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
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.
JPEG (Joint Photographic Experts
Group) is a way to store images by compressing digital
images, especially for natural or real scenes. However, it
is not suite for online drawings and cartoons. When
compressing images, some information will be lost. But human
eyes wonít find the inconspicuous difference.
To convert png emf to jpg file,
PIC also called PICtor is an
image file format developed by the principal author of
PCPaint. It is a device-independent raster image format, but
it could also contain additional information about the
device that it was created on. Though PIC format has been
extended to record true-color (24-bit) images, itís
frequently used to store palette-indexed images ranging from
2 or 4 colors to 16 and 256 colors.