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PDF to Image Converter Setting of PNG Format

About of PNG Format:
PNG is the Portable Network Graphics format, a format for storing bitmapped (raster) images on computers. Unofficially its acronym stands for "PNG's Not GIF." PNG was designed to be the successor to the once-popular GIF format. 

Setting of PNG Format:
Resolution: 
Here you can define the output image PNG resolution. Usually, a higher resolution setting will result in larger but higher quality PNG format, while a lower setting will result in smaller but lower quality PNG file. 
 
Important: Low resolution is ideal for screen viewing. However, if high-quality paper print or the accurate control of character position is required, you should specify resolution above (include) 600dpi. 
Colour spaces: 
· High Color (24 bit). 
· 256 colors (8 Bit). 
· 16 colors (4 Bit). 
· 2 colors (Black/White). 
 
Sets the color space to be used for the BMP image format output.