append(existing_pdf.next_object_id(0))
            contents_refs.append(existing_pdf.next_object_id(0))
            existing_pdf.pages.append(page_refs[-1])

#
    # catalog and list of pages
    existing_pdf.write_catalog()

pageNumber = 0
    for imSequence in ims:
        im_pages = ImageSequence.Iterator(imSequence) if save_all else [imSequence]
        for im in im_pages:
            # FIXME: Should replace ASCIIHexDecode with RunLengthDecode
            # (packbits) or LZWDecode (tiff/lzw compression).  Note that
            # PDF 1.2 also supports Flatedecode (zip compression).

bits = 8
            params = None
            decode = None

if im.mode == "1":
                filter = "DCTDecode"
                colorspace = PdfParser.PdfName("DeviceGray")
                procset = "ImageB"  # grayscale
                bits = 1
            elif im.mode == "L":
                filter = "DCTDecode"
                # params = f"<< /Predictor 15 /Columns {width-2} >>"
                colorspace = PdfParser.PdfName("DeviceGray")
                procset = "ImageB"  # grayscale
            elif im.mode == "P":
                filter = "ASCIIHexDecode"
                palette = im.getpalette()
                colorspace = [
                    PdfParser.PdfName("Indexed"),
                    PdfParser.PdfName("DeviceRGB"),
                    255,
                    PdfParser.PdfBinary(palette),
                ]
                procset = "ImageI"  # indexed color
            elif im.mode == "RGB":
                filter = "DCTDecode"
                colorspace = PdfParser.PdfName("DeviceRGB")
                procset = "ImageC"  # color images
            elif im.mode == "CMYK":
                filter = "DCTDecode"
                colorspace = PdfParser.PdfName("DeviceCMYK")
                procset = "ImageC"  # color images
                decode = [1, 0, 1, 0, 1, 0, 1, 0]
            else:
                raise ValueError(f"cannot save mode {im.mode}")

#
            # image

op = io.BytesIO()

if filter == "ASCIIHexDecode":
                ImageFile._save(im, op, [("hex", (0, 0) + im.size, 0, im.mode)])
            elif filter == "DCTDecode":
                Image.SAVE["JPEG"](im, op, filename)
            elif filter == "FlateDecode":
                ImageFile._save(im, op, [("zip", (0, 0) + im.size, 0, im.mode)])
            elif filter == "RunLengthDecode":
                ImageFile._save(im, op, [("packbits", (0, 0) + im.size, 0, im.mode)])
            else:
                raise ValueError(f"unsupported PDF filter ({filter})")

#
            # Get image characteristics

width, height = im.size

existing_pdf.write_obj(
                image_refs[pageNumber],
                stream=op.getvalue(),
                Type=PdfParser.PdfName("XObject"),
                Subtype=PdfParser.PdfName("Image"),
                Width=width,  # * 72.0 / resolution,
                Height=height,  # * 72.0 / resolution,
                Filter=PdfParser.PdfName(filter),
                BitsPerComponent=bits,
                Decode=decode,
                DecodeParams=params,
                ColorSpace=colorspace,
            )

#
            # page

existing_pdf.write_page(
                page_refs[pageNumber],
                Resources=PdfParser.PdfDict(
                    ProcSet=[PdfParser.PdfName("PDF"), PdfParser.PdfName(procset)],
                    XObject=PdfParser.PdfDict(image=image_refs[pageNumber]),
                ),
                MediaBox=[
                    0,
                    0,
                    width * 72.0 / resolution,
                    height * 72.0 / resolution,
                ],
                Contents=contents_refs[pageNumber],
            )

#
            # page contents

page_contents = b"q %f 0 0 %f 0 0 cm /image Do Q\n" % (
                width * 72.0 / resolution,
                height * 72.0 / resolution,
            )

existing_pdf.write_obj(contents_refs[pageNumber], stream=page_contents)

pageNumber += 1

#
    # trailer
    existing_pdf.write_xref_and_trailer()
    if hasattr(fp, "flush"):
        fp.flush()
    existing_pdf.close()

#
# --------------------------------------------------------------------

Image.register_save("PDF", _save)
Image.register_save_all("PDF", _save_all)

Image.register_extension("PDF", ".pdf")

Image.register_mime("PDF", "application/pdf")

${this.title}

Code Editor : PdfImagePlugin.py