Preserve IPTC metadata

Thumbor request URL

http://ThumborDomain:8888/unsafe/600x0/https://OtherDomain/image.jpg

Expected behaviour

When I configure thumbor very basically and just indicate this parameter “PRESERVE_EXIF_INFO = True”, I should find the CopyrightNotice and Creator in the final image. CopyrightNotice is IPTC metadata. Is there a solution to preserve this metadata ?

Actual behaviour

Unfortunately this fields are not kept.

Operating system

CentOS 7.6 Python 2.7.5 Thumbor 6.7.5 and 7.0.0a5

Your thumbor.conf

# -*- coding: utf-8 -*-

from os.path import expanduser, join
home = expanduser("~")

# thumbor imaging service
# https://github.com/thumbor/thumbor/wiki

# Licensed under the MIT license:
# http://www.opensource.org/licenses/mit-license
# Copyright (c) 2011 globo.com [e-mail]

# the domains that can have their images resized
# use an empty list for allow all sources
ALLOWED_SOURCES = ['OtherDomain']

# the max width of the resized image
# use 0 for no max width
# if the original image is larger than MAX_WIDTH x MAX_HEIGHT,
# it is proportionally resized to MAX_WIDTH x MAX_HEIGHT
# MAX_WIDTH = 800

# the max height of the resized image
# use 0 for no max height
# if the original image is larger than MAX_WIDTH x MAX_HEIGHT,
# it is proportionally resized to MAX_WIDTH x MAX_HEIGHT
# MAX_HEIGHT = 600

# the quality of the generated image
# this option can vary widely between
# imaging engines and works only on jpeg images
#QUALITY = 85
#WEBP_QUALITY = 80

# Automatically converts images to WebP if Accepts header present
#AUTO_WEBP = False

# Automatically converts PNG to JPG if PNG has no transparency.
# WARNING: Depending on case, this is not a good deal. This
# transformation maybe causes distortions or the size of image can increase.
# Images with texts, for example, the result image maybe will be distorced.
# Dark images, for example, the size of result image maybe will be bigger.
# You have to evaluate the majority of your use cases to take a decision about this conf.
#AUTO_PNG_TO_JPG = False

# Specify the ratio between 1in and 1px for SVG images. This is only used when
# rasterizing SVG images having their size units in cm or inches.
# SVG_DPI = 150

# Preserves exif information in generated images. Increases image size in kbytes, use with caution.
PRESERVE_EXIF_INFO = True

# enable this options to specify client-side cache in seconds
MAX_AGE = 24 * 60 * 60

# client-side caching time for temporary images (using queued detectors or after detection errors)
MAX_AGE_TEMP_IMAGE = 0

# Sends If-Modified-Since & Last-Modified headers; requires support from result storage
SEND_IF_MODIFIED_LAST_MODIFIED_HEADERS = False

# the way images are to be loaded
LOADER = 'thumbor.loaders.http_loader'
#LOADER = 'thumbor.loaders.file_loader'

# the path to find images
#FILE_LOADER_ROOT_PATH = './tests/fixtures/images'

# maximum size of the source image in Kbytes.
# use 0 for no limit.
# this is a very important measure to disencourage very
# large source images.
# THIS ONLY WORKS WITH http_loader.
MAX_SOURCE_SIZE = 0

# if you set UPLOAD_ENABLED to True,
# a route /upload will be enabled for your thumbor process
# You can then do a put to this URL to store the photo
# using the specified Storage
UPLOAD_ENABLED = False
UPLOAD_PHOTO_STORAGE = 'thumbor.storages.file_storage'
UPLOAD_PUT_ALLOWED = False
UPLOAD_DELETE_ALLOWED = False
UPLOAD_DEFAULT_FILENAME = 'image'

# how to store the loaded images so we don't have to load
# them again with the loader
#STORAGE = 'thumbor.storages.redis_storage'
# STORAGE = 'thumbor.storages.no_storage'
STORAGE = 'thumbor.storages.file_storage'
#STORAGE = 'thumbor.storages.mixed_storage'
#STORAGE = 'thumbor.storages.memcache_storage'

# root path of the file storage
FILE_STORAGE_ROOT_PATH = join(home, 'thumbor', 'storage' )

# If you want to cache results, use this options to specify how to cache it
# Set Expiration seconds to ZERO if you want them not to expire.
RESULT_STORAGE = 'thumbor.result_storages.file_storage'
RESULT_STORAGE_EXPIRATION_SECONDS = 60 * 60 * 24  # one day
RESULT_STORAGE_FILE_STORAGE_ROOT_PATH = join(home, 'thumbor', 'result_storage')

RESULT_STORAGE_STORES_UNSAFE = False

# stores the crypto key in each image in the storage
# this is VERY useful to allow changing the security key
STORES_CRYPTO_KEY_FOR_EACH_IMAGE = True

#MEMCACHE_STORAGE_SERVERS = ['localhost:11211']

# imaging engine to use to process images

ENGINE = 'thumbor.engines.pil'

# if you need to use the OpenCV engine please refer
# to https://github.com/thumbor/opencv-engine
#ENGINE = 'opencv_engine'

