JPEG: The Joint Photographic Experts Group file format is a good web file format but it uses lossy compression. PNG: the Portable Network Graphics format is an extensible file format for the lossless, portable, well-compressed storage of raster images. PNG provides a patent-free replacement for GIF and can also replace many common uses of TIFF. PNG is designed to work well in online viewing applications, such as the World Wide Web, so it is fully streamable with a progressive display option. Also, PNG can store gamma and chromaticity data for improved color-matching on heterogeneous platforms.
JPEG: Tá an fhormáid JPEG (Joint Photographic Experts Group) oiriúnach don Ghréasán, ach úsáideann sé comhbhrú caillteach. PNG: Formáid neamhchaillteach iniompartha inbhreisithe é PNG (Portable Network Graphics), le comhbhrú maith d' íomhánna rastair. Is féidir PNG a úsáid in áit GIF, gan srianta paitinne, agus is féidir é a úsáid in áit TIFF freisin go minic. Dearadh PNG sa chaoi go n- oibreodh sé go maith i bhfeidhmchláir ar líne, mar shampla ar an nGréasán, agus dá bhrí seo tá sé in- sruthaithe le rogha taispeána forchéimnithí. Lena chois sin, is féidir le PNG sonraí gáma agus sonraí crómatachta a stóráil chun dathanna comhoiriúnacha a roghnú ar ardáin éagsúla.