CPEXIF 0.2 review

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CPEXIF project utility copies EXIF data from a NEF (Nikon RAW file) or a JPEG file to a JPEG file. The CPEXIF program is free soft

License: GPL (GNU General Public License)
File size: 14K
Developer: Vlado Potisk
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CPEXIF project utility copies EXIF data from a NEF (Nikon RAW file) or a JPEG file to a JPEG file.

The CPEXIF program is free software released under the terms of the GNU General Public License. There is no warranty, use it at your own risk.

CPEXIF is a command line utility.

Usage:

NEF to JPEG copy mode

The usage is:

cpexif [options] source.nef destination.jpg

available options are:

--nomakernote
--noisofix

In this mode CPEXIF copies the EXIF data from the source NEF file (Nikon RAW file) to the destination JPEG file. Thumbnails are not copied.

The --nomakernote option instructs the program to strip the MakerNote field from the EXIF data. This reduces the EXIF data size, in many cases substantially. It is intended to overcome the 64kB limit. Some information about the equipment and the picture will be lost when you use this option.

Many Nikon cameras store the ISO Speed value in a non-standard way. By default, CPEXIF fixes it by adding the missing ISO field. It creates one using the information from the MakerNote field. Most people want this, but if you don't, use the --noisofix option.

JPEG to JPEG copy mode

The syntax is straightforward:

cpexif source.jpg destination.jpg

CPEXIF copies the whole file segment containing the EXIF data without examining it. That explains why data modification cannot be performed (no ISO fix for Nikon users, sorry) and no options are available in this mode. This approach prevents any compatibility problems, so JPEGs from any digital camera can be processed this way.

What's New in This Release:
This release fixes JPEG file corruption with EXIF data larger than 64K.
A new JPEG to JPEG copy mode has been added.
An automatic fix for the missing standard ISO Speed field has been added in the NEF to JPEG copy mode.

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