It is a simple script to create a pdf from a tree of images.
An outline will be produced, according to the tree, with :
- for a folder : the name of the folder
- for a file : the first found of : ImageDescription Exif tag, JPEG comment, filename (without extension)
In a folder, the files are alphabetically sorted and folders are processed first.
For items provided on the command line, no sort is applied, you must sort yourself according your wish.
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#! /usr/bin/python # -*- encoding: utf-8 -*- """ (c) 2013 - Rémi Peyronnet pdf-build.py -o output.pdf files or folder to include Other usefull tools : - extract images from pdf : pdfimages <pdf> <prefix> (with -j for jpeg) - pdftk to uncompress / compress Examples : pdf-build.py --convert="-resample 150 -quality 80%" Classeur MPSI/* -o ClasseurMPSI.pdf -t "Classeur MPSI" -a "Rémi Peyronnet" -p """ import os import os.path import sys import argparse import subprocess from reportlab.pdfgen import canvas from reportlab.lib.pagesizes import A4 from reportlab.lib.utils import haveImages from reportlab.lib.units import cm, inch from reportlab import rl_config from PIL import Image from PIL.ExifTags import TAGS # No A85 encoding, to save 1/5 space rl_config.useA85 = 0 pageSize = A4 cur_page = 0 cur_dir = 0 def getCurBkKey(): global cur_page return "p%d" % cur_page def preparePage(canvas): global cur_page cur_page = cur_page + 1 canvas.bookmarkPage(getCurBkKey()) def processFile(canvas, file, args, level=0): global pageSize if args.verbose: print "Processing file <%s> / %d" % (file, level) if args.convert: (file_base, file_ext) = os.path.splitext(file) tmpfile = file_base + ".tmp" + file_ext command = ['convert',file] + args.convert.split(" ")+ [tmpfile] try: out = subprocess.check_output(command,stderr=subprocess.STDOUT) except subprocess.CalledProcessError as e: print "Error in picasa (%r) : %s" % (command, e.output) raise if os.path.exists(tmpfile): file = tmpfile else: print "Error converting <%s> : %s" % out try: img = Image.open(file) except: if args.verbose: print "Error <%s> : unable to open the file" % file return if "_getexif" in dir(img): exif = img._getexif() else: exif = {} if args.verbose: print "Warning <%s> : no exif found" % file (img_width, img_height) = img.size # Get Title : exif ImageDescription -> jpeg comment -> filename title = "" if len(title) == 0: if 270 in exif: title = exif[270].decode('utf-8') if len(title) == 0: if ("app" in dir(img)) and ("COM" in img.app): title = img.app["COM"].decode(args.jpeg_comment_encoding) if len(title) == 0: (path_, basename) = os.path.split(file) (name, ext_) = os.path.splitext(basename) title = name # Get Page Size if args.pagesize_from_exif: # Get X/Y Resolution and unit if 282 in exif: exif_x_resolution = exif[282] else: exif_x_resolution = (72, 1) if args.verbose: print "Warning <%s>: no X resolution, using default." % file if 283 in exif: exif_y_resolution = exif[283] else: exif_y_resolution = (72, 1) if args.verbose: print "Warning <%s>: no Y resolution, using default." % file exif_unit = inch if (296 in exif) and (exif[296] == 3): exif_unit = cm page_xres = (img.size[0] / (exif_x_resolution[0] / exif_x_resolution[1])) * exif_unit page_yres = (img.size[1] / (exif_y_resolution[0] / exif_y_resolution[1])) * exif_unit else: if (img_width > img_height): page_xres = pageSize[1] page_yres = pageSize[0] else: page_xres = pageSize[0] page_yres = pageSize[1] canvas.addOutlineEntry(title,getCurBkKey(), level, 0) canvas.setPageSize((page_xres, page_yres)) canvas.drawImage(file, 0, 0, page_xres, page_yres, preserveAspectRatio=True) canvas.showPage() preparePage(canvas) if args.convert: if os.path.exists(tmpfile): os.unlink(tmpfile) def processPath(canvas, path, args, level=0): global cur_dir if os.path.isdir(path): cur_dir = cur_dir + 1 dir_bk = "d%d" % cur_dir (rootpath_, name) = os.path.split(path) canvas.bookmarkPage(dir_bk) canvas.addOutlineEntry(name, dir_bk, level, False if level < args.open_levels else True) files = [] lst = os.listdir(path) lst.sort() #Traverse dir and process folders before files for file in lst: if os.path.isdir(os.path.join(path,file)): processPath(canvas, os.path.join(path,file), args, level+1) else: files.append(file) # Process files for file in files: processFile(canvas, os.path.join(path,file), args, level+1) else: processFile(canvas, path, args, level) def process(args): c = canvas.Canvas(args.output) c.setPageCompression(1) c.setAuthor(args.set_author) c.setCreator(args.set_creator) c.setSubject(args.set_subject) c.setTitle(args.set_title) for (index, file) in enumerate(args.files): preparePage(c) processPath(c,file,args,0) c.showOutline() c.save() if not haveImages: print "You don't have support for images ; please install PIL" sys.exit(1) parser = argparse.ArgumentParser("Construct flat album folders to import photos in Picasa") parser.add_argument("-o", "--output", default="output.pdf", help="Filename of output file") parser.add_argument("-v", "--verbose", action="store_true", help="Verbose mode") parser.add_argument("-p","--pagesize-from-exif", action="store_true", help="Set the PDF pagesize according the size of the image") parser.add_argument("-a","--set-author", default="", help="Set the the Author metatag") parser.add_argument("--set-creator", default="pdf-build", help="Set the Creator metatag") parser.add_argument("--set-subject", default="", help="Set the Subject metatag") parser.add_argument("--jpeg-comment-encoding", default="latin1", help="Set encoding of JPEG comments") parser.add_argument("-t","--set-title", default="", help="Set the Title metatag") parser.add_argument("-c","--convert", default="", help="Convert image with ImageMagick's convert before inclusion (provide conversion string)") parser.add_argument("-l","--open-levels", type=int, default=0, help="Number of levels to open in outline") parser.add_argument("files", help="Images files to include", nargs="*") args = parser.parse_args() process(args) |
