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To securely delete the metadata of a PDF file, it is important to linearize the PDF file afterwards, otherwise changes are reversible and the metadata can be recovered. [ 5 ] [ 6 ] Metadata removal tools are also commonly used to reduce the overall sizes of files, particularly image files posted on the Web.
Many image gallery programs also recognise Exif data and optionally display it alongside the images. Software libraries, such as libexif [9] for C and Adobe XMP Toolkit [10] or Exiv2 [11] for C++, Metadata Extractor [12] for Java, PIL/Pillow for Python, LEADTOOLS or ExifTool [13] for Perl, parse Exif data from files and read/write Exif tag values.
ExifTool is a free and open-source software program for reading, writing, and manipulating image, audio, video, and PDF metadata.As such, ExifTool classes as a tag editor.It is platform independent, available as both a Perl library (Image::ExifTool) and a command-line application.
Exif Since many JPEG editing software used to destroy Exif metadata stored in digital photos, some photo cataloging applications can extract the Exif data and store that in an .exf file, so that the metadata can later be re-inserted into the JPEG file. Raw + JPEG
This allows for data such as the tags to be stored and edited much more efficiently than EXIF or IPTC. Since Windows Live Photo Gallery 2011, geotagging and people tagging [4] (with facial detection and recognition) is also supported. For some supported image file types, People Tags can be read and saved using the Microsoft People Tag XMP Schema.
Print, delete, sandboxed decoding, support for touchpad and touchscreen gestures GPL-3.0-or-later: Phase One Media Pro: Thumbnails, slideshow, zoom, print, light table, library organization, best practice DAM Rotate, rename, delete, batch rename, add/edit metadata (IPTC, EXIF, Custom), free reader app to distribute catalogs Proprietary: Photos ...
DCF optional file – an image file with filename extension ".JPG" conforming to the Exif specification, used when an image is to undergo extensive processing notably in professional uses; uses DCF optional color space; DCF extended image file – a file with a filename (and data structure) other than "JPG" or "THM".
It was designed to become a universal replacement for all established raster formats for the Web. [6] To reach widespread adoption (unlike previous attempts, including several JPEG standards), the designers hope for beneficial network effects by offering the single best option for as many popular use cases as possible.