The PNG (Portable Network Graphics) is a method to store images by compressing images with no loss of information. PNG files can store colors with up to 48 bits per pixel and gray scales with up to 16 bits per pixel. Moreover, it can also store an optional alpha channel for transparency. When PNG is used in the connected network, it can correct gamma and color of images automatically. So you can accurately render the images on different display devices.  

EMF (Enhanced Metafile) is a metafile format designed by Microsoft, and a successor to the older WMF format. EMF is a newer 32-bit version with additional commands. It is easy to read on MS Windows computer while harder to read on other platforms. EMF files are usually stored between 5 to 10 KB in size, and EMF images do not support transparency. The EMZ format is a compressed version of the EMF format. EMF+ is an extension to EMF that allows GDI+ records to be stored. There are two variations on the EMF+ format: EMF+ Only and EMF+ Dual.

BMP (Bitmap) is very popular nowadays due to the common use of Windows. That is because BMP is the standard format used by Windows for saving image files. It contains more image information than the JPEG, and there is almost no compression of images. So it takes a larger disk space. Presently, 24 bits per pixel BMP files are the most common in all the 1, 4, 8, 15, 24, 32, 64 bits per pixel BMP files.

To convert png emf to bmp file, please download BMP Picture Maker.



Other image format definition:

PDF means Portable Document Format which is a electronic document format developed by Adobe Systems in 1993. Supporting cross-platform, it becomes the ideal document file for data exchange on the internet. PDF could even pack text, fonts, formatting, colors, and device-independent graphic images in a file, which overweighs highly over other electronic document.

Copyright 2007-2010 DIGITBYTE STUDIO All rights reserved.