[WEBINAR] Application Acceleration: Faster Performance for End Users

Portable Network Graphics (PNG)

Definition - What does Portable Network Graphics (PNG) mean?

Portable network graphics (PNG) refers to a raster graphics image format used on websites and Web applications. It is a type of open and bitmapped graphical file format that is built on the concept of lossless data compression. It was created and conceived by the World Wide Web Consortium as a replacement to graphics interchange format (GIF).

Techopedia explains Portable Network Graphics (PNG)

Unlike GIF, PNG is completely patent and license free, including its data compression algorithm. It adds on to a GIF and JPEG image format by providing alpha channels, gamma correction and a two-dimensional interlacing feature. Its features make it possible to enhance and modify the image to a greater extent than its predecessors. For example, a PNG image supporting alpha channelscan can have its background changed without inferring with the rest of its appearance. It supports up to 48-bit true color and 16-bit grayscale imagery, and doesn’t deteriorate the image quality if it’s re-saved or formatted.

What PNG lacks is multiple-image support that provides the animations as seen in a GIF.

Techopedia Deals

Connect with us

Techopedia on Linkedin
Techopedia on Linkedin
"Techopedia" on Twitter

Sign up for Techopedia's Free Newsletter!

Email Newsletter

Join thousands of others with our weekly newsletter

Free Whitepaper: The Path to Hybrid Cloud
Free Whitepaper: The Path to Hybrid Cloud:
The Path to Hybrid Cloud: Intelligent Bursting To Amazon Web Services & Microsoft Azure
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.