User Manual

Image Broadway 6 Help
Importing and Saving Images > Saving Images > File Formats
File Formats
Image Broadway supports many image formats to open and to save an image. It can open and edit an image in one format
and output and save it to another. In addition to saving your image file in bitmapped formats, Image Broadway also allows
you to save your work as Image Broadway Work (*.ibw) format, which preserves floating layers and objects, selections,
channels, and active paths. If Image Broadway cannot determine the valid file extension to use, the default file type (PNG)
will be used to save the file.
PNG format is a compressed image format that supports transparency. It also supports interlace, which does not
change the image itself but arranges the information in such a way so that the image will start to be displayed by
Internet browsers before the whole image is downloaded completely. It gives the appearance of faster loading and
shows the users the display in progress. However, the interlace option increase the file size.
Choose the File > Save Image As menu item.1.
Select the folder and enter the file name.2.
Select the interlace option.3.
GIF format uses LZW compression, which is a lossless compression method, and only supports indexed color mode
(256 colors). The GIF format supports comments to be saved along with image. The comments for an existing file is
preserved and new comments can be added. You can always edit comments using the Image > Information menu
item.
If the image has alpha channel, you have the options for Transparency. To create an image with transparency, you
have option to use matte color to blend the semi-transparent pixels, or not use the matte color to create a image with
hard edge transparency. If Transparency is not checked off, the matte color is used to fill and blend the transparent
and semi-transparent areas (white color is used to fill the transparent area).
The GIF format also supports interlace, which does not change the image itself but arranges the information in such a
way so that the image will start to be displayed by Internet browsers before the whole image is downloaded
completely. It gives the appearance of faster loading and shows the users the display in progress. However, the
interlace option increase the file size.
Choose the File > Save Image As menu item.1.
Select the folder and enter the file name.2.
Image Broadway will create an adaptive palette based on the image and convert the image to indexed-color.3.
Select Tranparency and Matte color options.4.
Select interlace option.5.
For new image, the default comments will be displayed. Default comments can be viewed and edited using the
File > Preferences menu item, Image Comments tab.
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For existing files, the preserved comments will be displayed.7.
JPEG format is a lossy compression format, which only supports the RGB color mode. When you save an image in
JPEG, you can specify the quality up to 100. Even with the quality at 100, it still loses information. This compression
method works very well with photographic images. If you have a large area of a single color such as in screenshots,
or simple paints, you should consider using the PNG format.
The JPEG format does not support transparency. Matting is going to be applied to the image before it is saved.
The JPEG format also supports application extensions such as ICC profile, IPTC profile, or Comment. Image Broadway
preserves all extensions. Image Broadway will try to preserve any additional information kept in the original file. You
can change the comments using the Image > Information menu item or in the Save Options dialog.
Choose the File > Save Image As menu item.1.
Select the folder and enter the file name.2.
If the image has an alpha channel, the matte color is used to fill and blend the transparent and semi-
transparent areas (white color is used to fill the transparent area).
3.
You can choose quality from 0 to 100. Higher number will give you higher quality image but with larger file
size.
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