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1. Introduction
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Download the trial version |
This software allows you to do the following:
- Convert a single image file to all other supported formats except for GIF (e.g., JPG to PNG and BMP; or GIF to PNG, BMP and JPG).
- Convert a non-JPG image file to a set of JPGs over a range of quality/compression values.
- Optimize JPG files for size.
- Convert a set of any number of image files from one format to any other except GIF.
- Convert a set of any number of JPG images to JPG images with a specified quality/compression value.
The reason why conversion to GIF images files is not supported is that Unisys Corporation (which acquired patents on the LZW algorithm used in GIF compression) adopted the policy of requiring any software developer marketing a program which creates GIF files to purchase a license. This is the main reason why the PNG image file format was developed.
The PNG format is comparatively new, but is supported by later versions of most browsers, allowing PNG images, in addition to the usual GIF and JPG images, to be displayed in web pages. Most of the images in the user manual are PNG images.
You can save an often-used configuration (the name and location of the folders for the input and output images) in a file (with .sta extension), and later restore it, using the usual Windows open/save dialog box. This is useful if you perform conversions often using the same input and output folders.
Note that the extension of a graphics file to be converted must be correct, because the file format used in conversion is taken from the file extension (so .jpeg files must be renamed as .jpg files). If a PNG file incorrectly has a .jpg extension (this has been known to happen) then an error will be reported.
Note also that this program cannot read .bmp files which are compressed (via run-length-encoding). If you don't know whether or not your .bmp files are compressed then try converting one of them with the trial version of this software.
How to obtain the software: A trial version of the Easy Graphics File Converter software can be downloaded from this website. Click on the following link to go to a web page with further information about the trial version and downloading and installing it.
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Refund: A refund will be provided promptly up to 30 days after purchase if the software does not perform satisfactorily.
Updates: Purchasers of a user license for this software are entitled to an update to any later version at no additional cost.
Acknowledgements: The low-level graphics file conversion functions used in this software are a subset of the functions in Version 2.4 of Scott Heiman's BMGLib API for reading and saving BitMapped Graphics (BMG) on the Windows operating system. Scott Heiman writes:
Here are the relevant copyright notices (copied from Scott Heiman's documentation file BMGLibAPI.txt):
BMGLib uses several open source libraries that I obtained from the Internet. ... LibJPEG is an open source JPEG file format library that is distributed by the Independent JPEG Group (IJG). LibPNG is an open source PNG file format library supported by people who wanted an alternative to GIF. Long live the rebellion! The zlib library is an open source library for file compression. It is distributed by other closely allied rebels. ... The
LibUnGIF library is Eric Raymond's response to the Unisys LZW patent.
This DLL encapsulates the libJPEG library,
the libPNG library, and other functions.
Easy Graphics File Converter is Copyright © 2003-2009 Hermetic Systems.
Copyright © 1998, 2000, 2001, 2002 M. Scott Heiman. All Rights Reserved
libJPEG is Copyright © 1991-1998 Thomas G. Lane and is part of the Independent JPEG Group's software.
libPNG is Copyright © 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
zLib Copyright © 1995-1998 Jean-loup Gailly.
libUnGif is Copyright © 1997 Eric S. Raymond
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