Portable Network Graphics

Use

You can view Portable Network Graphics (.png) files. You can also save files to this format.

The .png format was developed by the PNG Internet Group, and is a bit-mapped (raster) image file format. This file format is primarily used in graphics and image manipulation programs, and is a standard on the World Wide Web.

PNG is capable of storing up to 16-bits (grayscale) or 48-bits (true color) per pixel, and up to 16-bits of alpha data and supports the progressive display of image data and storage of gamma, transparency and textual information, using a lossless form of data compression.

Supported

All subtypes

Features

This format contains export options. You can use them to customize the way in which your file is saved.

Export Interface

Field	Functional Description
Interlaced	Sets the image to be downloaded using internet browsers in successive waves of bit streams, allowing the image to be viewed in low resolution until the missing lines arrive
Overwrite DPI	Overwrites the default DPI setting with the setting nominated in the DPI field
DPI	The DPI setting to use for the exported file if Overwrite DPI is set to `Yes`. This setting determines the resolution of the image or how many pixels are defined in the boundary of a square inch, when printing. This is expressed as dots per inch (DPI).

Field

Functional Description

Interlaced

Sets the image to be downloaded using internet browsers in successive waves of bit streams, allowing the image to be viewed in low resolution until the missing lines arrive

Overwrite DPI

Overwrites the default DPI setting with the setting nominated in the DPI field

DPI

The DPI setting to use for the exported file if Overwrite DPI is set to Yes.

This setting determines the resolution of the image or how many pixels are defined in the boundary of a square inch, when printing. This is expressed as dots per inch (DPI).