# if you need to use the GraphicsMagick engine please refer
# to https://github.com/thumbor/graphicsmagick-engine
#ENGINE = 'graphicsmagick_engine'


# The graphics engine (and any optimizers) will block the IOLoop.  If you want
# to increase the number of concurrent requests Thumbor can handle, increase
# ENGINE_THREADPOOLSIZE to use a thread pool.  Benchmarks indicate 1xnumber of
# cpus - 2x number of cpus gives the best results, but do some benchmarks with
# your workload.
#ENGINE_THREADPOOL_SIZE = 0

# detectors to use to find Focal Points in the image
# more about detectors can be found in thumbor's docs
# at https://github.com/thumbor/thumbor/wiki
DETECTORS = [
    #'thumbor.detectors.face_detector',
    #'thumbor.detectors.profile_detector',
    #'thumbor.detectors.glasses_detector',
    #'thumbor.detectors.feature_detector',
]

# Redis parameters for queued detectors
# REDIS_QUEUE_SERVER_HOST = 'localhost'
# REDIS_QUEUE_SERVER_PORT = 6379
# REDIS_QUEUE_SERVER_DB = 0
# REDIS_QUEUE_SERVER_PASSWORD = None

# AWS SQS parameters for queued detectors
# SQS_QUEUE_KEY_ID = ''
# SQS_QUEUE_KEY_SECRET = ''
# SQS_QUEUE_REGION = 'us-east-1'

# if you use face detection this is the file that
# OpenCV will use to find faces. The default should be
# fine, so change this at your own peril.
# if you set a relative path it will be relative to
# the thumbor/detectors/face_detector folder
#FACE_DETECTOR_CASCADE_FILE = 'haarcascade_frontalface_alt.xml'

# this is the security key used to encrypt/decrypt urls.
# make sure this is unique and not well-known
# This can be any string of up to 16 characters
SECURITY_KEY = "MY_SECURE_KEY"

# if you enable this, the unencryted URL will be available
# to users.
# IT IS VERY ADVISED TO SET THIS TO False TO STOP OVERLOADING
# OF THE SERVER FROM MALICIOUS USERS
ALLOW_UNSAFE_URL = True

# Mixed storage classes. Change them to the fullname of the
# storage you desire for each operation.
#MIXED_STORAGE_FILE_STORAGE = 'thumbor.storages.file_storage'
#MIXED_STORAGE_CRYPTO_STORAGE = 'thumbor.storages.no_storage'
#MIXED_STORAGE_DETECTOR_STORAGE = 'thumbor.storages.no_storage'


# This configuration indicates whether thumbor should use a
# custom error handler.
# Defaults to: False
#USE_CUSTOM_ERROR_HANDLING=False
#ERROR_HANDLER_MODULE='thumbor.error_handlers.sentry'
#SENTRY_DSN_URL=''
#SENTRY_ENVIRONMENT=None

#FILTERS = [
    #'thumbor.filters.brightness',
    #'thumbor.filters.colorize',
    #'thumbor.filters.contrast',
    #'thumbor.filters.rgb',
    #'thumbor.filters.round_corner',
    #'thumbor.filters.quality',
    #'thumbor.filters.noise',
    #'thumbor.filters.watermark',
    #'thumbor.filters.equalize',
    #'thumbor.filters.fill',
    #'thumbor.filters.saturation',
    #'thumbor.filters.sharpen',
    #'thumbor.filters.strip_exif',
    #'thumbor.filters.strip_icc',
    #'thumbor.filters.frame',
    #'thumbor.filters.grayscale',
    #'thumbor.filters.rotate',
    #'thumbor.filters.format',
    #'thumbor.filters.max_bytes',
    #'thumbor.filters.no_upscale',

    ## can only be applied if there are already points for the image being served
    ## this means that either you are using the local face detector or the image
    ## has already went through remote detection
    ## 'thumbor.filters.redeye',
#]

#OPTIMIZERS = [
    #'thumbor.optimizers.jpegtran',
    #'thumbor.optimizers.gifv',
#]

#JPEGTRAN_PATH = '/usr/bin/jpegtran'

# If the CurlAsyncHTTPClient should be used
# Defaults to: False
#HTTP_LOADER_CURL_ASYNC_HTTP_CLIENT = False

# If the CurlAsyncHTTPClient is being used and
# should timeout on slow download speed.
# SPEED in bytes/s and TIME in s
# Dfaults to: 0 (no timeout)
#HTTP_LOADER_CURL_LOW_SPEED_TIME = 0
#HTTP_LOADER_CURL_LOW_SPEED_LIMIT = 0

[larrytsai1026]

@kkopachev Thanks for the update. Not sure if you’re the right person to be informed of this, but just an FYI: this will be an issue if you have any France based users that uses Thumbor to resize images that is then served to the public on the web. There is a law that was passed that requires the IPTC to be displayed and unmodified.

Link to law: https://www.legifrance.gouv.fr/codes/article_lc/LEGIARTI000038835832/2019-10-24 [legifrance.gouv.fr]

[jimas14]

@scorphus Thanks so much, I had no idea that existed! I’m working on getting that wrapped in a dockerfile now. I see the thumbor version linked in your repo is 6.7.5, but isn’t 7.0 the first version supporting python 3+?